Annotation of src/usr.bin/ssh/kex.h, Revision 1.2.2.4
1.2.2.4 ! jason 1: /* $OpenBSD: kex.h,v 1.15 2001/03/05 17:17:20 markus Exp $ */
1.2.2.3 jason 2:
1.1 markus 3: /*
4: * Copyright (c) 2000 Markus Friedl. All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26: #ifndef KEX_H
27: #define KEX_H
28:
1.2.2.3 jason 29: #include <openssl/evp.h>
30: #include "buffer.h"
31:
1.2.2.2 jason 32: #define KEX_DH1 "diffie-hellman-group1-sha1"
33: #define KEX_DHGEX "diffie-hellman-group-exchange-sha1"
1.1 markus 34:
35: enum kex_init_proposals {
36: PROPOSAL_KEX_ALGS,
37: PROPOSAL_SERVER_HOST_KEY_ALGS,
38: PROPOSAL_ENC_ALGS_CTOS,
39: PROPOSAL_ENC_ALGS_STOC,
40: PROPOSAL_MAC_ALGS_CTOS,
41: PROPOSAL_MAC_ALGS_STOC,
42: PROPOSAL_COMP_ALGS_CTOS,
43: PROPOSAL_COMP_ALGS_STOC,
44: PROPOSAL_LANG_CTOS,
45: PROPOSAL_LANG_STOC,
46: PROPOSAL_MAX
47: };
48:
49: enum kex_modes {
50: MODE_IN,
51: MODE_OUT,
52: MODE_MAX
53: };
54:
1.2.2.2 jason 55: enum kex_exchange {
56: DH_GRP1_SHA1,
57: DH_GEX_SHA1
58: };
1.2.2.3 jason 59:
1.1 markus 60: typedef struct Kex Kex;
61: typedef struct Mac Mac;
62: typedef struct Comp Comp;
63: typedef struct Enc Enc;
64:
65: struct Enc {
1.2.2.2 jason 66: char *name;
67: Cipher *cipher;
1.1 markus 68: int enabled;
1.2.2.3 jason 69: u_char *key;
70: u_char *iv;
1.1 markus 71: };
72: struct Mac {
1.2.2.2 jason 73: char *name;
1.1 markus 74: int enabled;
1.2.2.2 jason 75: EVP_MD *md;
1.1 markus 76: int mac_len;
1.2.2.3 jason 77: u_char *key;
1.1 markus 78: int key_len;
79: };
80: struct Comp {
81: int type;
82: int enabled;
83: char *name;
84: };
85: struct Kex {
86: Enc enc [MODE_MAX];
87: Mac mac [MODE_MAX];
88: Comp comp[MODE_MAX];
89: int we_need;
90: int server;
91: char *name;
1.2.2.3 jason 92: int hostkey_type;
1.2.2.2 jason 93: int kex_type;
1.1 markus 94: };
95:
96: Buffer *kex_init(char *myproposal[PROPOSAL_MAX]);
1.2.2.1 jason 97: void
98: kex_exchange_kexinit(
99: Buffer *my_kexinit, Buffer *peer_kexint,
100: char *peer_proposal[PROPOSAL_MAX]);
101: Kex *
102: kex_choose_conf(char *cprop[PROPOSAL_MAX],
103: char *sprop[PROPOSAL_MAX], int server);
1.2.2.3 jason 104: int kex_derive_keys(Kex *k, u_char *hash, BIGNUM *shared_secret);
1.1 markus 105: void packet_set_kex(Kex *k);
1.2.2.1 jason 106: int dh_pub_is_valid(DH *dh, BIGNUM *dh_pub);
1.2.2.2 jason 107: DH *dh_new_group_asc(const char *, const char *);
108: DH *dh_new_group(BIGNUM *, BIGNUM *);
1.2.2.4 ! jason 109: void dh_gen_key(DH *, int);
1.2.2.3 jason 110: DH *dh_new_group1(void);
1.1 markus 111:
1.2.2.3 jason 112: u_char *
1.1 markus 113: kex_hash(
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);
122:
1.2.2.3 jason 123: u_char *
1.2.2.2 jason 124: kex_hash_gex(
125: char *client_version_string,
126: char *server_version_string,
127: char *ckexinit, int ckexinitlen,
128: char *skexinit, int skexinitlen,
129: char *serverhostkeyblob, int sbloblen,
130: int minbits, BIGNUM *prime, BIGNUM *gen,
131: BIGNUM *client_dh_pub,
132: BIGNUM *server_dh_pub,
133: BIGNUM *shared_secret);
1.1 markus 134: #endif
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