myproposal.h revision 323129
1/* $OpenBSD: myproposal.h,v 1.50 2016/02/09 05:30:04 djm Exp $ */ 2/* $FreeBSD: stable/11/crypto/openssh/myproposal.h 323129 2017-09-02 14:25:20Z des $ */ 3 4/* 5 * Copyright (c) 2000 Markus Friedl. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 15 * 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. 26 */ 27 28#include <openssl/opensslv.h> 29 30/* conditional algorithm support */ 31 32#ifdef OPENSSL_HAS_ECC 33#ifdef OPENSSL_HAS_NISTP521 34# define KEX_ECDH_METHODS \ 35 "ecdh-sha2-nistp256," \ 36 "ecdh-sha2-nistp384," \ 37 "ecdh-sha2-nistp521," 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," 46#else 47# define KEX_ECDH_METHODS \ 48 "ecdh-sha2-nistp256," \ 49 "ecdh-sha2-nistp384," 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," 56#endif 57#else 58# define KEX_ECDH_METHODS 59# define HOSTKEY_ECDSA_CERT_METHODS 60# define HOSTKEY_ECDSA_METHODS 61#endif 62 63#ifdef OPENSSL_HAVE_EVPGCM 64# define AESGCM_CIPHER_MODES \ 65 ",aes128-gcm@openssh.com,aes256-gcm@openssh.com" 66#else 67# define AESGCM_CIPHER_MODES 68#endif 69 70#ifdef HAVE_EVP_SHA256 71# define KEX_SHA2_METHODS \ 72 "diffie-hellman-group-exchange-sha256," \ 73 "diffie-hellman-group16-sha512," \ 74 "diffie-hellman-group18-sha512," 75# define KEX_SHA2_GROUP14 \ 76 "diffie-hellman-group14-sha256," 77#define SHA2_HMAC_MODES \ 78 "hmac-sha2-256," \ 79 "hmac-sha2-512," 80#else 81# define KEX_SHA2_METHODS 82# define KEX_SHA2_GROUP14 83# define SHA2_HMAC_MODES 84#endif 85 86#ifdef WITH_OPENSSL 87# ifdef HAVE_EVP_SHA256 88# define KEX_CURVE25519_METHODS "curve25519-sha256@libssh.org," 89# else 90# define KEX_CURVE25519_METHODS "" 91# endif 92#define KEX_COMMON_KEX \ 93 KEX_CURVE25519_METHODS \ 94 KEX_ECDH_METHODS \ 95 KEX_SHA2_METHODS 96 97#define KEX_SERVER_KEX KEX_COMMON_KEX \ 98 KEX_SHA2_GROUP14 \ 99 "diffie-hellman-group14-sha1" \ 100 101#define KEX_CLIENT_KEX KEX_COMMON_KEX \ 102 "diffie-hellman-group-exchange-sha1," \ 103 KEX_SHA2_GROUP14 \ 104 "diffie-hellman-group14-sha1" 105 106#define KEX_DEFAULT_PK_ALG \ 107 HOSTKEY_ECDSA_CERT_METHODS \ 108 "ssh-ed25519-cert-v01@openssh.com," \ 109 "ssh-rsa-cert-v01@openssh.com," \ 110 HOSTKEY_ECDSA_METHODS \ 111 "ssh-ed25519," \ 112 "rsa-sha2-512," \ 113 "rsa-sha2-256," \ 114 "ssh-rsa" 115 116/* the actual algorithms */ 117 118#define KEX_SERVER_ENCRYPT \ 119 "chacha20-poly1305@openssh.com," \ 120 "aes128-ctr,aes192-ctr,aes256-ctr" \ 121 AESGCM_CIPHER_MODES \ 122 ",aes128-cbc,aes192-cbc,aes256-cbc" 123 124#define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \ 125 "3des-cbc" 126 127#define KEX_SERVER_MAC \ 128 "umac-64-etm@openssh.com," \ 129 "umac-128-etm@openssh.com," \ 130 "hmac-sha2-256-etm@openssh.com," \ 131 "hmac-sha2-512-etm@openssh.com," \ 132 "hmac-sha1-etm@openssh.com," \ 133 "umac-64@openssh.com," \ 134 "umac-128@openssh.com," \ 135 "hmac-sha2-256," \ 136 "hmac-sha2-512," \ 137 "hmac-sha1" 138 139#define KEX_CLIENT_MAC KEX_SERVER_MAC 140 141#else /* WITH_OPENSSL */ 142 143#define KEX_SERVER_KEX \ 144 "curve25519-sha256@libssh.org" 145#define KEX_DEFAULT_PK_ALG \ 146 "ssh-ed25519-cert-v01@openssh.com," \ 147 "ssh-ed25519" 148#define KEX_SERVER_ENCRYPT \ 149 "chacha20-poly1305@openssh.com," \ 150 "aes128-ctr,aes192-ctr,aes256-ctr" 151#define KEX_SERVER_MAC \ 152 "umac-64-etm@openssh.com," \ 153 "umac-128-etm@openssh.com," \ 154 "hmac-sha2-256-etm@openssh.com," \ 155 "hmac-sha2-512-etm@openssh.com," \ 156 "hmac-sha1-etm@openssh.com," \ 157 "umac-64@openssh.com," \ 158 "umac-128@openssh.com," \ 159 "hmac-sha2-256," \ 160 "hmac-sha2-512," \ 161 "hmac-sha1" 162 163#define KEX_CLIENT_KEX KEX_SERVER_KEX 164#define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT 165#define KEX_CLIENT_MAC KEX_SERVER_MAC 166 167#endif /* WITH_OPENSSL */ 168 169#define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib" 170#define KEX_DEFAULT_LANG "" 171 172#define KEX_CLIENT \ 173 KEX_CLIENT_KEX, \ 174 KEX_DEFAULT_PK_ALG, \ 175 KEX_CLIENT_ENCRYPT, \ 176 KEX_CLIENT_ENCRYPT, \ 177 KEX_CLIENT_MAC, \ 178 KEX_CLIENT_MAC, \ 179 KEX_DEFAULT_COMP, \ 180 KEX_DEFAULT_COMP, \ 181 KEX_DEFAULT_LANG, \ 182 KEX_DEFAULT_LANG 183 184#define KEX_SERVER \ 185 KEX_SERVER_KEX, \ 186 KEX_DEFAULT_PK_ALG, \ 187 KEX_SERVER_ENCRYPT, \ 188 KEX_SERVER_ENCRYPT, \ 189 KEX_SERVER_MAC, \ 190 KEX_SERVER_MAC, \ 191 KEX_DEFAULT_COMP, \ 192 KEX_DEFAULT_COMP, \ 193 KEX_DEFAULT_LANG, \ 194 KEX_DEFAULT_LANG 195 196