1 /* $NetBSD: myproposal.h,v 1.26 2025/04/09 15:49:32 christos Exp $ */ 2 /* $OpenBSD: myproposal.h,v 1.77 2024/12/02 14:06:42 djm Exp $ */ 3 4 /* 5 * Copyright (c) 2000 Markus Friedl. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #define KEX_SERVER_KEX \ 29 "mlkem768x25519-sha256," \ 30 "sntrup761x25519-sha512," \ 31 "sntrup761x25519-sha512@openssh.com," \ 32 "curve25519-sha256," \ 33 "curve25519-sha256@libssh.org," \ 34 "ecdh-sha2-nistp256," \ 35 "ecdh-sha2-nistp384," \ 36 "ecdh-sha2-nistp521" \ 37 38 #define KEX_CLIENT_KEX KEX_SERVER_KEX "," \ 39 "diffie-hellman-group-exchange-sha256," \ 40 "diffie-hellman-group16-sha512," \ 41 "diffie-hellman-group18-sha512," \ 42 "diffie-hellman-group14-sha256" 43 44 #define KEX_DEFAULT_PK_ALG \ 45 "ssh-ed25519-cert-v01@openssh.com," \ 46 "ecdsa-sha2-nistp256-cert-v01@openssh.com," \ 47 "ecdsa-sha2-nistp384-cert-v01@openssh.com," \ 48 "ecdsa-sha2-nistp521-cert-v01@openssh.com," \ 49 "sk-ssh-ed25519-cert-v01@openssh.com," \ 50 "sk-ecdsa-sha2-nistp256-cert-v01@openssh.com," \ 51 "rsa-sha2-512-cert-v01@openssh.com," \ 52 "rsa-sha2-256-cert-v01@openssh.com," \ 53 "ssh-ed25519," \ 54 "ecdsa-sha2-nistp256," \ 55 "ecdsa-sha2-nistp384," \ 56 "ecdsa-sha2-nistp521," \ 57 "sk-ssh-ed25519@openssh.com," \ 58 "sk-ecdsa-sha2-nistp256@openssh.com," \ 59 "rsa-sha2-512," \ 60 "rsa-sha2-256" 61 62 #define KEX_SERVER_ENCRYPT \ 63 "chacha20-poly1305@openssh.com," \ 64 "aes128-gcm@openssh.com,aes256-gcm@openssh.com," \ 65 "aes128-ctr,aes192-ctr,aes256-ctr" 66 67 #define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT 68 69 #define KEX_SERVER_MAC \ 70 "umac-64-etm@openssh.com," \ 71 "umac-128-etm@openssh.com," \ 72 "hmac-sha2-256-etm@openssh.com," \ 73 "hmac-sha2-512-etm@openssh.com," \ 74 "hmac-sha1-etm@openssh.com," \ 75 "umac-64@openssh.com," \ 76 "umac-128@openssh.com," \ 77 "hmac-sha2-256," \ 78 "hmac-sha2-512," \ 79 "hmac-sha1" 80 81 #define KEX_CLIENT_MAC KEX_SERVER_MAC 82 83 /* Not a KEX value, but here so all the algorithm defaults are together */ 84 #define SSH_ALLOWED_CA_SIGALGS \ 85 "ssh-ed25519," \ 86 "ecdsa-sha2-nistp256," \ 87 "ecdsa-sha2-nistp384," \ 88 "ecdsa-sha2-nistp521," \ 89 "sk-ssh-ed25519@openssh.com," \ 90 "sk-ecdsa-sha2-nistp256@openssh.com," \ 91 "rsa-sha2-512," \ 92 "rsa-sha2-256" 93 94 #define KEX_CLIENT_ENCRYPT_INCLUDE_NONE KEX_CLIENT_ENCRYPT \ 95 ",none" 96 #define KEX_SERVER_ENCRYPT_INCLUDE_NONE KEX_SERVER_ENCRYPT \ 97 ",none" 98 99 #define KEX_DEFAULT_COMP "none,zlib@openssh.com" 100 #define KEX_DEFAULT_LANG "" 101 102 #define KEX_CLIENT \ 103 KEX_CLIENT_KEX, \ 104 KEX_DEFAULT_PK_ALG, \ 105 KEX_CLIENT_ENCRYPT_INCLUDE_NONE, \ 106 KEX_CLIENT_ENCRYPT_INCLUDE_NONE, \ 107 KEX_CLIENT_MAC, \ 108 KEX_CLIENT_MAC, \ 109 KEX_DEFAULT_COMP, \ 110 KEX_DEFAULT_COMP, \ 111 KEX_DEFAULT_LANG, \ 112 KEX_DEFAULT_LANG 113 114 #define KEX_SERVER \ 115 KEX_SERVER_KEX, \ 116 KEX_DEFAULT_PK_ALG, \ 117 KEX_SERVER_ENCRYPT_INCLUDE_NONE, \ 118 KEX_SERVER_ENCRYPT_INCLUDE_NONE, \ 119 KEX_SERVER_MAC, \ 120 KEX_SERVER_MAC, \ 121 KEX_DEFAULT_COMP, \ 122 KEX_DEFAULT_COMP, \ 123 KEX_DEFAULT_LANG, \ 124 KEX_DEFAULT_LANG 125