annotate signkey.c @ 1036:deed0571cacc

DROPBEAR_ prefix for include guards to avoid collisions
author Thorsten Horstmann <thorsten.horstmann@web.de>
date Tue, 24 Feb 2015 20:43:01 +0800
parents 25692c60479e
children 0da8ba489c23
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #include "includes.h"
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26 #include "dbutil.h"
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27 #include "signkey.h"
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28 #include "buffer.h"
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29 #include "ssh.h"
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30 #include "ecdsa.h"
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31
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32 static const char *signkey_names[DROPBEAR_SIGNKEY_NUM_NAMED] = {
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33 #ifdef DROPBEAR_RSA
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34 "ssh-rsa",
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35 #endif
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36 #ifdef DROPBEAR_DSS
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37 "ssh-dss",
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38 #endif
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39 #ifdef DROPBEAR_ECDSA
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40 "ecdsa-sha2-nistp256",
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41 "ecdsa-sha2-nistp384",
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42 "ecdsa-sha2-nistp521"
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43 #endif /* DROPBEAR_ECDSA */
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44 };
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45
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46 /* malloc a new sign_key and set the dss and rsa keys to NULL */
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47 sign_key * new_sign_key() {
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48
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49 sign_key * ret;
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50
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51 ret = (sign_key*)m_malloc(sizeof(sign_key));
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52 ret->type = DROPBEAR_SIGNKEY_NONE;
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53 ret->source = SIGNKEY_SOURCE_INVALID;
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54 return ret;
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55 }
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56
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57 /* Returns key name corresponding to the type. Exits fatally
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58 * if the type is invalid */
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59 const char* signkey_name_from_type(enum signkey_type type, unsigned int *namelen) {
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60 if (type >= DROPBEAR_SIGNKEY_NUM_NAMED) {
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61 dropbear_exit("Bad key type %d", type);
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62 }
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63
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64 if (namelen) {
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65 *namelen = strlen(signkey_names[type]);
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66 }
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67 return signkey_names[type];
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68 }
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69
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70 /* Returns DROPBEAR_SIGNKEY_NONE if none match */
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71 enum signkey_type signkey_type_from_name(const char* name, unsigned int namelen) {
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72 int i;
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73 for (i = 0; i < DROPBEAR_SIGNKEY_NUM_NAMED; i++) {
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74 const char *fixed_name = signkey_names[i];
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75 if (namelen == strlen(fixed_name)
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76 && memcmp(fixed_name, name, namelen) == 0) {
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77
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78 #ifdef DROPBEAR_ECDSA
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79 /* Some of the ECDSA key sizes are defined even if they're not compiled in */
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80 if (0
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81 #ifndef DROPBEAR_ECC_256
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82 || i == DROPBEAR_SIGNKEY_ECDSA_NISTP256
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83 #endif
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84 #ifndef DROPBEAR_ECC_384
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85 || i == DROPBEAR_SIGNKEY_ECDSA_NISTP384
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86 #endif
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87 #ifndef DROPBEAR_ECC_521
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88 || i == DROPBEAR_SIGNKEY_ECDSA_NISTP521
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89 #endif
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90 ) {
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91 TRACE(("attempt to use ecdsa type %d not compiled in", i))
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92 return DROPBEAR_SIGNKEY_NONE;
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93 }
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94 #endif
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95
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96 return i;
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97 }
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98 }
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99
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100 TRACE(("signkey_type_from_name unexpected key type."))
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101
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102 return DROPBEAR_SIGNKEY_NONE;
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103 }
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104
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105 /* Returns a pointer to the key part specific to "type" */
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106 void **
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107 signkey_key_ptr(sign_key *key, enum signkey_type type) {
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108 switch (type) {
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109 #ifdef DROPBEAR_ECDSA
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110 #ifdef DROPBEAR_ECC_256
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111 case DROPBEAR_SIGNKEY_ECDSA_NISTP256:
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112 return (void**)&key->ecckey256;
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113 #endif
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114 #ifdef DROPBEAR_ECC_384
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115 case DROPBEAR_SIGNKEY_ECDSA_NISTP384:
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116 return (void**)&key->ecckey384;
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117 #endif
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118 #ifdef DROPBEAR_ECC_521
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119 case DROPBEAR_SIGNKEY_ECDSA_NISTP521:
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120 return (void**)&key->ecckey521;
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121 #endif
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122 #endif /* DROPBEAR_ECDSA */
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123 #ifdef DROPBEAR_RSA
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124 case DROPBEAR_SIGNKEY_RSA:
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125 return (void**)&key->rsakey;
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126 #endif
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127 #ifdef DROPBEAR_DSS
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128 case DROPBEAR_SIGNKEY_DSS:
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129 return (void**)&key->dsskey;
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130 #endif
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131 default:
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132 return NULL;
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133 }
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134 }
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135
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136 /* returns DROPBEAR_SUCCESS on success, DROPBEAR_FAILURE on fail.
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137 * type should be set by the caller to specify the type to read, and
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138 * on return is set to the type read (useful when type = _ANY) */
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139 int buf_get_pub_key(buffer *buf, sign_key *key, enum signkey_type *type) {
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140
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141 unsigned char* ident;
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142 unsigned int len;
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143 int keytype;
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144 int ret = DROPBEAR_FAILURE;
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145
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146 TRACE2(("enter buf_get_pub_key"))
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147
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148 ident = buf_getstring(buf, &len);
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149 keytype = signkey_type_from_name(ident, len);
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150 m_free(ident);
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151
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152 if (*type != DROPBEAR_SIGNKEY_ANY && *type != keytype) {
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153 TRACE(("buf_get_pub_key bad type - got %d, expected %d", keytype, *type))
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154 return DROPBEAR_FAILURE;
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155 }
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156
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157 TRACE2(("buf_get_pub_key keytype is %d", keytype))
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158
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159 *type = keytype;
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160
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161 /* Rewind the buffer back before "ssh-rsa" etc */
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162 buf_incrpos(buf, -len - 4);
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163
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164 #ifdef DROPBEAR_DSS
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165 if (keytype == DROPBEAR_SIGNKEY_DSS) {
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166 dss_key_free(key->dsskey);
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167 key->dsskey = m_malloc(sizeof(*key->dsskey));
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168 ret = buf_get_dss_pub_key(buf, key->dsskey);
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169 if (ret == DROPBEAR_FAILURE) {
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170 m_free(key->dsskey);
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171 }
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172 }
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173 #endif
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174 #ifdef DROPBEAR_RSA
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175 if (keytype == DROPBEAR_SIGNKEY_RSA) {
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176 rsa_key_free(key->rsakey);
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177 key->rsakey = m_malloc(sizeof(*key->rsakey));
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178 ret = buf_get_rsa_pub_key(buf, key->rsakey);
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179 if (ret == DROPBEAR_FAILURE) {
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180 m_free(key->rsakey);
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181 }
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182 }
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183 #endif
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184 #ifdef DROPBEAR_ECDSA
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185 if (signkey_is_ecdsa(keytype)) {
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186 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, keytype);
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187 if (eck) {
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188 if (*eck) {
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189 ecc_free(*eck);
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190 *eck = NULL;
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191 }
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192 *eck = buf_get_ecdsa_pub_key(buf);
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193 if (*eck) {
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194 ret = DROPBEAR_SUCCESS;
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195 }
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196 }
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197 }
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198 #endif
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199
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200 TRACE2(("leave buf_get_pub_key"))
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201
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202 return ret;
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203
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204 }
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205
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206 /* returns DROPBEAR_SUCCESS on success, DROPBEAR_FAILURE on fail.
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207 * type should be set by the caller to specify the type to read, and
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208 * on return is set to the type read (useful when type = _ANY) */
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209 int buf_get_priv_key(buffer *buf, sign_key *key, enum signkey_type *type) {
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210
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211 unsigned char* ident;
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212 unsigned int len;
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213 int keytype;
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214 int ret = DROPBEAR_FAILURE;
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215
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216 TRACE2(("enter buf_get_priv_key"))
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217
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218 ident = buf_getstring(buf, &len);
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219 keytype = signkey_type_from_name(ident, len);
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220 m_free(ident);
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221
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222 if (*type != DROPBEAR_SIGNKEY_ANY && *type != keytype) {
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223 TRACE(("wrong key type: %d %d", *type, keytype))
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224 return DROPBEAR_FAILURE;
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225 }
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226
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227 *type = keytype;
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228
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229 /* Rewind the buffer back before "ssh-rsa" etc */
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230 buf_incrpos(buf, -len - 4);
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231
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232 #ifdef DROPBEAR_DSS
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233 if (keytype == DROPBEAR_SIGNKEY_DSS) {
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234 dss_key_free(key->dsskey);
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235 key->dsskey = m_malloc(sizeof(*key->dsskey));
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236 ret = buf_get_dss_priv_key(buf, key->dsskey);
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237 if (ret == DROPBEAR_FAILURE) {
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238 m_free(key->dsskey);
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239 }
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240 }
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241 #endif
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242 #ifdef DROPBEAR_RSA
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243 if (keytype == DROPBEAR_SIGNKEY_RSA) {
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244 rsa_key_free(key->rsakey);
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245 key->rsakey = m_malloc(sizeof(*key->rsakey));
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246 ret = buf_get_rsa_priv_key(buf, key->rsakey);
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247 if (ret == DROPBEAR_FAILURE) {
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248 m_free(key->rsakey);
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249 }
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250 }
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251 #endif
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252 #ifdef DROPBEAR_ECDSA
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253 if (signkey_is_ecdsa(keytype)) {
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254 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, keytype);
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255 if (eck) {
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diff changeset
256 if (*eck) {
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diff changeset
257 ecc_free(*eck);
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258 *eck = NULL;
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259 }
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260 *eck = buf_get_ecdsa_priv_key(buf);
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261 if (*eck) {
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262 ret = DROPBEAR_SUCCESS;
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263 }
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264 }
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265 }
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266 #endif
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267
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268 TRACE2(("leave buf_get_priv_key"))
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269
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270 return ret;
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271
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272 }
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273
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274 /* type is either DROPBEAR_SIGNKEY_DSS or DROPBEAR_SIGNKEY_RSA */
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275 void buf_put_pub_key(buffer* buf, sign_key *key, enum signkey_type type) {
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276
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277 buffer *pubkeys;
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278
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279 TRACE2(("enter buf_put_pub_key"))
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diff changeset
280 pubkeys = buf_new(MAX_PUBKEY_SIZE);
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281
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282 #ifdef DROPBEAR_DSS
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283 if (type == DROPBEAR_SIGNKEY_DSS) {
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284 buf_put_dss_pub_key(pubkeys, key->dsskey);
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285 }
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286 #endif
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287 #ifdef DROPBEAR_RSA
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288 if (type == DROPBEAR_SIGNKEY_RSA) {
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289 buf_put_rsa_pub_key(pubkeys, key->rsakey);
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290 }
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291 #endif
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292 #ifdef DROPBEAR_ECDSA
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293 if (signkey_is_ecdsa(type)) {
841
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diff changeset
294 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, type);
807
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295 if (eck) {
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296 buf_put_ecdsa_pub_key(pubkeys, *eck);
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297 }
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298 }
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299 #endif
4
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300 if (pubkeys->len == 0) {
594
a98a2138364a Improve capitalisation for all logged strings
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diff changeset
301 dropbear_exit("Bad key types in buf_put_pub_key");
4
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302 }
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303
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
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304 buf_putbufstring(buf, pubkeys);
4
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305 buf_free(pubkeys);
731
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306 TRACE2(("leave buf_put_pub_key"))
4
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307 }
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308
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309 /* type is either DROPBEAR_SIGNKEY_DSS or DROPBEAR_SIGNKEY_RSA */
841
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diff changeset
310 void buf_put_priv_key(buffer* buf, sign_key *key, enum signkey_type type) {
4
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311
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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diff changeset
312 TRACE(("enter buf_put_priv_key"))
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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diff changeset
313 TRACE(("type is %d", type))
4
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314
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315 #ifdef DROPBEAR_DSS
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316 if (type == DROPBEAR_SIGNKEY_DSS) {
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317 buf_put_dss_priv_key(buf, key->dsskey);
165
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diff changeset
318 TRACE(("leave buf_put_priv_key: dss done"))
4
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319 return;
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320 }
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321 #endif
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322 #ifdef DROPBEAR_RSA
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323 if (type == DROPBEAR_SIGNKEY_RSA) {
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324 buf_put_rsa_priv_key(buf, key->rsakey);
165
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diff changeset
325 TRACE(("leave buf_put_priv_key: rsa done"))
4
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326 return;
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327 }
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328 #endif
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329 #ifdef DROPBEAR_ECDSA
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330 if (signkey_is_ecdsa(type)) {
841
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diff changeset
331 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, type);
807
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diff changeset
332 if (eck) {
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diff changeset
333 buf_put_ecdsa_priv_key(buf, *eck);
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parents: 801
diff changeset
334 TRACE(("leave buf_put_priv_key: ecdsa done"))
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diff changeset
335 return;
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diff changeset
336 }
794
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337 }
d386defb5376 more ecdsa signkey work, not correct
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diff changeset
338 #endif
594
a98a2138364a Improve capitalisation for all logged strings
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diff changeset
339 dropbear_exit("Bad key types in put pub key");
4
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340 }
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341
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342 void sign_key_free(sign_key *key) {
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343
731
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344 TRACE2(("enter sign_key_free"))
4
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345
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346 #ifdef DROPBEAR_DSS
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diff changeset
347 dss_key_free(key->dsskey);
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diff changeset
348 key->dsskey = NULL;
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diff changeset
349 #endif
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diff changeset
350 #ifdef DROPBEAR_RSA
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diff changeset
351 rsa_key_free(key->rsakey);
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352 key->rsakey = NULL;
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diff changeset
353 #endif
794
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diff changeset
354 #ifdef DROPBEAR_ECDSA
847
f4bb964c8678 Add '-R' for delayed hostkey option
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diff changeset
355 #ifdef DROPBEAR_ECC_256
807
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diff changeset
356 if (key->ecckey256) {
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parents: 801
diff changeset
357 ecc_free(key->ecckey256);
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diff changeset
358 key->ecckey256 = NULL;
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diff changeset
359 }
847
f4bb964c8678 Add '-R' for delayed hostkey option
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diff changeset
360 #endif
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diff changeset
361 #ifdef DROPBEAR_ECC_384
807
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parents: 801
diff changeset
362 if (key->ecckey384) {
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parents: 801
diff changeset
363 ecc_free(key->ecckey384);
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parents: 801
diff changeset
364 key->ecckey384 = NULL;
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diff changeset
365 }
847
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diff changeset
366 #endif
f4bb964c8678 Add '-R' for delayed hostkey option
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diff changeset
367 #ifdef DROPBEAR_ECC_521
807
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diff changeset
368 if (key->ecckey521) {
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parents: 801
diff changeset
369 ecc_free(key->ecckey521);
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diff changeset
370 key->ecckey521 = NULL;
794
d386defb5376 more ecdsa signkey work, not correct
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diff changeset
371 }
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diff changeset
372 #endif
847
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diff changeset
373 #endif
4
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374
551
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parents: 436
diff changeset
375 m_free(key->filename);
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
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parents: 436
diff changeset
376
4
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377 m_free(key);
731
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diff changeset
378 TRACE2(("leave sign_key_free"))
4
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379 }
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380
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diff changeset
381 static char hexdig(unsigned char x) {
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diff changeset
382 if (x > 0xf)
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diff changeset
383 return 'X';
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384
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diff changeset
385 if (x < 10)
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diff changeset
386 return '0' + x;
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diff changeset
387 else
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diff changeset
388 return 'a' + x - 10;
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diff changeset
389 }
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diff changeset
390
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diff changeset
391 /* Since we're not sure if we'll have md5 or sha1, we present both.
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diff changeset
392 * MD5 is used in preference, but sha1 could still be useful */
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diff changeset
393 #ifdef DROPBEAR_MD5_HMAC
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
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diff changeset
394 static char * sign_key_md5_fingerprint(unsigned char* keyblob,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
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parents: 44
diff changeset
395 unsigned int keybloblen) {
4
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diff changeset
396
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diff changeset
397 char * ret;
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diff changeset
398 hash_state hs;
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diff changeset
399 unsigned char hash[MD5_HASH_SIZE];
214
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
400 unsigned int i;
4
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diff changeset
401 unsigned int buflen;
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diff changeset
402
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diff changeset
403 md5_init(&hs);
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parents:
diff changeset
404
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diff changeset
405 /* skip the size int of the string - this is a bit messy */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
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parents: 44
diff changeset
406 md5_process(&hs, keyblob, keybloblen);
4
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diff changeset
407
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diff changeset
408 md5_done(&hs, hash);
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parents:
diff changeset
409
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parents:
diff changeset
410 /* "md5 hexfingerprinthere\0", each hex digit is "AB:" etc */
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parents:
diff changeset
411 buflen = 4 + 3*MD5_HASH_SIZE;
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parents:
diff changeset
412 ret = (char*)m_malloc(buflen);
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parents:
diff changeset
413
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parents:
diff changeset
414 memset(ret, 'Z', buflen);
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diff changeset
415 strcpy(ret, "md5 ");
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diff changeset
416
214
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
417 for (i = 0; i < MD5_HASH_SIZE; i++) {
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
418 unsigned int pos = 4 + i*3;
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
419 ret[pos] = hexdig(hash[i] >> 4);
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
420 ret[pos+1] = hexdig(hash[i] & 0x0f);
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
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parents: 165
diff changeset
421 ret[pos+2] = ':';
4
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parents:
diff changeset
422 }
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parents:
diff changeset
423 ret[buflen-1] = 0x0;
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parents:
diff changeset
424
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parents:
diff changeset
425 return ret;
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parents:
diff changeset
426 }
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parents:
diff changeset
427
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parents:
diff changeset
428 #else /* use SHA1 rather than MD5 for fingerprint */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
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parents: 44
diff changeset
429 static char * sign_key_sha1_fingerprint(unsigned char* keyblob,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
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parents: 44
diff changeset
430 unsigned int keybloblen) {
4
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parents:
diff changeset
431
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diff changeset
432 char * ret;
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diff changeset
433 hash_state hs;
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diff changeset
434 unsigned char hash[SHA1_HASH_SIZE];
214
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parents: 165
diff changeset
435 unsigned int i;
4
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parents:
diff changeset
436 unsigned int buflen;
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parents:
diff changeset
437
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parents:
diff changeset
438 sha1_init(&hs);
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parents:
diff changeset
439
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
440 /* skip the size int of the string - this is a bit messy */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
441 sha1_process(&hs, keyblob, keybloblen);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
442
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
443 sha1_done(&hs, hash);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
444
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
445 /* "sha1!! hexfingerprinthere\0", each hex digit is "AB:" etc */
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
446 buflen = 7 + 3*SHA1_HASH_SIZE;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
447 ret = (char*)m_malloc(buflen);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
448
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
449 strcpy(ret, "sha1!! ");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
450
214
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
451 for (i = 0; i < SHA1_HASH_SIZE; i++) {
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
452 unsigned int pos = 7 + 3*i;
214
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
453 ret[pos] = hexdig(hash[i] >> 4);
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
454 ret[pos+1] = hexdig(hash[i] & 0x0f);
5a75f8a21503 Change the format of for loops, gcc4 produces incorrect binaries with
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
455 ret[pos+2] = ':';
4
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 ret[buflen-1] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
458
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
459 return ret;
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 #endif /* MD5/SHA1 switch */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
463
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
464 /* This will return a freshly malloced string, containing a fingerprint
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
465 * in either sha1 or md5 */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
466 char * sign_key_fingerprint(unsigned char* keyblob, unsigned int keybloblen) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
467
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
468 #ifdef DROPBEAR_MD5_HMAC
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
469 return sign_key_md5_fingerprint(keyblob, keybloblen);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
470 #else
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
471 return sign_key_sha1_fingerprint(keyblob, keybloblen);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
472 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
473 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
474
841
d4ce5269a439 Fix specifying a keysize for key generation, fix key name arguments
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
475 void buf_put_sign(buffer* buf, sign_key *key, enum signkey_type type,
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
476 buffer *data_buf) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
477 buffer *sigblob;
70
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents: 51
diff changeset
478 sigblob = buf_new(MAX_PUBKEY_SIZE);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
479
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
480 #ifdef DROPBEAR_DSS
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
481 if (type == DROPBEAR_SIGNKEY_DSS) {
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
482 buf_put_dss_sign(sigblob, key->dsskey, data_buf);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
483 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
484 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
485 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
486 if (type == DROPBEAR_SIGNKEY_RSA) {
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
487 buf_put_rsa_sign(sigblob, key->rsakey, data_buf);
4
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 #endif
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
490 #ifdef DROPBEAR_ECDSA
846
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 841
diff changeset
491 if (signkey_is_ecdsa(type)) {
841
d4ce5269a439 Fix specifying a keysize for key generation, fix key name arguments
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
492 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, type);
807
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
493 if (eck) {
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
494 buf_put_ecdsa_sign(sigblob, *eck, data_buf);
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
495 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
496 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
497 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
498 if (sigblob->len == 0) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
499 dropbear_exit("Non-matching signing type");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
500 }
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
501 buf_putbufstring(buf, sigblob);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
502 buf_free(sigblob);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
503
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
504 }
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 #ifdef DROPBEAR_SIGNKEY_VERIFY
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
507 /* Return DROPBEAR_SUCCESS or DROPBEAR_FAILURE.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
508 * If FAILURE is returned, the position of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
509 * buf is undefined. If SUCCESS is returned, buf will be positioned after the
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
510 * signature blob */
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
511 int buf_verify(buffer * buf, sign_key *key, buffer *data_buf) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
512
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
513 unsigned char * type_name = NULL;
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
514 unsigned int type_name_len = 0;
855
04ede40a529a - Some fixes for old compilers like tru64 v4 from Daniel Richard G.
Matt Johnston <matt@ucc.asn.au>
parents: 852
diff changeset
515 enum signkey_type type;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
516
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
517 TRACE(("enter buf_verify"))
34
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 26
diff changeset
518
864
30ab30e46452 Fix some warnings
Matt Johnston <matt@ucc.asn.au>
parents: 857
diff changeset
519 buf_getint(buf); /* blob length */
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
520 type_name = buf_getstring(buf, &type_name_len);
855
04ede40a529a - Some fixes for old compilers like tru64 v4 from Daniel Richard G.
Matt Johnston <matt@ucc.asn.au>
parents: 852
diff changeset
521 type = signkey_type_from_name(type_name, type_name_len);
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
522 m_free(type_name);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
523
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
524 #ifdef DROPBEAR_DSS
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
525 if (type == DROPBEAR_SIGNKEY_DSS) {
244
eb7b9f2bb8e8 - add explicit check that correct keytype exists for pubkey verification
Matt Johnston <matt@ucc.asn.au>
parents: 214
diff changeset
526 if (key->dsskey == NULL) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
527 dropbear_exit("No DSS key to verify signature");
244
eb7b9f2bb8e8 - add explicit check that correct keytype exists for pubkey verification
Matt Johnston <matt@ucc.asn.au>
parents: 214
diff changeset
528 }
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
529 return buf_dss_verify(buf, key->dsskey, data_buf);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
530 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
531 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
532
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
533 #ifdef DROPBEAR_RSA
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
534 if (type == DROPBEAR_SIGNKEY_RSA) {
244
eb7b9f2bb8e8 - add explicit check that correct keytype exists for pubkey verification
Matt Johnston <matt@ucc.asn.au>
parents: 214
diff changeset
535 if (key->rsakey == NULL) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
536 dropbear_exit("No RSA key to verify signature");
244
eb7b9f2bb8e8 - add explicit check that correct keytype exists for pubkey verification
Matt Johnston <matt@ucc.asn.au>
parents: 214
diff changeset
537 }
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 651
diff changeset
538 return buf_rsa_verify(buf, key->rsakey, data_buf);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
539 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
540 #endif
794
d386defb5376 more ecdsa signkey work, not correct
Matt Johnston <matt@ucc.asn.au>
parents: 793
diff changeset
541 #ifdef DROPBEAR_ECDSA
846
b298bb438625 refactor key generation, make it generate as required.
Matt Johnston <matt@ucc.asn.au>
parents: 841
diff changeset
542 if (signkey_is_ecdsa(type)) {
841
d4ce5269a439 Fix specifying a keysize for key generation, fix key name arguments
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
543 ecc_key **eck = (ecc_key**)signkey_key_ptr(key, type);
807
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
544 if (eck) {
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
545 return buf_ecdsa_verify(buf, *eck, data_buf);
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
546 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
547 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
548 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
549
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
550 dropbear_exit("Non-matching signing type");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
551 return DROPBEAR_FAILURE;
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 #endif /* DROPBEAR_SIGNKEY_VERIFY */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
554
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
555 #ifdef DROPBEAR_KEY_LINES /* ie we're using authorized_keys or known_hosts */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
556
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
557 /* Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE when given a buffer containing
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
558 * a key, a key, and a type. The buffer is positioned at the start of the
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
559 * base64 data, and contains no trailing data */
436
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
560 /* If fingerprint is non-NULL, it will be set to a malloc()ed fingerprint
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
561 of the key if it is successfully decoded */
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
562 int cmp_base64_key(const unsigned char* keyblob, unsigned int keybloblen,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
563 const unsigned char* algoname, unsigned int algolen,
436
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
564 buffer * line, char ** fingerprint) {
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
565
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
566 buffer * decodekey = NULL;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
567 int ret = DROPBEAR_FAILURE;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
568 unsigned int len, filealgolen;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
569 unsigned long decodekeylen;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
570 unsigned char* filealgo = NULL;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
571
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
572 /* now we have the actual data */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
573 len = line->len - line->pos;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
574 decodekeylen = len * 2; /* big to be safe */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
575 decodekey = buf_new(decodekeylen);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
576
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
577 if (base64_decode(buf_getptr(line, len), len,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
578 buf_getwriteptr(decodekey, decodekey->size),
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
579 &decodekeylen) != CRYPT_OK) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
580 TRACE(("checkpubkey: base64 decode failed"))
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
581 goto out;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
582 }
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
583 TRACE(("checkpubkey: base64_decode success"))
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
584 buf_incrlen(decodekey, decodekeylen);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
585
436
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
586 if (fingerprint) {
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
587 *fingerprint = sign_key_fingerprint(buf_getptr(decodekey, decodekeylen),
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
588 decodekeylen);
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
589 }
7282370416a0 Improve known_hosts checking.
Matt Johnston <matt@ucc.asn.au>
parents: 244
diff changeset
590
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
591 /* compare the keys */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
592 if ( ( decodekeylen != keybloblen )
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
593 || memcmp( buf_getptr(decodekey, decodekey->len),
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
594 keyblob, decodekey->len) != 0) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
595 TRACE(("checkpubkey: compare failed"))
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
596 goto out;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
597 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
598
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
599 /* ... and also check that the algo specified and the algo in the key
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
600 * itself match */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
601 filealgolen = buf_getint(decodekey);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
602 filealgo = buf_getptr(decodekey, filealgolen);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
603 if (filealgolen != algolen || memcmp(filealgo, algoname, algolen) != 0) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
604 TRACE(("checkpubkey: algo match failed"))
51
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
605 goto out;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
606 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
607
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
608 /* All checks passed */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
609 ret = DROPBEAR_SUCCESS;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
610
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
611 out:
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
612 buf_free(decodekey);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
613 decodekey = NULL;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
614 return ret;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
615 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet.
Matt Johnston <matt@ucc.asn.au>
parents: 44
diff changeset
616 #endif