dropbear: signkey.c annotate

annotate signkey.c @ 121:9337c9f9a607 private-rez

PAM improvements

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 14 Sep 2004 12:51:16 +0000
parents	d3eb1fa8484e
children	0cfba3034be5

rev	line source
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #include "dbutil.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #include "signkey.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #include "buffer.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "ssh.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 /* malloc a new sign_key and set the dss and rsa keys to NULL */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 sign_key * new_sign_key() {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 sign_key * ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 ret = (sign_key*)m_malloc(sizeof(sign_key));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #ifdef DROPBEAR_DSS
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 ret->dsskey = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 ret->rsakey = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	47 /* Returns "ssh-dss" or "ssh-rsa" corresponding to the type. Exits fatally
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	48 * if the type is invalid */
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	49 const char* signkey_name_from_type(int type, int *namelen) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	50
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	51 #ifdef DROPBEAR_RSA
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	52 if (type == DROPBEAR_SIGNKEY_RSA) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	53 *namelen = SSH_SIGNKEY_RSA_LEN;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	54 return SSH_SIGNKEY_RSA;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	55 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	56 #endif
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	57 #ifdef DROPBEAR_DSS
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	58 if (type == DROPBEAR_SIGNKEY_DSS) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	59 *namelen = SSH_SIGNKEY_DSS_LEN;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	60 return SSH_SIGNKEY_DSS;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	61 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	62 #endif
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	63 dropbear_exit("bad key type %d", type);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	64 return NULL; /* notreached */
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	65 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	66
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	67 /* Returns DROPBEAR_SIGNKEY_RSA, DROPBEAR_SIGNKEY_DSS,
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	68 * or DROPBEAR_SIGNKEY_NONE */
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	69 int signkey_type_from_name(const char* name, int namelen) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	70
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	71 #ifdef DROPBEAR_RSA
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	72 if (namelen == SSH_SIGNKEY_RSA_LEN
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	73 && memcmp(name, SSH_SIGNKEY_RSA, SSH_SIGNKEY_RSA_LEN) == 0) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	74 return DROPBEAR_SIGNKEY_RSA;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	75 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	76 #endif
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	77 #ifdef DROPBEAR_DSS
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	78 if (namelen == SSH_SIGNKEY_DSS_LEN
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	79 && memcmp(name, SSH_SIGNKEY_DSS, SSH_SIGNKEY_DSS_LEN) == 0) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	80 return DROPBEAR_SIGNKEY_DSS;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	81 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	82 #endif
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	83
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	84 return DROPBEAR_SIGNKEY_NONE;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	85 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	86
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 /* returns DROPBEAR_SUCCESS on success, DROPBEAR_FAILURE on fail.
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	88 * type should be set by the caller to specify the type to read, and
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	89 * on return is set to the type read (useful when type = _ANY) */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 int buf_get_pub_key(buffer buf, sign_key key, int *type) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 unsigned char* ident;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 unsigned int len;
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	94 int keytype;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	95 int ret = DROPBEAR_FAILURE;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
34 e2a1eaa19f22 Client mostly works up to password auth Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	97 TRACE(("enter buf_get_pub_key"));
e2a1eaa19f22 Client mostly works up to password auth Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	98
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 ident = buf_getstring(buf, &len);
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	100 keytype = signkey_type_from_name(ident, len);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	101 m_free(ident);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	103 if (type != DROPBEAR_SIGNKEY_ANY && type != keytype) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	104 return DROPBEAR_FAILURE;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	105 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	106
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	107 *type = keytype;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	108
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	109 /* Rewind the buffer back before "ssh-rsa" etc */
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	110 buf_incrpos(buf, -len - 4);
34 e2a1eaa19f22 Client mostly works up to password auth Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	111
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 #ifdef DROPBEAR_DSS
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	113 if (keytype == DROPBEAR_SIGNKEY_DSS) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 dss_key_free(key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 key->dsskey = (dss_key*)m_malloc(sizeof(dss_key));
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	116 ret = buf_get_dss_pub_key(buf, key->dsskey);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	117 if (ret == DROPBEAR_FAILURE) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	118 m_free(key->dsskey);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	119 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 #ifdef DROPBEAR_RSA
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	123 if (keytype == DROPBEAR_SIGNKEY_RSA) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 rsa_key_free(key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 key->rsakey = (rsa_key*)m_malloc(sizeof(rsa_key));
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	126 ret = buf_get_rsa_pub_key(buf, key->rsakey);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	127 if (ret == DROPBEAR_FAILURE) {
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	128 m_free(key->rsakey);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	129 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	133 TRACE(("leave buf_get_pub_key"));
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	135 return ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	139 /* returns DROPBEAR_SUCCESS on success, DROPBEAR_FAILURE on fail.
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	140 * type should be set by the caller to specify the type to read, and
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	141 * on return is set to the type read (useful when type = _ANY) */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 int buf_get_priv_key(buffer buf, sign_key key, int *type) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 unsigned char* ident;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 unsigned int len;
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	146 int keytype;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	147 int ret = DROPBEAR_FAILURE;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 TRACE(("enter buf_get_priv_key"));
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	150
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 ident = buf_getstring(buf, &len);
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	152 keytype = signkey_type_from_name(ident, len);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	153 m_free(ident);
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	154
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	155 if (type != DROPBEAR_SIGNKEY_ANY && type != keytype) {
107 d3eb1fa8484e Nasty. Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	156 TRACE(("wrong key type: %d %d", *type, keytype));
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	157 return DROPBEAR_FAILURE;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	158 }
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	159
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	160 *type = keytype;
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	161
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	162 /* Rewind the buffer back before "ssh-rsa" etc */
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	163 buf_incrpos(buf, -len - 4);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 #ifdef DROPBEAR_DSS
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	166 if (keytype == DROPBEAR_SIGNKEY_DSS) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 dss_key_free(key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 key->dsskey = (dss_key*)m_malloc(sizeof(dss_key));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 ret = buf_get_dss_priv_key(buf, key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 if (ret == DROPBEAR_FAILURE) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 m_free(key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 #ifdef DROPBEAR_RSA
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	176 if (keytype == DROPBEAR_SIGNKEY_RSA) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 rsa_key_free(key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 key->rsakey = (rsa_key*)m_malloc(sizeof(rsa_key));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 ret = buf_get_rsa_priv_key(buf, key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 if (ret == DROPBEAR_FAILURE) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 m_free(key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 TRACE(("leave buf_get_priv_key"));
44 45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	187
45edf30ea0a6 Improved signkey code Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	188 return ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 /* type is either DROPBEAR_SIGNKEY_DSS or DROPBEAR_SIGNKEY_RSA */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 void buf_put_pub_key(buffer* buf, sign_key *key, int type) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 buffer *pubkeys;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 TRACE(("enter buf_put_pub_key"));
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	198 pubkeys = buf_new(MAX_PUBKEY_SIZE);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 #ifdef DROPBEAR_DSS
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 if (type == DROPBEAR_SIGNKEY_DSS) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 buf_put_dss_pub_key(pubkeys, key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 if (type == DROPBEAR_SIGNKEY_RSA) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 buf_put_rsa_pub_key(pubkeys, key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 if (pubkeys->len == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 dropbear_exit("bad key types in buf_put_pub_key");
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 buf_setpos(pubkeys, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 buf_putstring(buf, buf_getptr(pubkeys, pubkeys->len),
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 pubkeys->len);
fe6bca95afa7 Makefile.in contains updated files required 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 buf_free(pubkeys);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 TRACE(("leave buf_put_pub_key"));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 }
fe6bca95afa7 Makefile.in contains updated files required 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 /* type is either DROPBEAR_SIGNKEY_DSS or DROPBEAR_SIGNKEY_RSA */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 void buf_put_priv_key(buffer* buf, sign_key *key, int type) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 TRACE(("enter buf_put_priv_key"));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 TRACE(("type is %d", type));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 #ifdef DROPBEAR_DSS
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 if (type == DROPBEAR_SIGNKEY_DSS) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 buf_put_dss_priv_key(buf, key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 TRACE(("leave buf_put_priv_key: dss done"));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 if (type == DROPBEAR_SIGNKEY_RSA) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 buf_put_rsa_priv_key(buf, key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 TRACE(("leave buf_put_priv_key: rsa done"));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 dropbear_exit("bad key types in put pub key");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245 void sign_key_free(sign_key *key) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 TRACE(("enter sign_key_free"));
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 #ifdef DROPBEAR_DSS
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250 dss_key_free(key->dsskey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 key->dsskey = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 rsa_key_free(key->rsakey);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 key->rsakey = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 m_free(key);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 TRACE(("leave sign_key_free"));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262 static char hexdig(unsigned char x) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 if (x > 0xf)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 return 'X';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 if (x < 10)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268 return '0' + x;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 return 'a' + x - 10;
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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 /* Since we're not sure if we'll have md5 or sha1, we present both.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 * MD5 is used in preference, but sha1 could still be useful */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 #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	276 static char * sign_key_md5_fingerprint(unsigned char* keyblob,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 44 diff changeset	277 unsigned int keybloblen) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 char * ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 hash_state hs;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 unsigned char hash[MD5_HASH_SIZE];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 unsigned int h, i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 unsigned int buflen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 md5_init(&hs);
fe6bca95afa7 Makefile.in contains updated files required 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 /* 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	288 md5_process(&hs, keyblob, keybloblen);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 md5_done(&hs, hash);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 /* "md5 hexfingerprinthere\0", each hex digit is "AB:" etc */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 buflen = 4 + 3*MD5_HASH_SIZE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 ret = (char*)m_malloc(buflen);
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 memset(ret, 'Z', buflen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297 strcpy(ret, "md5 ");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 for (i = 4, h = 0; i < buflen; i+=3, h++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 ret[i] = hexdig(hash[h] >> 4);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 ret[i+1] = hexdig(hash[h] & 0x0f);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 ret[i+2] = ':';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 ret[buflen-1] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 }
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 #else /* use SHA1 rather than MD5 for fingerprint */
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 44 diff changeset	310 static char * sign_key_sha1_fingerprint(unsigned char* keyblob,
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 44 diff changeset	311 unsigned int keybloblen) {
4 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 char * ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 hash_state hs;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315 unsigned char hash[SHA1_HASH_SIZE];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 unsigned int h, i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 unsigned int buflen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 sha1_init(&hs);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321 /* 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	322 sha1_process(&hs, keyblob, keybloblen);
4 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 sha1_done(&hs, hash);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 /* "sha1 hexfingerprinthere\0", each hex digit is "AB:" etc */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327 buflen = 5 + 3*SHA1_HASH_SIZE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 ret = (char*)m_malloc(buflen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330 strcpy(ret, "sha1 ");
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 for (i = 5, h = 0; i < buflen; i+=3, h++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333 ret[i] = hexdig(hash[h] >> 4);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 ret[i+1] = hexdig(hash[h] & 0x0f);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 ret[i+2] = ':';
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 ret[buflen-1] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 return ret;
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 #endif /* MD5/SHA1 switch */
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 /* This will return a freshly malloced string, containing a fingerprint

Mercurial > dropbear

annotate signkey.c @ 121:9337c9f9a607 private-rez