1 /* $OpenBSD: myproposal.h,v 1.50 2016/02/09 05:30:04 djm Exp $ */
5 * Copyright (c) 2000 Markus Friedl. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include <openssl/opensslv.h>
30 /* conditional algorithm support */
32 #ifdef OPENSSL_HAS_ECC
33 #ifdef OPENSSL_HAS_NISTP521
34 # define KEX_ECDH_METHODS \
35 "ecdh-sha2-nistp256," \
36 "ecdh-sha2-nistp384," \
38 # define HOSTKEY_ECDSA_CERT_METHODS \
39 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \
40 "ecdsa-sha2-nistp384-cert-v01@openssh.com," \
41 "ecdsa-sha2-nistp521-cert-v01@openssh.com,"
42 # define HOSTKEY_ECDSA_METHODS \
43 "ecdsa-sha2-nistp256," \
44 "ecdsa-sha2-nistp384," \
45 "ecdsa-sha2-nistp521,"
47 # define KEX_ECDH_METHODS \
48 "ecdh-sha2-nistp256," \
50 # define HOSTKEY_ECDSA_CERT_METHODS \
51 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \
52 "ecdsa-sha2-nistp384-cert-v01@openssh.com,"
53 # define HOSTKEY_ECDSA_METHODS \
54 "ecdsa-sha2-nistp256," \
55 "ecdsa-sha2-nistp384,"
58 # define KEX_ECDH_METHODS
59 # define HOSTKEY_ECDSA_CERT_METHODS
60 # define HOSTKEY_ECDSA_METHODS
63 #ifdef OPENSSL_HAVE_EVPGCM
64 # define AESGCM_CIPHER_MODES \
65 ",aes128-gcm@openssh.com,aes256-gcm@openssh.com"
67 # define AESGCM_CIPHER_MODES
70 #ifdef HAVE_EVP_SHA256
71 # define KEX_SHA256_METHODS \
72 "diffie-hellman-group-exchange-sha256,"
73 #define SHA2_HMAC_MODES \
77 # define KEX_SHA256_METHODS
78 # define SHA2_HMAC_MODES
82 # ifdef HAVE_EVP_SHA256
83 # define KEX_CURVE25519_METHODS "curve25519-sha256@libssh.org,"
85 # define KEX_CURVE25519_METHODS ""
87 #define KEX_COMMON_KEX \
88 KEX_CURVE25519_METHODS \
92 #define KEX_SERVER_KEX KEX_COMMON_KEX \
93 "diffie-hellman-group14-sha1" \
95 #define KEX_CLIENT_KEX KEX_COMMON_KEX \
96 "diffie-hellman-group-exchange-sha1," \
97 "diffie-hellman-group14-sha1"
99 #define KEX_DEFAULT_PK_ALG \
100 HOSTKEY_ECDSA_CERT_METHODS \
101 "ssh-ed25519-cert-v01@openssh.com," \
102 "ssh-rsa-cert-v01@openssh.com," \
103 "ssh-dss-cert-v01@openssh.com," \
104 HOSTKEY_ECDSA_METHODS \
111 /* the actual algorithms */
113 #define KEX_SERVER_ENCRYPT \
114 "chacha20-poly1305@openssh.com," \
115 "aes128-ctr,aes192-ctr,aes256-ctr" \
116 AESGCM_CIPHER_MODES \
117 ",aes128-cbc,aes192-cbc,aes256-cbc"
119 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \
122 #define KEX_SERVER_MAC \
123 "umac-64-etm@openssh.com," \
124 "umac-128-etm@openssh.com," \
125 "hmac-sha2-256-etm@openssh.com," \
126 "hmac-sha2-512-etm@openssh.com," \
127 "hmac-sha1-etm@openssh.com," \
128 "umac-64@openssh.com," \
129 "umac-128@openssh.com," \
134 #define KEX_CLIENT_MAC KEX_SERVER_MAC
136 #else /* WITH_OPENSSL */
138 #define KEX_SERVER_KEX \
139 "curve25519-sha256@libssh.org"
140 #define KEX_DEFAULT_PK_ALG \
141 "ssh-ed25519-cert-v01@openssh.com," \
143 #define KEX_SERVER_ENCRYPT \
144 "chacha20-poly1305@openssh.com," \
145 "aes128-ctr,aes192-ctr,aes256-ctr"
146 #define KEX_SERVER_MAC \
147 "umac-64-etm@openssh.com," \
148 "umac-128-etm@openssh.com," \
149 "hmac-sha2-256-etm@openssh.com," \
150 "hmac-sha2-512-etm@openssh.com," \
151 "hmac-sha1-etm@openssh.com," \
152 "umac-64@openssh.com," \
153 "umac-128@openssh.com," \
158 #define KEX_CLIENT_KEX KEX_SERVER_KEX
159 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT
160 #define KEX_CLIENT_MAC KEX_SERVER_MAC
162 #endif /* WITH_OPENSSL */
164 #define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib"
165 #define KEX_DEFAULT_LANG ""
169 KEX_DEFAULT_PK_ALG, \
170 KEX_CLIENT_ENCRYPT, \
171 KEX_CLIENT_ENCRYPT, \
181 KEX_DEFAULT_PK_ALG, \
182 KEX_SERVER_ENCRYPT, \
183 KEX_SERVER_ENCRYPT, \