Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 1 | /* $OpenBSD: myproposal.h,v 1.41 2014/07/11 13:54:34 tedu Exp $ */ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 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 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 29 | /* conditional algorithm support */ |
| 30 | |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 31 | #ifdef OPENSSL_HAS_ECC |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 32 | #ifdef OPENSSL_HAS_NISTP521 |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 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 |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 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 |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 57 | # define KEX_ECDH_METHODS |
| 58 | # define HOSTKEY_ECDSA_CERT_METHODS |
| 59 | # define HOSTKEY_ECDSA_METHODS |
| 60 | #endif |
| 61 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 62 | #ifdef OPENSSL_HAVE_EVPGCM |
| 63 | # define AESGCM_CIPHER_MODES \ |
| 64 | "aes128-gcm@openssh.com,aes256-gcm@openssh.com," |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 65 | #else |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 66 | # define AESGCM_CIPHER_MODES |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 67 | #endif |
| 68 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 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 HAVE_EVP_RIPEMD |
| 81 | #define RIPEMD_MAC_MODES \ |
| 82 | "hmac-ripemd160-etm@openssh.com," \ |
| 83 | "hmac-ripemd160," \ |
| 84 | "hmac-ripemd160@openssh.com", |
| 85 | #else |
| 86 | #define RIPEMD_MAC_MODES |
| 87 | #endif |
| 88 | |
| 89 | #ifdef WITH_OPENSSL |
| 90 | # ifdef HAVE_EVP_SHA256 |
| 91 | # define KEX_CURVE25519_METHODS "curve25519-sha256@libssh.org," |
| 92 | # else |
| 93 | # define KEX_CURVE25519_METHODS "" |
| 94 | # endif |
| 95 | #define KEX_SERVER_KEX \ |
| 96 | KEX_CURVE25519_METHODS \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 97 | KEX_ECDH_METHODS \ |
| 98 | KEX_SHA256_METHODS \ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 99 | "diffie-hellman-group14-sha1" |
| 100 | |
| 101 | #define KEX_CLIENT_KEX KEX_SERVER_KEX "," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 102 | "diffie-hellman-group-exchange-sha1," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 103 | "diffie-hellman-group1-sha1" |
| 104 | |
| 105 | #define KEX_DEFAULT_PK_ALG \ |
| 106 | HOSTKEY_ECDSA_CERT_METHODS \ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 107 | "ssh-ed25519-cert-v01@openssh.com," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 108 | "ssh-rsa-cert-v01@openssh.com," \ |
| 109 | "ssh-dss-cert-v01@openssh.com," \ |
| 110 | "ssh-rsa-cert-v00@openssh.com," \ |
| 111 | "ssh-dss-cert-v00@openssh.com," \ |
| 112 | HOSTKEY_ECDSA_METHODS \ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 113 | "ssh-ed25519," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 114 | "ssh-rsa," \ |
| 115 | "ssh-dss" |
| 116 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 117 | /* the actual algorithms */ |
| 118 | |
| 119 | #define KEX_SERVER_ENCRYPT \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 120 | "aes128-ctr,aes192-ctr,aes256-ctr," \ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 121 | AESGCM_CIPHER_MODES \ |
| 122 | "chacha20-poly1305@openssh.com" |
| 123 | |
| 124 | #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 125 | "arcfour256,arcfour128," \ |
| 126 | "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ |
| 127 | "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 128 | |
| 129 | #define KEX_SERVER_MAC \ |
| 130 | "umac-64-etm@openssh.com," \ |
| 131 | "umac-128-etm@openssh.com," \ |
| 132 | "hmac-sha2-256-etm@openssh.com," \ |
| 133 | "hmac-sha2-512-etm@openssh.com," \ |
| 134 | "hmac-sha1-etm@openssh.com," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 135 | "umac-64@openssh.com," \ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 136 | "umac-128@openssh.com," \ |
| 137 | "hmac-sha2-256," \ |
| 138 | "hmac-sha2-512," \ |
| 139 | "hmac-sha1" |
| 140 | |
| 141 | #define KEX_CLIENT_MAC KEX_SERVER_MAC "," \ |
| 142 | "hmac-md5-etm@openssh.com," \ |
| 143 | "hmac-sha1-96-etm@openssh.com," \ |
| 144 | "hmac-md5-96-etm@openssh.com," \ |
| 145 | "hmac-md5," \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 146 | RIPEMD_MAC_MODES \ |
| 147 | "hmac-sha1-96," \ |
| 148 | "hmac-md5-96" |
| 149 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 150 | #else |
| 151 | |
| 152 | #define KEX_SERVER_KEX \ |
| 153 | "curve25519-sha256@libssh.org" |
| 154 | #define KEX_DEFAULT_PK_ALG \ |
| 155 | "ssh-ed25519-cert-v01@openssh.com," \ |
| 156 | "ssh-ed25519" |
| 157 | #define KEX_SERVER_ENCRYPT \ |
| 158 | "aes128-ctr,aes192-ctr,aes256-ctr," \ |
| 159 | "chacha20-poly1305@openssh.com" |
| 160 | #define KEX_SERVER_MAC \ |
| 161 | "umac-64-etm@openssh.com," \ |
| 162 | "umac-128-etm@openssh.com," \ |
| 163 | "hmac-sha2-256-etm@openssh.com," \ |
| 164 | "hmac-sha2-512-etm@openssh.com," \ |
| 165 | "hmac-sha1-etm@openssh.com," \ |
| 166 | "umac-64@openssh.com," \ |
| 167 | "umac-128@openssh.com," \ |
| 168 | "hmac-sha2-256," \ |
| 169 | "hmac-sha2-512," \ |
| 170 | "hmac-sha1" |
| 171 | |
| 172 | #define KEX_CLIENT_KEX KEX_SERVER_KEX |
| 173 | #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT |
| 174 | #define KEX_CLIENT_MAC KEX_SERVER_MAC |
| 175 | |
| 176 | #endif /* WITH_OPENSSL */ |
| 177 | |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 178 | #define KEX_DEFAULT_COMP "none,zlib@openssh.com,zlib" |
| 179 | #define KEX_DEFAULT_LANG "" |
| 180 | |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 181 | #define KEX_CLIENT \ |
| 182 | KEX_CLIENT_KEX, \ |
| 183 | KEX_DEFAULT_PK_ALG, \ |
| 184 | KEX_CLIENT_ENCRYPT, \ |
| 185 | KEX_CLIENT_ENCRYPT, \ |
| 186 | KEX_CLIENT_MAC, \ |
| 187 | KEX_CLIENT_MAC, \ |
| 188 | KEX_DEFAULT_COMP, \ |
| 189 | KEX_DEFAULT_COMP, \ |
| 190 | KEX_DEFAULT_LANG, \ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 191 | KEX_DEFAULT_LANG |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame^] | 192 | |
| 193 | #define KEX_SERVER \ |
| 194 | KEX_SERVER_KEX, \ |
| 195 | KEX_DEFAULT_PK_ALG, \ |
| 196 | KEX_SERVER_ENCRYPT, \ |
| 197 | KEX_SERVER_ENCRYPT, \ |
| 198 | KEX_SERVER_MAC, \ |
| 199 | KEX_SERVER_MAC, \ |
| 200 | KEX_DEFAULT_COMP, \ |
| 201 | KEX_DEFAULT_COMP, \ |
| 202 | KEX_DEFAULT_LANG, \ |
| 203 | KEX_DEFAULT_LANG |
| 204 | |