annotate keyimport.c @ 1038:d3925ed45a85

Fix for old compilers, variable declarations at beginning of functions and /**/ comments
author Thorsten Horstmann <thorsten.horstmann@web.de>
date Tue, 24 Feb 2015 20:51:18 +0800
parents 97d1e54941fd
children 31727a8abd4b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4
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1 /*
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2 * Based on PuTTY's import.c for importing/exporting OpenSSH and SSH.com
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3 * keyfiles.
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4 *
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5 * Modifications copyright 2003 Matt Johnston
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6 *
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7 * PuTTY is copyright 1997-2003 Simon Tatham.
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8 *
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9 * Portions copyright Robert de Bath, Joris van Rantwijk, Delian
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10 * Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
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11 * Justin Bradford, and CORE SDI S.A.
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12 *
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13 * Permission is hereby granted, free of charge, to any person
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14 * obtaining a copy of this software and associated documentation files
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15 * (the "Software"), to deal in the Software without restriction,
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16 * including without limitation the rights to use, copy, modify, merge,
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17 * publish, distribute, sublicense, and/or sell copies of the Software,
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18 * and to permit persons to whom the Software is furnished to do so,
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19 * subject to the following conditions:
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20 *
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21 * The above copyright notice and this permission notice shall be
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22 * included in all copies or substantial portions of the Software.
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23 *
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24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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27 * NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
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28 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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29 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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31 */
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32
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33 #include "keyimport.h"
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34 #include "bignum.h"
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35 #include "buffer.h"
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36 #include "dbutil.h"
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37 #include "ecc.h"
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38
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39 static const unsigned char OID_SEC256R1_BLOB[] = {0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07};
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40 static const unsigned char OID_SEC384R1_BLOB[] = {0x2b, 0x81, 0x04, 0x00, 0x22};
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41 static const unsigned char OID_SEC521R1_BLOB[] = {0x2b, 0x81, 0x04, 0x00, 0x23};
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42
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43 #define PUT_32BIT(cp, value) do { \
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44 (cp)[3] = (unsigned char)(value); \
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45 (cp)[2] = (unsigned char)((value) >> 8); \
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46 (cp)[1] = (unsigned char)((value) >> 16); \
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47 (cp)[0] = (unsigned char)((value) >> 24); } while (0)
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48
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49 #define GET_32BIT(cp) \
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50 (((unsigned long)(unsigned char)(cp)[0] << 24) | \
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51 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
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52 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
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53 ((unsigned long)(unsigned char)(cp)[3]))
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54
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55 static int openssh_encrypted(const char *filename);
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56 static sign_key *openssh_read(const char *filename, char *passphrase);
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57 static int openssh_write(const char *filename, sign_key *key,
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58 char *passphrase);
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59
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60 static int dropbear_write(const char*filename, sign_key * key);
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61 static sign_key *dropbear_read(const char* filename);
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62
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63 #if 0
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64 static int sshcom_encrypted(const char *filename, char **comment);
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65 static struct ssh2_userkey *sshcom_read(const char *filename, char *passphrase);
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66 static int sshcom_write(const char *filename, struct ssh2_userkey *key,
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67 char *passphrase);
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68 #endif
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69
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70 int import_encrypted(const char* filename, int filetype) {
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71
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72 if (filetype == KEYFILE_OPENSSH) {
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73 return openssh_encrypted(filename);
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74 #if 0
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75 } else if (filetype == KEYFILE_SSHCOM) {
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76 return sshcom_encrypted(filename, NULL);
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77 #endif
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78 }
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79 return 0;
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80 }
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81
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82 sign_key *import_read(const char *filename, char *passphrase, int filetype) {
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83
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84 if (filetype == KEYFILE_OPENSSH) {
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85 return openssh_read(filename, passphrase);
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86 } else if (filetype == KEYFILE_DROPBEAR) {
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87 return dropbear_read(filename);
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88 #if 0
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89 } else if (filetype == KEYFILE_SSHCOM) {
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90 return sshcom_read(filename, passphrase);
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91 #endif
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92 }
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93 return NULL;
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94 }
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95
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96 int import_write(const char *filename, sign_key *key, char *passphrase,
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97 int filetype) {
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98
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99 if (filetype == KEYFILE_OPENSSH) {
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100 return openssh_write(filename, key, passphrase);
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101 } else if (filetype == KEYFILE_DROPBEAR) {
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102 return dropbear_write(filename, key);
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103 #if 0
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104 } else if (filetype == KEYFILE_SSHCOM) {
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105 return sshcom_write(filename, key, passphrase);
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106 #endif
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107 }
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108 return 0;
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109 }
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110
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111 static sign_key *dropbear_read(const char* filename) {
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112
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113 buffer * buf = NULL;
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114 sign_key *ret = NULL;
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115 enum signkey_type type;
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116
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117 buf = buf_new(MAX_PRIVKEY_SIZE);
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118 if (buf_readfile(buf, filename) == DROPBEAR_FAILURE) {
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119 goto error;
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120 }
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121
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122 buf_setpos(buf, 0);
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123 ret = new_sign_key();
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124
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125 type = DROPBEAR_SIGNKEY_ANY;
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126 if (buf_get_priv_key(buf, ret, &type) == DROPBEAR_FAILURE){
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127 goto error;
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128 }
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129 buf_free(buf);
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130
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131 ret->type = type;
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132
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133 return ret;
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134
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135 error:
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136 if (buf) {
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137 buf_free(buf);
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138 }
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139 if (ret) {
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140 sign_key_free(ret);
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141 }
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142 return NULL;
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143 }
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144
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145 /* returns 0 on fail, 1 on success */
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146 static int dropbear_write(const char*filename, sign_key * key) {
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147
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148 buffer * buf;
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149 FILE*fp;
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150 int len;
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151 int ret;
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parents:
diff changeset
152
73
0bf5cebe622c Dropbearkey can now print out pubkey portions
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
153 buf = buf_new(MAX_PRIVKEY_SIZE);
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
154 buf_put_priv_key(buf, key, key->type);
4
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parents:
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155
87
680a0bc9df0a Some small fixes for unused vars, and old messages
Matt Johnston <matt@ucc.asn.au>
parents: 73
diff changeset
156 fp = fopen(filename, "w");
4
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parents:
diff changeset
157 if (!fp) {
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parents:
diff changeset
158 ret = 0;
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parents:
diff changeset
159 goto out;
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parents:
diff changeset
160 }
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parents:
diff changeset
161
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parents:
diff changeset
162 buf_setpos(buf, 0);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
163 do {
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parents:
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164 len = fwrite(buf_getptr(buf, buf->len - buf->pos),
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
165 1, buf->len - buf->pos, fp);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
166 buf_incrpos(buf, len);
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parents:
diff changeset
167 } while (len > 0 && buf->len != buf->pos);
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parents:
diff changeset
168
256
ac890087b8c1 * keyimport.c: fclose() the key file to make sure data gets written
Matt Johnston <matt@ucc.asn.au>
parents: 241
diff changeset
169 fclose(fp);
ac890087b8c1 * keyimport.c: fclose() the key file to make sure data gets written
Matt Johnston <matt@ucc.asn.au>
parents: 241
diff changeset
170
4
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parents:
diff changeset
171 if (buf->pos != buf->len) {
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parents:
diff changeset
172 ret = 0;
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parents:
diff changeset
173 } else {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
174 ret = 1;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
175 }
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parents:
diff changeset
176 out:
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parents:
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177 buf_free(buf);
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parents:
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178 return ret;
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Matt Johnston <matt@ucc.asn.au>
parents:
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179 }
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parents:
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180
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parents:
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181
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
182 /* ----------------------------------------------------------------------
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Matt Johnston <matt@ucc.asn.au>
parents:
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183 * Helper routines. (The base64 ones are defined in sshpubk.c.)
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Matt Johnston <matt@ucc.asn.au>
parents:
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184 */
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185
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Matt Johnston <matt@ucc.asn.au>
parents:
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186 #define isbase64(c) ( ((c) >= 'A' && (c) <= 'Z') || \
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parents:
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187 ((c) >= 'a' && (c) <= 'z') || \
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Matt Johnston <matt@ucc.asn.au>
parents:
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188 ((c) >= '0' && (c) <= '9') || \
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Matt Johnston <matt@ucc.asn.au>
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189 (c) == '+' || (c) == '/' || (c) == '=' \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
190 )
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Matt Johnston <matt@ucc.asn.au>
parents:
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191
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 /* cpl has to be less than 100 */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
193 static void base64_encode_fp(FILE * fp, unsigned char *data,
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Matt Johnston <matt@ucc.asn.au>
parents:
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194 int datalen, int cpl)
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Matt Johnston <matt@ucc.asn.au>
parents:
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195 {
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Matt Johnston <matt@ucc.asn.au>
parents:
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196 char out[100];
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
197 int n;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
198 unsigned long outlen;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
199 int rawcpl;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200 rawcpl = cpl * 3 / 4;
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 87
diff changeset
201 dropbear_assert((unsigned int)cpl < sizeof(out));
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
203 while (datalen > 0) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
204 n = (datalen < rawcpl ? datalen : rawcpl);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205 outlen = sizeof(out);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206 base64_encode(data, n, out, &outlen);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 data += n;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 datalen -= n;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 fwrite(out, 1, outlen, fp);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210 fputc('\n', fp);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
211 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
213 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
214 * Read an ASN.1/BER identifier and length pair.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
215 *
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 * Flags are a combination of the #defines listed below.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
217 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
218 * Returns -1 if unsuccessful; otherwise returns the number of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 * bytes used out of the source data.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220 */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222 /* ASN.1 tag classes. */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
223 #define ASN1_CLASS_UNIVERSAL (0 << 6)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224 #define ASN1_CLASS_APPLICATION (1 << 6)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
225 #define ASN1_CLASS_CONTEXT_SPECIFIC (2 << 6)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 #define ASN1_CLASS_PRIVATE (3 << 6)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227 #define ASN1_CLASS_MASK (3 << 6)
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parents:
diff changeset
228
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
229 /* Primitive versus constructed bit. */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
230 #define ASN1_CONSTRUCTED (1 << 5)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
231
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 static int ber_read_id_len(void *source, int sourcelen,
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233 int *id, int *length, int *flags)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235 unsigned char *p = (unsigned char *) source;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
237 if (sourcelen == 0)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
238 return -1;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
239
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 *flags = (*p & 0xE0);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 if ((*p & 0x1F) == 0x1F) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
242 *id = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 while (*p & 0x80) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 *id = (*id << 7) | (*p & 0x7F);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
245 p++, sourcelen--;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 if (sourcelen == 0)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 return -1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
249 *id = (*id << 7) | (*p & 0x7F);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
250 p++, sourcelen--;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
251 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252 *id = *p & 0x1F;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253 p++, sourcelen--;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
254 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
256 if (sourcelen == 0)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257 return -1;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 if (*p & 0x80) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260 int n = *p & 0x7F;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 p++, sourcelen--;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262 if (sourcelen < n)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 return -1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 *length = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265 while (n--)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 *length = (*length << 8) | (*p++);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
267 sourcelen -= n;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
268 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 *length = *p;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270 p++, sourcelen--;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
271 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
273 return p - (unsigned char *) source;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
274 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
276 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277 * Write an ASN.1/BER identifier and length pair. Returns the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
278 * number of bytes consumed. Assumes dest contains enough space.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
279 * Will avoid writing anything if dest is NULL, but still return
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
280 * amount of space required.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
281 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
282 static int ber_write_id_len(void *dest, int id, int length, int flags)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
283 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
284 unsigned char *d = (unsigned char *)dest;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
285 int len = 0;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
286
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
287 if (id <= 30) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 * Identifier is one byte.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
290 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
291 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292 if (d) *d++ = id | flags;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
293 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
294 int n;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
295 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
296 * Identifier is multiple bytes: the first byte is 11111
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
297 * plus the flags, and subsequent bytes encode the value of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
298 * the identifier, 7 bits at a time, with the top bit of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
299 * each byte 1 except the last one which is 0.
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
300 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
301 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
302 if (d) *d++ = 0x1F | flags;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
303 for (n = 1; (id >> (7*n)) > 0; n++)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
304 continue; /* count the bytes */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
305 while (n--) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
306 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
307 if (d) *d++ = (n ? 0x80 : 0) | ((id >> (7*n)) & 0x7F);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
308 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
309 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
310
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
311 if (length < 128) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
312 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
313 * Length is one byte.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
314 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
315 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
316 if (d) *d++ = length;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
317 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
318 int n;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
319 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
320 * Length is multiple bytes. The first is 0x80 plus the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
321 * number of subsequent bytes, and the subsequent bytes
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
322 * encode the actual length.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
323 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
324 for (n = 1; (length >> (8*n)) > 0; n++)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
325 continue; /* count the bytes */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
326 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
327 if (d) *d++ = 0x80 | n;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
328 while (n--) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
329 len++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
330 if (d) *d++ = (length >> (8*n)) & 0xFF;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
331 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
332 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
333
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
334 return len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
335 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
336
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
337
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
338 /* Simple structure to point to an mp-int within a blob. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
339 struct mpint_pos { void *start; int bytes; };
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
340
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
341 /* ----------------------------------------------------------------------
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
342 * Code to read and write OpenSSH private keys.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
343 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
344
793
70625eed40c9 A bit of work on ecdsa for host/auth keys
Matt Johnston <matt@ucc.asn.au>
parents: 491
diff changeset
345 enum { OSSH_DSA, OSSH_RSA, OSSH_EC };
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
346 struct openssh_key {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
347 int type;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
348 int encrypted;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
349 char iv[32];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
350 unsigned char *keyblob;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
351 unsigned int keyblob_len, keyblob_size;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
352 };
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
353
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
354 static struct openssh_key *load_openssh_key(const char *filename)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
355 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
356 struct openssh_key *ret;
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 256
diff changeset
357 FILE *fp = NULL;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
358 char buffer[256];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
359 char *errmsg = NULL, *p = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
360 int headers_done;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
361 unsigned long len, outlen;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
362
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
363 ret = (struct openssh_key*)m_malloc(sizeof(struct openssh_key));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
364 ret->keyblob = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
365 ret->keyblob_len = ret->keyblob_size = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
366 ret->encrypted = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
367 memset(ret->iv, 0, sizeof(ret->iv));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
368
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
369 if (strlen(filename) == 1 && filename[0] == '-') {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
370 fp = stdin;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
371 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
372 fp = fopen(filename, "r");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
373 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
374 if (!fp) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
375 errmsg = "Unable to open key file";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
376 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
377 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
378 if (!fgets(buffer, sizeof(buffer), fp) ||
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
379 0 != strncmp(buffer, "-----BEGIN ", 11) ||
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
380 0 != strcmp(buffer+strlen(buffer)-17, "PRIVATE KEY-----\n")) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
381 errmsg = "File does not begin with OpenSSH key header";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
382 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
383 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
384 if (!strcmp(buffer, "-----BEGIN RSA PRIVATE KEY-----\n"))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
385 ret->type = OSSH_RSA;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
386 else if (!strcmp(buffer, "-----BEGIN DSA PRIVATE KEY-----\n"))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
387 ret->type = OSSH_DSA;
793
70625eed40c9 A bit of work on ecdsa for host/auth keys
Matt Johnston <matt@ucc.asn.au>
parents: 491
diff changeset
388 else if (!strcmp(buffer, "-----BEGIN EC PRIVATE KEY-----\n"))
70625eed40c9 A bit of work on ecdsa for host/auth keys
Matt Johnston <matt@ucc.asn.au>
parents: 491
diff changeset
389 ret->type = OSSH_EC;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
390 else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
391 errmsg = "Unrecognised key type";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
392 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
393 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
394
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
395 headers_done = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
396 while (1) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
397 if (!fgets(buffer, sizeof(buffer), fp)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
398 errmsg = "Unexpected end of file";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
399 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
400 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
401 if (0 == strncmp(buffer, "-----END ", 9) &&
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
402 0 == strcmp(buffer+strlen(buffer)-17, "PRIVATE KEY-----\n"))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
403 break; /* done */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
404 if ((p = strchr(buffer, ':')) != NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
405 if (headers_done) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
406 errmsg = "Header found in body of key data";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
407 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
408 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
409 *p++ = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
410 while (*p && isspace((unsigned char)*p)) p++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
411 if (!strcmp(buffer, "Proc-Type")) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
412 if (p[0] != '4' || p[1] != ',') {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
413 errmsg = "Proc-Type is not 4 (only 4 is supported)";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
414 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
415 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
416 p += 2;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
417 if (!strcmp(p, "ENCRYPTED\n"))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
418 ret->encrypted = 1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
419 } else if (!strcmp(buffer, "DEK-Info")) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
420 int i, j;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
421
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
422 if (strncmp(p, "DES-EDE3-CBC,", 13)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
423 errmsg = "Ciphers other than DES-EDE3-CBC not supported";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
424 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
425 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
426 p += 13;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
427 for (i = 0; i < 8; i++) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
428 if (1 != sscanf(p, "%2x", &j))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
429 break;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
430 ret->iv[i] = j;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
431 p += 2;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
432 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
433 if (i < 8) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
434 errmsg = "Expected 16-digit iv in DEK-Info";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
435 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
436 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
437 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
438 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
439 headers_done = 1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
440 len = strlen(buffer);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
441 outlen = len*4/3;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
442 if (ret->keyblob_len + outlen > ret->keyblob_size) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
443 ret->keyblob_size = ret->keyblob_len + outlen + 256;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
444 ret->keyblob = (unsigned char*)m_realloc(ret->keyblob,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
445 ret->keyblob_size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
446 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
447 outlen = ret->keyblob_size - ret->keyblob_len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
448 if (base64_decode(buffer, len,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
449 ret->keyblob + ret->keyblob_len, &outlen) != CRYPT_OK){
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
450 errmsg = "Error decoding base64";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
451 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
452 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
453 ret->keyblob_len += outlen;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
454 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
455 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
456
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
457 if (ret->keyblob_len == 0 || !ret->keyblob) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
458 errmsg = "Key body not present";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
459 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
460 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
461
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
462 if (ret->encrypted && ret->keyblob_len % 8 != 0) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
463 errmsg = "Encrypted key blob is not a multiple of cipher block size";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
464 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
465 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
466
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
467 memset(buffer, 0, sizeof(buffer));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
468 return ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
469
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
470 error:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
471 memset(buffer, 0, sizeof(buffer));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
472 if (ret) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
473 if (ret->keyblob) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
474 memset(ret->keyblob, 0, ret->keyblob_size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
475 m_free(ret->keyblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
476 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
477 memset(&ret, 0, sizeof(ret));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
478 m_free(ret);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
479 }
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 256
diff changeset
480 if (fp) {
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 256
diff changeset
481 fclose(fp);
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 256
diff changeset
482 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
483 if (errmsg) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
484 fprintf(stderr, "Error: %s\n", errmsg);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
485 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
486 return NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
487 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
488
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
489 static int openssh_encrypted(const char *filename)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
490 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
491 struct openssh_key *key = load_openssh_key(filename);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
492 int ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
493
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
494 if (!key)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
495 return 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
496 ret = key->encrypted;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
497 memset(key->keyblob, 0, key->keyblob_size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
498 m_free(key->keyblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
499 memset(&key, 0, sizeof(key));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
500 m_free(key);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
501 return ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
502 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
503
846
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 845
diff changeset
504 static sign_key *openssh_read(const char *filename, char * UNUSED(passphrase))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
505 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
506 struct openssh_key *key;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
507 unsigned char *p;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
508 int ret, id, len, flags;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
509 int i, num_integers = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
510 sign_key *retval = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
511 char *errmsg;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
512 char *modptr = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
513 int modlen = -9999;
846
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 845
diff changeset
514 enum signkey_type type;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
515
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
516 sign_key *retkey;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
517 buffer * blobbuf = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
518
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
519 retkey = new_sign_key();
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
520
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
521 key = load_openssh_key(filename);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
522
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
523 if (!key)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
524 return NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
525
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
526 if (key->encrypted) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
527 errmsg = "encrypted keys not supported currently";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
528 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
529 #if 0
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
530 /* matt TODO */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
531 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
532 * Derive encryption key from passphrase and iv/salt:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
533 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
534 * - let block A equal MD5(passphrase || iv)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
535 * - let block B equal MD5(A || passphrase || iv)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
536 * - block C would be MD5(B || passphrase || iv) and so on
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
537 * - encryption key is the first N bytes of A || B
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
538 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
539 struct MD5Context md5c;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
540 unsigned char keybuf[32];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
541
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
542 MD5Init(&md5c);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
543 MD5Update(&md5c, (unsigned char *)passphrase, strlen(passphrase));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
544 MD5Update(&md5c, (unsigned char *)key->iv, 8);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
545 MD5Final(keybuf, &md5c);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
546
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
547 MD5Init(&md5c);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
548 MD5Update(&md5c, keybuf, 16);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
549 MD5Update(&md5c, (unsigned char *)passphrase, strlen(passphrase));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
550 MD5Update(&md5c, (unsigned char *)key->iv, 8);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
551 MD5Final(keybuf+16, &md5c);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
552
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
553 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
554 * Now decrypt the key blob.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
555 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
556 des3_decrypt_pubkey_ossh(keybuf, (unsigned char *)key->iv,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
557 key->keyblob, key->keyblob_len);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
558
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
559 memset(&md5c, 0, sizeof(md5c));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
560 memset(keybuf, 0, sizeof(keybuf));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
561 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
562 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
563
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
564 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
565 * Now we have a decrypted key blob, which contains an ASN.1
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
566 * encoded private key. We must now untangle the ASN.1.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
567 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
568 * We expect the whole key blob to be formatted as a SEQUENCE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
569 * (0x30 followed by a length code indicating that the rest of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
570 * the blob is part of the sequence). Within that SEQUENCE we
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
571 * expect to see a bunch of INTEGERs. What those integers mean
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
572 * depends on the key type:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
573 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
574 * - For RSA, we expect the integers to be 0, n, e, d, p, q,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
575 * dmp1, dmq1, iqmp in that order. (The last three are d mod
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
576 * (p-1), d mod (q-1), inverse of q mod p respectively.)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
577 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
578 * - For DSA, we expect them to be 0, p, q, g, y, x in that
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
579 * order.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
580 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
581
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
582 p = key->keyblob;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
583
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
584 /* Expect the SEQUENCE header. Take its absence as a failure to decrypt. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
585 ret = ber_read_id_len(p, key->keyblob_len, &id, &len, &flags);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
586 p += ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
587 if (ret < 0 || id != 16) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
588 errmsg = "ASN.1 decoding failure - wrong password?";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
589 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
590 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
591
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
592 /* Expect a load of INTEGERs. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
593 if (key->type == OSSH_RSA)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
594 num_integers = 9;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
595 else if (key->type == OSSH_DSA)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
596 num_integers = 6;
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
597 else if (key->type == OSSH_EC)
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
598 num_integers = 1;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
599
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
600 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
601 * Space to create key blob in.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
602 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
603 blobbuf = buf_new(3000);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
604
935
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
605 #ifdef DROPBEAR_DSS
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
606 if (key->type == OSSH_DSA) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
607 buf_putstring(blobbuf, "ssh-dss", 7);
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
608 retkey->type = DROPBEAR_SIGNKEY_DSS;
935
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
609 }
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
610 #endif
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
611 #ifdef DROPBEAR_RSA
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
612 if (key->type == OSSH_RSA) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
613 buf_putstring(blobbuf, "ssh-rsa", 7);
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
614 retkey->type = DROPBEAR_SIGNKEY_RSA;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
615 }
935
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
616 #endif
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
617
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
618 for (i = 0; i < num_integers; i++) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
619 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
620 &id, &len, &flags);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
621 p += ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
622 if (ret < 0 || id != 2 ||
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
623 key->keyblob+key->keyblob_len-p < len) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
624 errmsg = "ASN.1 decoding failure";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
625 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
626 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
627
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
628 if (i == 0) {
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
629 /* First integer is a version indicator */
991
4f65c867fc99 Fix variables may be uninitialized.
Like Ma <likemartinma@gmail.com>
parents: 935
diff changeset
630 int expected = -1;
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
631 switch (key->type) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
632 case OSSH_RSA:
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
633 case OSSH_DSA:
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
634 expected = 0;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
635 break;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
636 case OSSH_EC:
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
637 expected = 1;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
638 break;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
639 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
640 if (len != 1 || p[0] != expected) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
641 errmsg = "Version number mismatch";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
642 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
643 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
644 } else if (key->type == OSSH_RSA) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
645 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
646 * OpenSSH key order is n, e, d, p, q, dmp1, dmq1, iqmp
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
647 * but we want e, n, d, p, q
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
648 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
649 if (i == 1) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
650 /* Save the details for after we deal with number 2. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
651 modptr = (char *)p;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
652 modlen = len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
653 } else if (i >= 2 && i <= 5) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
654 buf_putstring(blobbuf, p, len);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
655 if (i == 2) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
656 buf_putstring(blobbuf, modptr, modlen);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
657 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
658 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
659 } else if (key->type == OSSH_DSA) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
660 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
661 * OpenSSH key order is p, q, g, y, x,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
662 * we want the same.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
663 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
664 buf_putstring(blobbuf, p, len);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
665 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
666
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
667 /* Skip past the number. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
668 p += len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
669 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
670
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
671 #ifdef DROPBEAR_ECDSA
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
672 if (key->type == OSSH_EC) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
673 unsigned char* private_key_bytes = NULL;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
674 int private_key_len = 0;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
675 unsigned char* public_key_bytes = NULL;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
676 int public_key_len = 0;
807
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 806
diff changeset
677 ecc_key *ecc = NULL;
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
678 const struct dropbear_ecc_curve *curve = NULL;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
679
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
680 /* See SEC1 v2, Appendix C.4 */
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
681 /* OpenSSL (so OpenSSH) seems to include the optional parts. */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
682
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
683 /* privateKey OCTET STRING, */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
684 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
685 &id, &len, &flags);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
686 p += ret;
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
687 /* id==4 for octet string */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
688 if (ret < 0 || id != 4 ||
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
689 key->keyblob+key->keyblob_len-p < len) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
690 errmsg = "ASN.1 decoding failure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
691 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
692 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
693 private_key_bytes = p;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
694 private_key_len = len;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
695 p += len;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
696
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
697 /* parameters [0] ECDomainParameters {{ SECGCurveNames }} OPTIONAL, */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
698 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
699 &id, &len, &flags);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
700 p += ret;
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
701 /* id==0 */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
702 if (ret < 0 || id != 0) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
703 errmsg = "ASN.1 decoding failure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
704 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
705 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
706
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
707 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
708 &id, &len, &flags);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
709 p += ret;
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
710 /* id==6 for object */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
711 if (ret < 0 || id != 6 ||
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
712 key->keyblob+key->keyblob_len-p < len) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
713 errmsg = "ASN.1 decoding failure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
714 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
715 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
716
847
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
717 if (0) {}
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
718 #ifdef DROPBEAR_ECC_256
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
719 else if (len == sizeof(OID_SEC256R1_BLOB)
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
720 && memcmp(p, OID_SEC256R1_BLOB, len) == 0) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
721 retkey->type = DROPBEAR_SIGNKEY_ECDSA_NISTP256;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
722 curve = &ecc_curve_nistp256;
847
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
723 }
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
724 #endif
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
725 #ifdef DROPBEAR_ECC_384
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
726 else if (len == sizeof(OID_SEC384R1_BLOB)
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
727 && memcmp(p, OID_SEC384R1_BLOB, len) == 0) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
728 retkey->type = DROPBEAR_SIGNKEY_ECDSA_NISTP384;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
729 curve = &ecc_curve_nistp384;
847
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
730 }
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
731 #endif
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
732 #ifdef DROPBEAR_ECC_521
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
733 else if (len == sizeof(OID_SEC521R1_BLOB)
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
734 && memcmp(p, OID_SEC521R1_BLOB, len) == 0) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
735 retkey->type = DROPBEAR_SIGNKEY_ECDSA_NISTP521;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
736 curve = &ecc_curve_nistp521;
847
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
737 }
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
738 #endif
f4bb964c8678 Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents: 846
diff changeset
739 else {
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
740 errmsg = "Unknown ECC key type";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
741 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
742 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
743 p += len;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
744
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
745 /* publicKey [1] BIT STRING OPTIONAL */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
746 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
747 &id, &len, &flags);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
748 p += ret;
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
749 /* id==1 */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
750 if (ret < 0 || id != 1) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
751 errmsg = "ASN.1 decoding failure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
752 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
753 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
754
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
755 ret = ber_read_id_len(p, key->keyblob+key->keyblob_len-p,
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
756 &id, &len, &flags);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
757 p += ret;
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
758 /* id==3 for bit string */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
759 if (ret < 0 || id != 3 ||
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
760 key->keyblob+key->keyblob_len-p < len) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
761 errmsg = "ASN.1 decoding failure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
762 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
763 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
764 public_key_bytes = p+1;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
765 public_key_len = len-1;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
766 p += len;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
767
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
768 buf_putbytes(blobbuf, public_key_bytes, public_key_len);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
769 ecc = buf_get_ecc_raw_pubkey(blobbuf, curve);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
770 if (!ecc) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
771 errmsg = "Error parsing ECC key";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
772 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
773 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
774 m_mp_alloc_init_multi((mp_int**)&ecc->k, NULL);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
775 if (mp_read_unsigned_bin(ecc->k, private_key_bytes, private_key_len)
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
776 != MP_OKAY) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
777 errmsg = "Error parsing ECC key";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
778 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
779 }
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
780
841
d4ce5269a439 Fix specifying a keysize for key generation, fix key name arguments
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
781 *signkey_key_ptr(retkey, retkey->type) = ecc;
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
782 }
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
783 #endif /* DROPBEAR_ECDSA */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
784
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
785 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
786 * Now put together the actual key. Simplest way to do this is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
787 * to assemble our own key blobs and feed them to the createkey
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
788 * functions; this is a bit faffy but it does mean we get all
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
789 * the sanity checks for free.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
790 */
806
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
791 if (key->type == OSSH_RSA || key->type == OSSH_DSA) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
792 buf_setpos(blobbuf, 0);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
793 type = DROPBEAR_SIGNKEY_ANY;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
794 if (buf_get_priv_key(blobbuf, retkey, &type)
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
795 != DROPBEAR_SUCCESS) {
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
796 errmsg = "unable to create key structure";
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
797 sign_key_free(retkey);
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
798 retkey = NULL;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
799 goto error;
71e7d31f7671 hackish ECC import code from OpenSSH
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
800 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
801 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
802
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
803 errmsg = NULL; /* no error */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
804 retval = retkey;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
805
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
806 error:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
807 if (blobbuf) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
808 buf_burn(blobbuf);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
809 buf_free(blobbuf);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
810 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
811 m_burn(key->keyblob, key->keyblob_size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
812 m_free(key->keyblob);
1002
97d1e54941fd When clearing the memory of 'key' in function openssh_read(), only the size
Christian Engelmayer <cengelma@gmx.at>
parents: 991
diff changeset
813 m_burn(key, sizeof(*key));
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
814 m_free(key);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
815 if (errmsg) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
816 fprintf(stderr, "Error: %s\n", errmsg);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
817 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
818 return retval;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
819 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
820
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
821 static int openssh_write(const char *filename, sign_key *key,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
822 char *passphrase)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
823 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
824 buffer * keyblob = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
825 buffer * extrablob = NULL; /* used for calculated values to write */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
826 unsigned char *outblob = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
827 int outlen = -9999;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
828 struct mpint_pos numbers[9];
991
4f65c867fc99 Fix variables may be uninitialized.
Like Ma <likemartinma@gmail.com>
parents: 935
diff changeset
829 int nnumbers = -1, pos = 0, len = 0, seqlen, i;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
830 char *header = NULL, *footer = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
831 char zero[1];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
832 int ret = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
833 FILE *fp;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
834
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
835 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
836 mp_int dmp1, dmq1, iqmp, tmpval; /* for rsa */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
837 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
838
935
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
839 if (
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
840 #ifdef DROPBEAR_RSA
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
841 key->type == DROPBEAR_SIGNKEY_RSA ||
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
842 #endif
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
843 #ifdef DROPBEAR_DSS
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
844 key->type == DROPBEAR_SIGNKEY_DSS ||
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
845 #endif
25692c60479e Fix compiling with ECDSA and DSS disabled
Matt Johnston <matt@ucc.asn.au>
parents: 867
diff changeset
846 0)
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
847 {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
848 /*
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
849 * Fetch the key blobs.
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
850 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
851 keyblob = buf_new(3000);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
852 buf_put_priv_key(keyblob, key, key->type);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
853
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
854 buf_setpos(keyblob, 0);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
855 /* skip the "ssh-rsa" or "ssh-dss" header */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
856 buf_incrpos(keyblob, buf_getint(keyblob));
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
857
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
858 /*
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
859 * Find the sequence of integers to be encoded into the OpenSSH
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
860 * key blob, and also decide on the header line.
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
861 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
862 numbers[0].start = zero; numbers[0].bytes = 1; zero[0] = '\0';
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
863
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
864 #ifdef DROPBEAR_RSA
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
865 if (key->type == DROPBEAR_SIGNKEY_RSA) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
866
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
867 if (key->rsakey->p == NULL || key->rsakey->q == NULL) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
868 fprintf(stderr, "Pre-0.33 Dropbear keys cannot be converted to OpenSSH keys.\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
869 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
870 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
871
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
872 /* e */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
873 numbers[2].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
874 numbers[2].start = buf_getptr(keyblob, numbers[2].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
875 buf_incrpos(keyblob, numbers[2].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
876
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
877 /* n */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
878 numbers[1].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
879 numbers[1].start = buf_getptr(keyblob, numbers[1].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
880 buf_incrpos(keyblob, numbers[1].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
881
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
882 /* d */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
883 numbers[3].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
884 numbers[3].start = buf_getptr(keyblob, numbers[3].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
885 buf_incrpos(keyblob, numbers[3].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
886
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
887 /* p */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
888 numbers[4].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
889 numbers[4].start = buf_getptr(keyblob, numbers[4].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
890 buf_incrpos(keyblob, numbers[4].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
891
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
892 /* q */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
893 numbers[5].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
894 numbers[5].start = buf_getptr(keyblob, numbers[5].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
895 buf_incrpos(keyblob, numbers[5].bytes);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
896
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
897 /* now calculate some extra parameters: */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
898 m_mp_init(&tmpval);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
899 m_mp_init(&dmp1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
900 m_mp_init(&dmq1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
901 m_mp_init(&iqmp);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
902
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
903 /* dmp1 = d mod (p-1) */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
904 if (mp_sub_d(key->rsakey->p, 1, &tmpval) != MP_OKAY) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
905 fprintf(stderr, "Bignum error for p-1\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
906 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
907 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
908 if (mp_mod(key->rsakey->d, &tmpval, &dmp1) != MP_OKAY) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
909 fprintf(stderr, "Bignum error for dmp1\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
910 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
911 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
912
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
913 /* dmq1 = d mod (q-1) */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
914 if (mp_sub_d(key->rsakey->q, 1, &tmpval) != MP_OKAY) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
915 fprintf(stderr, "Bignum error for q-1\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
916 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
917 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
918 if (mp_mod(key->rsakey->d, &tmpval, &dmq1) != MP_OKAY) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
919 fprintf(stderr, "Bignum error for dmq1\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
920 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
921 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
922
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
923 /* iqmp = (q^-1) mod p */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
924 if (mp_invmod(key->rsakey->q, key->rsakey->p, &iqmp) != MP_OKAY) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
925 fprintf(stderr, "Bignum error for iqmp\n");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
926 goto error;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
927 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
928
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
929 extrablob = buf_new(2000);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
930 buf_putmpint(extrablob, &dmp1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
931 buf_putmpint(extrablob, &dmq1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
932 buf_putmpint(extrablob, &iqmp);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
933 buf_setpos(extrablob, 0);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
934 mp_clear(&dmp1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
935 mp_clear(&dmq1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
936 mp_clear(&iqmp);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
937 mp_clear(&tmpval);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
938
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
939 /* dmp1 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
940 numbers[6].bytes = buf_getint(extrablob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
941 numbers[6].start = buf_getptr(extrablob, numbers[6].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
942 buf_incrpos(extrablob, numbers[6].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
943
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
944 /* dmq1 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
945 numbers[7].bytes = buf_getint(extrablob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
946 numbers[7].start = buf_getptr(extrablob, numbers[7].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
947 buf_incrpos(extrablob, numbers[7].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
948
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
949 /* iqmp */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
950 numbers[8].bytes = buf_getint(extrablob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
951 numbers[8].start = buf_getptr(extrablob, numbers[8].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
952 buf_incrpos(extrablob, numbers[8].bytes);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
953
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
954 nnumbers = 9;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
955 header = "-----BEGIN RSA PRIVATE KEY-----\n";
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
956 footer = "-----END RSA PRIVATE KEY-----\n";
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
957 }
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
958 #endif /* DROPBEAR_RSA */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
959
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
960 #ifdef DROPBEAR_DSS
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
961 if (key->type == DROPBEAR_SIGNKEY_DSS) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
962
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
963 /* p */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
964 numbers[1].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
965 numbers[1].start = buf_getptr(keyblob, numbers[1].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
966 buf_incrpos(keyblob, numbers[1].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
967
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
968 /* q */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
969 numbers[2].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
970 numbers[2].start = buf_getptr(keyblob, numbers[2].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
971 buf_incrpos(keyblob, numbers[2].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
972
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
973 /* g */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
974 numbers[3].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
975 numbers[3].start = buf_getptr(keyblob, numbers[3].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
976 buf_incrpos(keyblob, numbers[3].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
977
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
978 /* y */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
979 numbers[4].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
980 numbers[4].start = buf_getptr(keyblob, numbers[4].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
981 buf_incrpos(keyblob, numbers[4].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
982
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
983 /* x */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
984 numbers[5].bytes = buf_getint(keyblob);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
985 numbers[5].start = buf_getptr(keyblob, numbers[5].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
986 buf_incrpos(keyblob, numbers[5].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
987
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
988 nnumbers = 6;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
989 header = "-----BEGIN DSA PRIVATE KEY-----\n";
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
990 footer = "-----END DSA PRIVATE KEY-----\n";
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
991 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
992 #endif /* DROPBEAR_DSS */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
993
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
994 /*
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
995 * Now count up the total size of the ASN.1 encoded integers,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
996 * so as to determine the length of the containing SEQUENCE.
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
997 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
998 len = 0;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
999 for (i = 0; i < nnumbers; i++) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1000 len += ber_write_id_len(NULL, 2, numbers[i].bytes, 0);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1001 len += numbers[i].bytes;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1002 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1003 seqlen = len;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1004 /* Now add on the SEQUENCE header. */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1005 len += ber_write_id_len(NULL, 16, seqlen, ASN1_CONSTRUCTED);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1006 /* Round up to the cipher block size, ensuring we have at least one
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1007 * byte of padding (see below). */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1008 outlen = len;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1009 if (passphrase)
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1010 outlen = (outlen+8) &~ 7;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1011
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1012 /*
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1013 * Now we know how big outblob needs to be. Allocate it.
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1014 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1015 outblob = (unsigned char*)m_malloc(outlen);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1016
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1017 /*
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1018 * And write the data into it.
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1019 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1020 pos = 0;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1021 pos += ber_write_id_len(outblob+pos, 16, seqlen, ASN1_CONSTRUCTED);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1022 for (i = 0; i < nnumbers; i++) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1023 pos += ber_write_id_len(outblob+pos, 2, numbers[i].bytes, 0);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1024 memcpy(outblob+pos, numbers[i].start, numbers[i].bytes);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1025 pos += numbers[i].bytes;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1026 }
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
1027 } /* end RSA and DSS handling */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1028
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1029 #ifdef DROPBEAR_ECDSA
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1030 if (key->type == DROPBEAR_SIGNKEY_ECDSA_NISTP256
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1031 || key->type == DROPBEAR_SIGNKEY_ECDSA_NISTP384
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1032 || key->type == DROPBEAR_SIGNKEY_ECDSA_NISTP521) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1033
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1034 /* SEC1 V2 appendix c.4
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1035 ECPrivateKey ::= SEQUENCE {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1036 version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1037 privateKey OCTET STRING,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1038 parameters [0] ECDomainParameters {{ SECGCurveNames }} OPTIONAL,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1039 publicKey [1] BIT STRING OPTIONAL
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1040 }
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1041 */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1042 buffer *seq_buf = buf_new(400);
846
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 845
diff changeset
1043 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, key->type);
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 845
diff changeset
1044 const long curve_size = (*eck)->dp->size;
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1045 int curve_oid_len = 0;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1046 const void* curve_oid = NULL;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1047 unsigned long pubkey_size = 2*curve_size+1;
867
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1048 unsigned int k_size;
1038
d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 1002
diff changeset
1049 int err = 0;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1050
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1051 /* version. less than 10 bytes */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1052 buf_incrwritepos(seq_buf,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1053 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 2, 1, 0));
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1054 buf_putbyte(seq_buf, 1);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1055
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1056 /* privateKey */
867
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1057 k_size = mp_unsigned_bin_size((*eck)->k);
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1058 dropbear_assert(k_size <= curve_size);
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1059 buf_incrwritepos(seq_buf,
867
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1060 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 4, k_size, 0));
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1061 mp_to_unsigned_bin((*eck)->k, buf_getwriteptr(seq_buf, k_size));
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1062 buf_incrwritepos(seq_buf, k_size);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1063
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1064 /* SECGCurveNames */
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1065 switch (key->type)
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1066 {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1067 case DROPBEAR_SIGNKEY_ECDSA_NISTP256:
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1068 curve_oid_len = sizeof(OID_SEC256R1_BLOB);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1069 curve_oid = OID_SEC256R1_BLOB;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1070 break;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1071 case DROPBEAR_SIGNKEY_ECDSA_NISTP384:
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1072 curve_oid_len = sizeof(OID_SEC384R1_BLOB);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1073 curve_oid = OID_SEC384R1_BLOB;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1074 break;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1075 case DROPBEAR_SIGNKEY_ECDSA_NISTP521:
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1076 curve_oid_len = sizeof(OID_SEC521R1_BLOB);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1077 curve_oid = OID_SEC521R1_BLOB;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1078 break;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1079 default:
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1080 dropbear_exit("Internal error");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1081 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1082
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1083 buf_incrwritepos(seq_buf,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1084 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 0, 2+curve_oid_len, 0xa0));
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 849
diff changeset
1085 /* object == 6 */
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1086 buf_incrwritepos(seq_buf,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1087 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 6, curve_oid_len, 0));
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1088 buf_putbytes(seq_buf, curve_oid, curve_oid_len);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1089
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1090 buf_incrwritepos(seq_buf,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1091 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 1, 2+1+pubkey_size, 0xa0));
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1092 buf_incrwritepos(seq_buf,
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1093 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 3, 1+pubkey_size, 0));
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1094 buf_putbyte(seq_buf, 0);
1038
d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 1002
diff changeset
1095 err = ecc_ansi_x963_export(*eck, buf_getwriteptr(seq_buf, pubkey_size), &pubkey_size);
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1096 if (err != CRYPT_OK) {
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1097 dropbear_exit("ECC error");
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1098 }
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1099 buf_incrwritepos(seq_buf, pubkey_size);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1100
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1101 buf_setpos(seq_buf, 0);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1102
867
d2d624c951ca - Increase buffer size, fixes converting 521bit ECC key
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
1103 outblob = (unsigned char*)m_malloc(1000);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1104
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1105 pos = 0;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1106 pos += ber_write_id_len(outblob+pos, 16, seq_buf->len, ASN1_CONSTRUCTED);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1107 memcpy(&outblob[pos], seq_buf->data, seq_buf->len);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1108 pos += seq_buf->len;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1109 len = pos;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1110 outlen = len;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1111
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1112 buf_burn(seq_buf);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1113 buf_free(seq_buf);
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1114 seq_buf = NULL;
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1115
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1116 header = "-----BEGIN EC PRIVATE KEY-----\n";
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1117 footer = "-----END EC PRIVATE KEY-----\n";
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1118 }
836
d7d9f1612d51 writing out openssh ecc keys works
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
1119 #endif
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1120
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1121 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1122 * Padding on OpenSSH keys is deterministic. The number of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1123 * padding bytes is always more than zero, and always at most
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1124 * the cipher block length. The value of each padding byte is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1125 * equal to the number of padding bytes. So a plaintext that's
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1126 * an exact multiple of the block size will be padded with 08
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1127 * 08 08 08 08 08 08 08 (assuming a 64-bit block cipher); a
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1128 * plaintext one byte less than a multiple of the block size
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1129 * will be padded with just 01.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1130 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1131 * This enables the OpenSSL key decryption function to strip
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1132 * off the padding algorithmically and return the unpadded
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1133 * plaintext to the next layer: it looks at the final byte, and
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1134 * then expects to find that many bytes at the end of the data
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1135 * with the same value. Those are all removed and the rest is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1136 * returned.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1137 */
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 87
diff changeset
1138 dropbear_assert(pos == len);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1139 while (pos < outlen) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1140 outblob[pos++] = outlen - len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1141 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1142
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1143 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1144 * Encrypt the key.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1145 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1146 if (passphrase) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1147 fprintf(stderr, "Encrypted keys aren't supported currently\n");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1148 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1149 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1150
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1151 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1152 * And save it. We'll use Unix line endings just in case it's
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1153 * subsequently transferred in binary mode.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1154 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1155 if (strlen(filename) == 1 && filename[0] == '-') {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1156 fp = stdout;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1157 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1158 fp = fopen(filename, "wb"); /* ensure Unix line endings */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1159 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1160 if (!fp) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1161 fprintf(stderr, "Failed opening output file\n");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1162 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1163 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1164 fputs(header, fp);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1165 base64_encode_fp(fp, outblob, outlen, 64);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1166 fputs(footer, fp);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1167 fclose(fp);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1168 ret = 1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1169
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1170 error:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1171 if (outblob) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1172 memset(outblob, 0, outlen);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1173 m_free(outblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1174 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1175 if (keyblob) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1176 buf_burn(keyblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1177 buf_free(keyblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1178 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1179 if (extrablob) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1180 buf_burn(extrablob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1181 buf_free(extrablob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1182 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1183 return ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1184 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1185
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1186 #if 0
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1187 /* XXX TODO ssh.com stuff isn't going yet */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1188
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1189 /* ----------------------------------------------------------------------
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1190 * Code to read ssh.com private keys.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1191 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1192
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1193 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1194 * The format of the base64 blob is largely ssh2-packet-formatted,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1195 * except that mpints are a bit different: they're more like the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1196 * old ssh1 mpint. You have a 32-bit bit count N, followed by
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1197 * (N+7)/8 bytes of data.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1198 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1199 * So. The blob contains:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1200 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1201 * - uint32 0x3f6ff9eb (magic number)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1202 * - uint32 size (total blob size)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1203 * - string key-type (see below)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1204 * - string cipher-type (tells you if key is encrypted)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1205 * - string encrypted-blob
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1206 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1207 * (The first size field includes the size field itself and the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1208 * magic number before it. All other size fields are ordinary ssh2
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1209 * strings, so the size field indicates how much data is to
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1210 * _follow_.)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1211 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1212 * The encrypted blob, once decrypted, contains a single string
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1213 * which in turn contains the payload. (This allows padding to be
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1214 * added after that string while still making it clear where the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1215 * real payload ends. Also it probably makes for a reasonable
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1216 * decryption check.)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1217 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1218 * The payload blob, for an RSA key, contains:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1219 * - mpint e
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1220 * - mpint d
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1221 * - mpint n (yes, the public and private stuff is intermixed)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1222 * - mpint u (presumably inverse of p mod q)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1223 * - mpint p (p is the smaller prime)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1224 * - mpint q (q is the larger)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1225 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1226 * For a DSA key, the payload blob contains:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1227 * - uint32 0
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1228 * - mpint p
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1229 * - mpint g
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1230 * - mpint q
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1231 * - mpint y
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1232 * - mpint x
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1233 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1234 * Alternatively, if the parameters are `predefined', that
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1235 * (0,p,g,q) sequence can be replaced by a uint32 1 and a string
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1236 * containing some predefined parameter specification. *shudder*,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1237 * but I doubt we'll encounter this in real life.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1238 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1239 * The key type strings are ghastly. The RSA key I looked at had a
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1240 * type string of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1241 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1242 * `if-modn{sign{rsa-pkcs1-sha1},encrypt{rsa-pkcs1v2-oaep}}'
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1243 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1244 * and the DSA key wasn't much better:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1245 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1246 * `dl-modp{sign{dsa-nist-sha1},dh{plain}}'
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1247 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1248 * It isn't clear that these will always be the same. I think it
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1249 * might be wise just to look at the `if-modn{sign{rsa' and
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1250 * `dl-modp{sign{dsa' prefixes.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1251 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1252 * Finally, the encryption. The cipher-type string appears to be
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1253 * either `none' or `3des-cbc'. Looks as if this is SSH2-style
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1254 * 3des-cbc (i.e. outer cbc rather than inner). The key is created
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1255 * from the passphrase by means of yet another hashing faff:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1256 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1257 * - first 16 bytes are MD5(passphrase)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1258 * - next 16 bytes are MD5(passphrase || first 16 bytes)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1259 * - if there were more, they'd be MD5(passphrase || first 32),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1260 * and so on.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1261 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1262
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1263 #define SSHCOM_MAGIC_NUMBER 0x3f6ff9eb
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1264
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1265 struct sshcom_key {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1266 char comment[256]; /* allowing any length is overkill */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1267 unsigned char *keyblob;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1268 int keyblob_len, keyblob_size;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1269 };
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1270
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1271 static struct sshcom_key *load_sshcom_key(const char *filename)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1272 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1273 struct sshcom_key *ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1274 FILE *fp;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1275 char buffer[256];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1276 int len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1277 char *errmsg, *p;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1278 int headers_done;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1279 char base64_bit[4];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1280 int base64_chars = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1281
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1282 ret = snew(struct sshcom_key);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1283 ret->comment[0] = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1284 ret->keyblob = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1285 ret->keyblob_len = ret->keyblob_size = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1286
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1287 fp = fopen(filename, "r");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1288 if (!fp) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1289 errmsg = "Unable to open key file";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1290 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1291 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1292 if (!fgets(buffer, sizeof(buffer), fp) ||
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1293 0 != strcmp(buffer, "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----\n")) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1294 errmsg = "File does not begin with ssh.com key header";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1295 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1296 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1297
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1298 headers_done = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1299 while (1) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1300 if (!fgets(buffer, sizeof(buffer), fp)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1301 errmsg = "Unexpected end of file";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1302 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1303 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1304 if (!strcmp(buffer, "---- END SSH2 ENCRYPTED PRIVATE KEY ----\n"))
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1305 break; /* done */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1306 if ((p = strchr(buffer, ':')) != NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1307 if (headers_done) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1308 errmsg = "Header found in body of key data";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1309 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1310 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1311 *p++ = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1312 while (*p && isspace((unsigned char)*p)) p++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1313 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1314 * Header lines can end in a trailing backslash for
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1315 * continuation.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1316 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1317 while ((len = strlen(p)) > (int)(sizeof(buffer) - (p-buffer) -1) ||
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1318 p[len-1] != '\n' || p[len-2] == '\\') {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1319 if (len > (int)((p-buffer) + sizeof(buffer)-2)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1320 errmsg = "Header line too long to deal with";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1321 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1322 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1323 if (!fgets(p+len-2, sizeof(buffer)-(p-buffer)-(len-2), fp)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1324 errmsg = "Unexpected end of file";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1325 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1326 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1327 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1328 p[strcspn(p, "\n")] = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1329 if (!strcmp(buffer, "Comment")) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1330 /* Strip quotes in comment if present. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1331 if (p[0] == '"' && p[strlen(p)-1] == '"') {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1332 p++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1333 p[strlen(p)-1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1334 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1335 strncpy(ret->comment, p, sizeof(ret->comment));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1336 ret->comment[sizeof(ret->comment)-1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1337 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1338 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1339 headers_done = 1;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1340
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1341 p = buffer;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1342 while (isbase64(*p)) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1343 base64_bit[base64_chars++] = *p;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1344 if (base64_chars == 4) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1345 unsigned char out[3];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1346
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1347 base64_chars = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1348
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1349 len = base64_decode_atom(base64_bit, out);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1350
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1351 if (len <= 0) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1352 errmsg = "Invalid base64 encoding";
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1353 goto error;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1354 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1355
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1356 if (ret->keyblob_len + len > ret->keyblob_size) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt&