myproposal.h

   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 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 \
  97         KEX_ECDH_METHODS \
  98         KEX_SHA256_METHODS \
  99         "diffie-hellman-group14-sha1"
 100
 101 #define KEX_CLIENT_KEX KEX_SERVER_KEX "," \
 102         "diffie-hellman-group-exchange-sha1," \
 103         "diffie-hellman-group1-sha1"
 104
 105 #define KEX_DEFAULT_PK_ALG      \
 106         HOSTKEY_ECDSA_CERT_METHODS \
 107         "ssh-ed25519-cert-v01@openssh.com," \
 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 \
 113         "ssh-ed25519," \
 114         "ssh-rsa," \
 115         "ssh-dss"
 116
 117 /* the actual algorithms */
 118
 119 #define KEX_SERVER_ENCRYPT \
 120         "aes128-ctr,aes192-ctr,aes256-ctr," \
 121         AESGCM_CIPHER_MODES \
 122         "chacha20-poly1305@openssh.com"
 123
 124 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT "," \
 125         "arcfour256,arcfour128," \
 126         "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \
 127         "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se"
 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," \
 135         "umac-64@openssh.com," \
 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," \
 146         RIPEMD_MAC_MODES \
 147         "hmac-sha1-96," \
 148         "hmac-md5-96"
 149
 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
 178 #define KEX_DEFAULT_COMP        "none,zlib@openssh.com,zlib"
 179 #define KEX_DEFAULT_LANG        ""
 180
 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, \
 191         KEX_DEFAULT_LANG
 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