2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Markus Friedl.
15 * 4. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 # include <openssl/bn.h>
36 # include <openssl/evp.h>
43 #define KEX_DH1 "diffie-hellman-group1-sha1"
44 #define KEX_DSS "ssh-dss"
46 enum kex_init_proposals {
48 PROPOSAL_SERVER_HOST_KEY_ALGS,
49 PROPOSAL_ENC_ALGS_CTOS,
50 PROPOSAL_ENC_ALGS_STOC,
51 PROPOSAL_MAC_ALGS_CTOS,
52 PROPOSAL_MAC_ALGS_STOC,
53 PROPOSAL_COMP_ALGS_CTOS,
54 PROPOSAL_COMP_ALGS_STOC,
66 typedef struct Kex Kex;
67 typedef struct Mac Mac;
68 typedef struct Comp Comp;
69 typedef struct Enc Enc;
104 Buffer *kex_init(char *myproposal[PROPOSAL_MAX]);
105 int dh_pub_is_valid(DH *dh, BIGNUM *dh_pub);
107 Kex *kex_choose_conf(char *cprop[PROPOSAL_MAX], char *sprop[PROPOSAL_MAX], int server);
108 int kex_derive_keys(Kex *k, unsigned char *hash, BIGNUM *shared_secret);
109 void bignum_print(BIGNUM *b);
110 void packet_set_kex(Kex *k);
114 char *client_version_string,
115 char *server_version_string,
116 char *ckexinit, int ckexinitlen,
117 char *skexinit, int skexinitlen,
118 char *serverhostkeyblob, int sbloblen,
119 BIGNUM *client_dh_pub,
120 BIGNUM *server_dh_pub,
121 BIGNUM *shared_secret);