1 /* $OpenBSD: myproposal.h,v 1.35 2013/12/06 13:39:49 markus 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 KEX_CURVE25519_METHODS \ 73 "curve25519-sha256@libssh.org," 74 #define SHA2_HMAC_MODES \ 75 "hmac-sha2-256," \ 76 "hmac-sha2-512," 77 #else 78 # define KEX_SHA256_METHODS 79 # define KEX_CURVE25519_METHODS 80 # define SHA2_HMAC_MODES 81 #endif 82 83 # define KEX_DEFAULT_KEX \ 84 KEX_CURVE25519_METHODS \ 85 KEX_ECDH_METHODS \ 86 KEX_SHA256_METHODS \ 87 "diffie-hellman-group-exchange-sha1," \ 88 "diffie-hellman-group14-sha1," \ 89 "diffie-hellman-group1-sha1" 90 91 #define KEX_DEFAULT_PK_ALG \ 92 HOSTKEY_ECDSA_CERT_METHODS \ 93 "ssh-ed25519-cert-v01@openssh.com," \ 94 "ssh-rsa-cert-v01@openssh.com," \ 95 "ssh-dss-cert-v01@openssh.com," \ 96 "ssh-rsa-cert-v00@openssh.com," \ 97 "ssh-dss-cert-v00@openssh.com," \ 98 HOSTKEY_ECDSA_METHODS \ 99 "ssh-ed25519," \ 100 "ssh-rsa," \ 101 "ssh-dss" 102 103 /* the actual algorithms */ 104 105 #define KEX_DEFAULT_ENCRYPT \ 106 "aes128-ctr,aes192-ctr,aes256-ctr," \ 107 "arcfour256,arcfour128," \ 108 AESGCM_CIPHER_MODES \ 109 "chacha20-poly1305@openssh.com," \ 110 "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ 111 "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" 112 113 #define KEX_DEFAULT_MAC \ 114 "hmac-md5-etm@openssh.com," \ 115 "hmac-sha1-etm@openssh.com," \ 116 "umac-64-etm@openssh.com," \ 117 "umac-128-etm@openssh.com," \ 118 "hmac-sha2-256-etm@openssh.com," \ 119 "hmac-sha2-512-etm@openssh.com," \ 120 "hmac-ripemd160-etm@openssh.com," \ 121 "hmac-sha1-96-etm@openssh.com," \ 122 "hmac-md5-96-etm@openssh.com," \ 123 "hmac-md5," \ 124 "hmac-sha1," \ 125 "umac-64@openssh.com," \ 126 "umac-128@openssh.com," \ 127 SHA2_HMAC_MODES \ 128 "hmac-ripemd160," \ 129 "hmac-ripemd160@openssh.com," \ 130 "hmac-sha1-96," \ 131 "hmac-md5-96" 132 133 #define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib" 134 #define KEX_DEFAULT_LANG "" 135 136 137 static char *myproposal[PROPOSAL_MAX] = { 138 KEX_DEFAULT_KEX, 139 KEX_DEFAULT_PK_ALG, 140 KEX_DEFAULT_ENCRYPT, 141 KEX_DEFAULT_ENCRYPT, 142 KEX_DEFAULT_MAC, 143 KEX_DEFAULT_MAC, 144 KEX_DEFAULT_COMP, 145 KEX_DEFAULT_COMP, 146 KEX_DEFAULT_LANG, 147 KEX_DEFAULT_LANG 148 }; 149