1 /* $OpenBSD: myproposal.h,v 1.41 2014/07/11 13:54:34 tedu Exp $ */ 2 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 27 #include <openssl/opensslv.h> 28 29 /* conditional algorithm support */ 30 31 #ifdef OPENSSL_HAS_ECC 32 #ifdef OPENSSL_HAS_NISTP521 33 # define KEX_ECDH_METHODS \ 34 "ecdh-sha2-nistp256," \ 35 "ecdh-sha2-nistp384," \ 36 "ecdh-sha2-nistp521," 37 # define HOSTKEY_ECDSA_CERT_METHODS \ 38 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \ 39 "ecdsa-sha2-nistp384-cert-v01@openssh.com," \ 40 "ecdsa-sha2-nistp521-cert-v01@openssh.com," 41 # define HOSTKEY_ECDSA_METHODS \ 42 "ecdsa-sha2-nistp256," \ 43 "ecdsa-sha2-nistp384," \ 44 "ecdsa-sha2-nistp521," 45 #else 46 # define KEX_ECDH_METHODS \ 47 "ecdh-sha2-nistp256," \ 48 "ecdh-sha2-nistp384," 49 # define HOSTKEY_ECDSA_CERT_METHODS \ 50 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \ 51 "ecdsa-sha2-nistp384-cert-v01@openssh.com," 52 # define HOSTKEY_ECDSA_METHODS \ 53 "ecdsa-sha2-nistp256," \ 54 "ecdsa-sha2-nistp384," 55 #endif 56 #else 57 # define KEX_ECDH_METHODS 58 # define HOSTKEY_ECDSA_CERT_METHODS 59 # define HOSTKEY_ECDSA_METHODS 60 #endif 61 62 #ifdef OPENSSL_HAVE_EVPGCM 63 # define AESGCM_CIPHER_MODES \ 64 "aes128-gcm@openssh.com,aes256-gcm@openssh.com," 65 #else 66 # define AESGCM_CIPHER_MODES 67 #endif 68 69 #ifdef HAVE_EVP_SHA256 70 # define KEX_SHA256_METHODS \ 71 "diffie-hellman-group-exchange-sha256," 72 #define SHA2_HMAC_MODES \ 73 "hmac-sha2-256," \ 74 "hmac-sha2-512," 75 #else 76 # define KEX_SHA256_METHODS 77 # define SHA2_HMAC_MODES 78 #endif 79 80 #ifdef WITH_OPENSSL 81 # ifdef HAVE_EVP_SHA256 82 # define KEX_CURVE25519_METHODS "curve25519-sha256@libssh.org," 83 # else 84 # define KEX_CURVE25519_METHODS "" 85 # endif 86 #define KEX_SERVER_KEX \ 87 KEX_CURVE25519_METHODS \ 88 KEX_ECDH_METHODS \ 89 KEX_SHA256_METHODS \ 90 "diffie-hellman-group14-sha1" 91 92 #define KEX_CLIENT_KEX KEX_SERVER_KEX "," \ 93 "diffie-hellman-group-exchange-sha1," \ 94 "diffie-hellman-group1-sha1" 95 96 #define KEX_DEFAULT_PK_ALG \ 97 HOSTKEY_ECDSA_CERT_METHODS \ 98 "ssh-ed25519-cert-v01@openssh.com," \ 99 "ssh-rsa-cert-v01@openssh.com," \ 100 "ssh-dss-cert-v01@openssh.com," \ 101 "ssh-rsa-cert-v00@openssh.com," \ 102 "ssh-dss-cert-v00@openssh.com," \ 103 HOSTKEY_ECDSA_METHODS \ 104 "ssh-ed25519," \ 105 "ssh-rsa," \ 106 "ssh-dss" 107 108 /* the actual algorithms */ 109 110 #define KEX_SERVER_ENCRYPT \ 111 "aes128-ctr,aes192-ctr,aes256-ctr," \ 112 AESGCM_CIPHER_MODES \ 113 "chacha20-poly1305@openssh.com" 114 115 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \ 116 "arcfour256,arcfour128," \ 117 "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ 118 "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" 119 120 #define KEX_SERVER_MAC \ 121 "umac-64-etm@openssh.com," \ 122 "umac-128-etm@openssh.com," \ 123 "hmac-sha2-256-etm@openssh.com," \ 124 "hmac-sha2-512-etm@openssh.com," \ 125 "hmac-sha1-etm@openssh.com," \ 126 "umac-64@openssh.com," \ 127 "umac-128@openssh.com," \ 128 "hmac-sha2-256," \ 129 "hmac-sha2-512," \ 130 "hmac-sha1" 131 132 #define KEX_CLIENT_MAC KEX_SERVER_MAC "," \ 133 "hmac-md5-etm@openssh.com," \ 134 "hmac-ripemd160-etm@openssh.com," \ 135 "hmac-sha1-96-etm@openssh.com," \ 136 "hmac-md5-96-etm@openssh.com," \ 137 "hmac-md5," \ 138 "hmac-ripemd160," \ 139 "hmac-ripemd160@openssh.com," \ 140 "hmac-sha1-96," \ 141 "hmac-md5-96" 142 143 #else 144 145 #define KEX_SERVER_KEX \ 146 "curve25519-sha256@libssh.org" 147 #define KEX_DEFAULT_PK_ALG \ 148 "ssh-ed25519-cert-v01@openssh.com," \ 149 "ssh-ed25519" 150 #define KEX_SERVER_ENCRYPT \ 151 "aes128-ctr,aes192-ctr,aes256-ctr," \ 152 "chacha20-poly1305@openssh.com" 153 #define KEX_SERVER_MAC \ 154 "umac-64-etm@openssh.com," \ 155 "umac-128-etm@openssh.com," \ 156 "hmac-sha2-256-etm@openssh.com," \ 157 "hmac-sha2-512-etm@openssh.com," \ 158 "hmac-sha1-etm@openssh.com," \ 159 "umac-64@openssh.com," \ 160 "umac-128@openssh.com," \ 161 "hmac-sha2-256," \ 162 "hmac-sha2-512," \ 163 "hmac-sha1" 164 165 #define KEX_CLIENT_KEX KEX_SERVER_KEX 166 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT 167 #define KEX_CLIENT_MAC KEX_SERVER_MAC 168 169 #endif /* WITH_OPENSSL */ 170 171 #define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib" 172 #define KEX_DEFAULT_LANG "" 173 174 #define KEX_ENCRYPT_INCLUDE_NONE KEX_SERVER_ENCRYPT ",none" 175 176 #define KEX_CLIENT \ 177 KEX_CLIENT_KEX, \ 178 KEX_DEFAULT_PK_ALG, \ 179 KEX_CLIENT_ENCRYPT, \ 180 KEX_CLIENT_ENCRYPT, \ 181 KEX_CLIENT_MAC, \ 182 KEX_CLIENT_MAC, \ 183 KEX_DEFAULT_COMP, \ 184 KEX_DEFAULT_COMP, \ 185 KEX_DEFAULT_LANG, \ 186 KEX_DEFAULT_LANG 187 188 #define KEX_SERVER \ 189 KEX_SERVER_KEX, \ 190 KEX_DEFAULT_PK_ALG, \ 191 KEX_SERVER_ENCRYPT, \ 192 KEX_SERVER_ENCRYPT, \ 193 KEX_SERVER_MAC, \ 194 KEX_SERVER_MAC, \ 195 KEX_DEFAULT_COMP, \ 196 KEX_DEFAULT_COMP, \ 197 KEX_DEFAULT_LANG, \ 198 KEX_DEFAULT_LANG 199 200