1 /* $OpenBSD: myproposal.h,v 1.47 2015/07/10 06:21:53 markus Exp $ */ 2 /* $FreeBSD$ */ 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_SHA256_METHODS \ 72 "diffie-hellman-group-exchange-sha256," 73 #define SHA2_HMAC_MODES \ 74 "hmac-sha2-256," \ 75 "hmac-sha2-512," 76 #else 77 # define KEX_SHA256_METHODS 78 # define SHA2_HMAC_MODES 79 #endif 80 81 #ifdef WITH_OPENSSL 82 # ifdef HAVE_EVP_SHA256 83 # define KEX_CURVE25519_METHODS "curve25519-sha256@libssh.org," 84 # else 85 # define KEX_CURVE25519_METHODS "" 86 # endif 87 #define KEX_COMMON_KEX \ 88 KEX_CURVE25519_METHODS \ 89 KEX_ECDH_METHODS \ 90 KEX_SHA256_METHODS 91 92 #define KEX_SERVER_KEX KEX_COMMON_KEX \ 93 "diffie-hellman-group14-sha1" \ 94 95 #define KEX_CLIENT_KEX KEX_COMMON_KEX \ 96 "diffie-hellman-group-exchange-sha1," \ 97 "diffie-hellman-group14-sha1" 98 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 \ 105 "ssh-ed25519," \ 106 "ssh-rsa," \ 107 "ssh-dss" 108 109 /* the actual algorithms */ 110 111 #define KEX_SERVER_ENCRYPT \ 112 "chacha20-poly1305@openssh.com," \ 113 "aes128-ctr,aes192-ctr,aes256-ctr" \ 114 AESGCM_CIPHER_MODES 115 116 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \ 117 "arcfour256,arcfour128," \ 118 "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ 119 "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" 120 121 #define KEX_SERVER_MAC \ 122 "umac-64-etm@openssh.com," \ 123 "umac-128-etm@openssh.com," \ 124 "hmac-sha2-256-etm@openssh.com," \ 125 "hmac-sha2-512-etm@openssh.com," \ 126 "hmac-sha1-etm@openssh.com," \ 127 "umac-64@openssh.com," \ 128 "umac-128@openssh.com," \ 129 "hmac-sha2-256," \ 130 "hmac-sha2-512," \ 131 "hmac-sha1" 132 133 #define KEX_CLIENT_MAC KEX_SERVER_MAC "," \ 134 "hmac-md5-etm@openssh.com," \ 135 "hmac-ripemd160-etm@openssh.com," \ 136 "hmac-sha1-96-etm@openssh.com," \ 137 "hmac-md5-96-etm@openssh.com," \ 138 "hmac-md5," \ 139 "hmac-ripemd160," \ 140 "hmac-ripemd160@openssh.com," \ 141 "hmac-sha1-96," \ 142 "hmac-md5-96" 143 144 #else 145 146 #define KEX_SERVER_KEX \ 147 "curve25519-sha256@libssh.org" 148 #define KEX_DEFAULT_PK_ALG \ 149 "ssh-ed25519-cert-v01@openssh.com," \ 150 "ssh-ed25519" 151 #define KEX_SERVER_ENCRYPT \ 152 "chacha20-poly1305@openssh.com," \ 153 "aes128-ctr,aes192-ctr,aes256-ctr" 154 #define KEX_SERVER_MAC \ 155 "umac-64-etm@openssh.com," \ 156 "umac-128-etm@openssh.com," \ 157 "hmac-sha2-256-etm@openssh.com," \ 158 "hmac-sha2-512-etm@openssh.com," \ 159 "hmac-sha1-etm@openssh.com," \ 160 "umac-64@openssh.com," \ 161 "umac-128@openssh.com," \ 162 "hmac-sha2-256," \ 163 "hmac-sha2-512," \ 164 "hmac-sha1" 165 166 #define KEX_CLIENT_KEX KEX_SERVER_KEX 167 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT 168 #define KEX_CLIENT_MAC KEX_SERVER_MAC 169 170 #endif /* WITH_OPENSSL */ 171 172 #define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib" 173 #define KEX_DEFAULT_LANG "" 174 175 #define KEX_CLIENT \ 176 KEX_CLIENT_KEX, \ 177 KEX_DEFAULT_PK_ALG, \ 178 KEX_CLIENT_ENCRYPT, \ 179 KEX_CLIENT_ENCRYPT, \ 180 KEX_CLIENT_MAC, \ 181 KEX_CLIENT_MAC, \ 182 KEX_DEFAULT_COMP, \ 183 KEX_DEFAULT_COMP, \ 184 KEX_DEFAULT_LANG, \ 185 KEX_DEFAULT_LANG 186 187 #define KEX_SERVER \ 188 KEX_SERVER_KEX, \ 189 KEX_DEFAULT_PK_ALG, \ 190 KEX_SERVER_ENCRYPT, \ 191 KEX_SERVER_ENCRYPT, \ 192 KEX_SERVER_MAC, \ 193 KEX_SERVER_MAC, \ 194 KEX_DEFAULT_COMP, \ 195 KEX_DEFAULT_COMP, \ 196 KEX_DEFAULT_LANG, \ 197 KEX_DEFAULT_LANG 198 199