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gerrit-public.fairphone.software / platform / external / openssh / 612b1dd1ec91ffb1e01f58cca0c6eb1d47bf4423 / . / myproposal.h
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djm@openbsd.org75f7f222019-12-10 22:43:19 +0000[diff] [blame]1/* $OpenBSD: myproposal.h,v 1.62 2019/12/10 22:43:19 djm Exp $ */
Ben Lindstrom36579d32001-01-29 07:39:26 +0000[diff] [blame]2
Damien Millere4340be2000-09-16 13:29:08 +1100[diff] [blame]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 */
Tim Rice425a6882006-03-15 20:17:05 -0800[diff] [blame]26
Darren Tucker850ec172019-10-28 15:57:22 +1100[diff] [blame]27#ifdef WITH_OPENSSL
Tim Rice425a6882006-03-15 20:17:05 -0800[diff] [blame]28#include <openssl/opensslv.h>
Darren Tucker850ec172019-10-28 15:57:22 +1100[diff] [blame]29#endif
Tim Rice425a6882006-03-15 20:17:05 -0800[diff] [blame]30
Darren Tuckerb8ae92d2013-06-11 12:10:02 +1000[diff] [blame]31/* conditional algorithm support */
32
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]33#ifdef OPENSSL_HAS_ECC
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]34# ifdef OPENSSL_HAS_NISTP521
35# define KEX_ECDH_METHODS \
Damien Millereb8b60e2010-08-31 22:41:14 +1000[diff] [blame]36 "ecdh-sha2-nistp256," \
37 "ecdh-sha2-nistp384," \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]38 "ecdh-sha2-nistp521,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]39# define HOSTKEY_ECDSA_CERT_METHODS \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]40 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \
41 "ecdsa-sha2-nistp384-cert-v01@openssh.com," \
42 "ecdsa-sha2-nistp521-cert-v01@openssh.com,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]43# define HOSTKEY_ECDSA_METHODS \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]44 "ecdsa-sha2-nistp256," \
45 "ecdsa-sha2-nistp384," \
46 "ecdsa-sha2-nistp521,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]47# else /* OPENSSL_HAS_NISTP521 */
48# define KEX_ECDH_METHODS \
Darren Tucker37bcef52013-11-09 18:39:25 +1100[diff] [blame]49 "ecdh-sha2-nistp256," \
50 "ecdh-sha2-nistp384,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]51# define HOSTKEY_ECDSA_CERT_METHODS \
Darren Tucker37bcef52013-11-09 18:39:25 +1100[diff] [blame]52 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \
53 "ecdsa-sha2-nistp384-cert-v01@openssh.com,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]54# define HOSTKEY_ECDSA_METHODS \
Darren Tucker37bcef52013-11-09 18:39:25 +1100[diff] [blame]55 "ecdsa-sha2-nistp256," \
56 "ecdsa-sha2-nistp384,"
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]57# endif /* OPENSSL_HAS_NISTP521 */
58# define USERKEY_ECDSA_SK_CERT_METHODS \
59 "sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,"
60# define USERKEY_ECDSA_SK_METHODS \
61 "sk-ecdsa-sha2-nistp256@openssh.com,"
62#else /* OPENSSL_HAS_ECC */
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]63# define KEX_ECDH_METHODS
64# define HOSTKEY_ECDSA_CERT_METHODS
65# define HOSTKEY_ECDSA_METHODS
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]66# define USERKEY_ECDSA_SK_CERT_METHODS
67# define USERKEY_ECDSA_SK_METHODS
68#endif /* OPENSSL_HAS_ECC */
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]69
Darren Tucker97b62f42013-06-11 11:47:24 +1000[diff] [blame]70#ifdef OPENSSL_HAVE_EVPGCM
71# define AESGCM_CIPHER_MODES \
djm@openbsd.orga22b9ef2015-03-24 09:17:21 +0000[diff] [blame]72 ",aes128-gcm@openssh.com,aes256-gcm@openssh.com"
Darren Tucker97b62f42013-06-11 11:47:24 +1000[diff] [blame]73#else
74# define AESGCM_CIPHER_MODES
75#endif
76
Darren Tucker2ea9eb72013-06-05 15:04:00 +1000[diff] [blame]77#ifdef HAVE_EVP_SHA256
djm@openbsd.org0e8eeec2016-05-02 10:26:04 +0000[diff] [blame]78# define KEX_SHA2_METHODS \
79 "diffie-hellman-group-exchange-sha256," \
80 "diffie-hellman-group16-sha512," \
81 "diffie-hellman-group18-sha512,"
82# define KEX_SHA2_GROUP14 \
83 "diffie-hellman-group14-sha256,"
Darren Tuckerb8ae92d2013-06-11 12:10:02 +1000[diff] [blame]84#define SHA2_HMAC_MODES \
85 "hmac-sha2-256," \
86 "hmac-sha2-512,"
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]87#else
djm@openbsd.org0e8eeec2016-05-02 10:26:04 +0000[diff] [blame]88# define KEX_SHA2_METHODS
89# define KEX_SHA2_GROUP14
Darren Tuckerb8ae92d2013-06-11 12:10:02 +1000[diff] [blame]90# define SHA2_HMAC_MODES
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]91#endif
92
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]93#ifdef WITH_OPENSSL
Damien Miller2f3d1e72014-08-19 11:14:36 +1000[diff] [blame]94# ifdef HAVE_EVP_SHA256
djm@openbsd.org04937662016-09-22 17:52:53 +0000[diff] [blame]95# define KEX_CURVE25519_METHODS \
96 "curve25519-sha256," \
97 "curve25519-sha256@libssh.org,"
Darren Tuckerd7af0cc2014-06-11 07:37:25 +1000[diff] [blame]98# else
99# define KEX_CURVE25519_METHODS ""
100# endif
djm@openbsd.org9b611302019-02-23 08:20:43 +0000[diff] [blame]101#define KEX_SERVER_KEX \
Darren Tuckerd7af0cc2014-06-11 07:37:25 +1000[diff] [blame]102 KEX_CURVE25519_METHODS \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]103 KEX_ECDH_METHODS \
djm@openbsd.org9b611302019-02-23 08:20:43 +0000[diff] [blame]104 KEX_SHA2_METHODS \
djm@openbsd.org0e8eeec2016-05-02 10:26:04 +0000[diff] [blame]105 KEX_SHA2_GROUP14 \
djm@openbsd.orgbdfd29f2015-07-03 03:47:00 +0000[diff] [blame]106 "diffie-hellman-group14-sha1"
Tim Rice425a6882006-03-15 20:17:05 -0800[diff] [blame]107
djm@openbsd.org9b611302019-02-23 08:20:43 +0000[diff] [blame]108#define KEX_CLIENT_KEX KEX_SERVER_KEX
109
Damien Miller4e270b02010-04-16 15:56:21 +1000[diff] [blame]110#define KEX_DEFAULT_PK_ALG \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]111 HOSTKEY_ECDSA_CERT_METHODS \
Damien Miller5be9d9e2013-12-07 11:24:01 +1100[diff] [blame]112 "ssh-ed25519-cert-v01@openssh.com," \
djm@openbsd.org4ba0d542018-07-03 11:39:54 +0000[diff] [blame]113 "rsa-sha2-512-cert-v01@openssh.com," \
114 "rsa-sha2-256-cert-v01@openssh.com," \
Damien Millereb8b60e2010-08-31 22:41:14 +1000[diff] [blame]115 "ssh-rsa-cert-v01@openssh.com," \
Damien Miller6af914a2010-09-10 11:39:26 +1000[diff] [blame]116 HOSTKEY_ECDSA_METHODS \
Damien Miller5be9d9e2013-12-07 11:24:01 +1100[diff] [blame]117 "ssh-ed25519," \
markus@openbsd.org76c9fbb2015-12-04 16:41:28 +0000[diff] [blame]118 "rsa-sha2-512," \
markus@openbsd.org3da893f2015-12-05 20:53:21 +0000[diff] [blame]119 "rsa-sha2-256," \
markus@openbsd.org76c9fbb2015-12-04 16:41:28 +0000[diff] [blame]120 "ssh-rsa"
Damien Miller67081b52009-01-28 16:33:31 +1100[diff] [blame]121
Darren Tuckerb8ae92d2013-06-11 12:10:02 +1000[diff] [blame]122/* the actual algorithms */
123
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]124#define KEX_SERVER_ENCRYPT \
djm@openbsd.orga22b9ef2015-03-24 09:17:21 +0000[diff] [blame]125 "chacha20-poly1305@openssh.com," \
126 "aes128-ctr,aes192-ctr,aes256-ctr" \
127 AESGCM_CIPHER_MODES
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]128
djm@openbsd.org70c12182017-05-07 23:13:42 +0000[diff] [blame]129#define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT
Darren Tuckerb8ae92d2013-06-11 12:10:02 +1000[diff] [blame]130
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]131#define KEX_SERVER_MAC \
Damien Milleraf43a7a2012-12-12 10:46:31 +1100[diff] [blame]132 "umac-64-etm@openssh.com," \
133 "umac-128-etm@openssh.com," \
134 "hmac-sha2-256-etm@openssh.com," \
135 "hmac-sha2-512-etm@openssh.com," \
Damien Miller6262d762014-07-17 09:52:07 +1000[diff] [blame]136 "hmac-sha1-etm@openssh.com," \
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]137 "umac-64@openssh.com," \
138 "umac-128@openssh.com," \
139 "hmac-sha2-256," \
Damien Miller6262d762014-07-17 09:52:07 +1000[diff] [blame]140 "hmac-sha2-512," \
141 "hmac-sha1"
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]142
djm@openbsd.org714e3672016-02-09 05:30:04 +0000[diff] [blame]143#define KEX_CLIENT_MAC KEX_SERVER_MAC
Damien Miller20bd4532011-08-06 06:17:30 +1000[diff] [blame]144
djm@openbsd.org4cc259b2018-09-12 01:34:02 +0000[diff] [blame]145/* Not a KEX value, but here so all the algorithm defaults are together */
146#define SSH_ALLOWED_CA_SIGALGS \
Darren Tucker1ac98be2019-05-17 12:42:17 +1000[diff] [blame]147 HOSTKEY_ECDSA_METHODS \
djm@openbsd.org75f7f222019-12-10 22:43:19 +0000[diff] [blame]148 USERKEY_ECDSA_SK_METHODS \
djm@openbsd.org4cc259b2018-09-12 01:34:02 +0000[diff] [blame]149 "ssh-ed25519," \
djm@openbsd.org75f7f222019-12-10 22:43:19 +0000[diff] [blame]150 "sk-ssh-ed25519@openssh.com," \
djm@openbsd.org4cc259b2018-09-12 01:34:02 +0000[diff] [blame]151 "rsa-sha2-512," \
152 "rsa-sha2-256," \
153 "ssh-rsa"
154
djm@openbsd.org01a06702019-10-31 21:17:49 +0000[diff] [blame]155#define PUBKEY_DEFAULT_PK_ALG \
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]156 USERKEY_ECDSA_SK_CERT_METHODS \
Damien Miller478f4f92019-11-19 08:52:24 +1100[diff] [blame]157 HOSTKEY_ECDSA_CERT_METHODS \
markus@openbsd.org2c557442019-11-12 19:33:08 +0000[diff] [blame]158 "sk-ssh-ed25519-cert-v01@openssh.com," \
djm@openbsd.org01a06702019-10-31 21:17:49 +0000[diff] [blame]159 "ssh-ed25519-cert-v01@openssh.com," \
160 "rsa-sha2-512-cert-v01@openssh.com," \
161 "rsa-sha2-256-cert-v01@openssh.com," \
162 "ssh-rsa-cert-v01@openssh.com," \
Damien Miller6a7ef312019-11-18 22:22:04 +1100[diff] [blame]163 USERKEY_ECDSA_SK_METHODS \
Damien Miller478f4f92019-11-19 08:52:24 +1100[diff] [blame]164 HOSTKEY_ECDSA_METHODS \
markus@openbsd.org2c557442019-11-12 19:33:08 +0000[diff] [blame]165 "sk-ssh-ed25519@openssh.com," \
djm@openbsd.org01a06702019-10-31 21:17:49 +0000[diff] [blame]166 "ssh-ed25519," \
167 "rsa-sha2-512," \
168 "rsa-sha2-256," \
169 "ssh-rsa"
170
djm@openbsd.org714e3672016-02-09 05:30:04 +0000[diff] [blame]171#else /* WITH_OPENSSL */
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]172
173#define KEX_SERVER_KEX \
djm@openbsd.org04937662016-09-22 17:52:53 +0000[diff] [blame]174 "curve25519-sha256," \
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]175 "curve25519-sha256@libssh.org"
176#define KEX_DEFAULT_PK_ALG \
177 "ssh-ed25519-cert-v01@openssh.com," \
178 "ssh-ed25519"
djm@openbsd.org01a06702019-10-31 21:17:49 +0000[diff] [blame]179#define PUBKEY_DEFAULT_PK_ALG KEX_DEFAULT_PK_ALG
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]180#define KEX_SERVER_ENCRYPT \
jsg@openbsd.org39bfbf72015-04-21 07:01:00 +0000[diff] [blame]181 "chacha20-poly1305@openssh.com," \
djm@openbsd.orga22b9ef2015-03-24 09:17:21 +0000[diff] [blame]182 "aes128-ctr,aes192-ctr,aes256-ctr"
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]183#define KEX_SERVER_MAC \
Damien Miller294c58a2014-05-15 14:35:03 +1000[diff] [blame]184 "umac-64-etm@openssh.com," \
185 "umac-128-etm@openssh.com," \
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]186 "hmac-sha2-256-etm@openssh.com," \
187 "hmac-sha2-512-etm@openssh.com," \
Damien Miller6262d762014-07-17 09:52:07 +1000[diff] [blame]188 "hmac-sha1-etm@openssh.com," \
Damien Miller294c58a2014-05-15 14:35:03 +1000[diff] [blame]189 "umac-64@openssh.com," \
190 "umac-128@openssh.com," \
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]191 "hmac-sha2-256," \
Damien Miller6262d762014-07-17 09:52:07 +1000[diff] [blame]192 "hmac-sha2-512," \
193 "hmac-sha1"
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]194
195#define KEX_CLIENT_KEX KEX_SERVER_KEX
196#define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT
Damien Miller6262d762014-07-17 09:52:07 +1000[diff] [blame]197#define KEX_CLIENT_MAC KEX_SERVER_MAC
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]198
djm@openbsd.org75f7f222019-12-10 22:43:19 +0000[diff] [blame]199#define SSH_ALLOWED_CA_SIGALGS "ssh-ed25519,sk-ssh-ed25519@openssh.com"
djm@openbsd.org4cc259b2018-09-12 01:34:02 +0000[diff] [blame]200
Damien Miller1f0311c2014-05-15 14:24:09 +1000[diff] [blame]201#endif /* WITH_OPENSSL */
202
djm@openbsd.org0082fba2016-09-28 16:33:06 +0000[diff] [blame]203#define KEX_DEFAULT_COMP "none,zlib@openssh.com"
Damien Miller1383bd82000-04-06 12:32:37 +1000[diff] [blame]204#define KEX_DEFAULT_LANG ""
205
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]206#define KEX_CLIENT \
207 KEX_CLIENT_KEX, \
208 KEX_DEFAULT_PK_ALG, \
209 KEX_CLIENT_ENCRYPT, \
210 KEX_CLIENT_ENCRYPT, \
211 KEX_CLIENT_MAC, \
212 KEX_CLIENT_MAC, \
213 KEX_DEFAULT_COMP, \
214 KEX_DEFAULT_COMP, \
215 KEX_DEFAULT_LANG, \
Damien Miller1383bd82000-04-06 12:32:37 +1000[diff] [blame]216 KEX_DEFAULT_LANG
Damien Miller9235a032014-04-20 13:17:20 +1000[diff] [blame]217
218#define KEX_SERVER \
219 KEX_SERVER_KEX, \
220 KEX_DEFAULT_PK_ALG, \
221 KEX_SERVER_ENCRYPT, \
222 KEX_SERVER_ENCRYPT, \
223 KEX_SERVER_MAC, \
224 KEX_SERVER_MAC, \
225 KEX_DEFAULT_COMP, \
226 KEX_DEFAULT_COMP, \
227 KEX_DEFAULT_LANG, \
228 KEX_DEFAULT_LANG
229