crypto/openssh/myproposal.h

   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 };