1/* $OpenBSD: myproposal.h,v 1.71 2022/03/30 21:13:23 djm 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#define KEX_SERVER_KEX	\
28	"sntrup761x25519-sha512@openssh.com," \
29	"curve25519-sha256," \
30	"curve25519-sha256@libssh.org," \
31	"ecdh-sha2-nistp256," \
32	"ecdh-sha2-nistp384," \
33	"ecdh-sha2-nistp521," \
34	"diffie-hellman-group-exchange-sha256," \
35	"diffie-hellman-group16-sha512," \
36	"diffie-hellman-group18-sha512," \
37	"diffie-hellman-group14-sha256"
38
39#define KEX_CLIENT_KEX KEX_SERVER_KEX
40
41#define	KEX_DEFAULT_PK_ALG	\
42	"ssh-ed25519-cert-v01@openssh.com," \
43	"ecdsa-sha2-nistp256-cert-v01@openssh.com," \
44	"ecdsa-sha2-nistp384-cert-v01@openssh.com," \
45	"ecdsa-sha2-nistp521-cert-v01@openssh.com," \
46	"sk-ssh-ed25519-cert-v01@openssh.com," \
47	"sk-ecdsa-sha2-nistp256-cert-v01@openssh.com," \
48	"rsa-sha2-512-cert-v01@openssh.com," \
49	"rsa-sha2-256-cert-v01@openssh.com," \
50	"ssh-ed25519," \
51	"ecdsa-sha2-nistp256," \
52	"ecdsa-sha2-nistp384," \
53	"ecdsa-sha2-nistp521," \
54	"sk-ssh-ed25519@openssh.com," \
55	"sk-ecdsa-sha2-nistp256@openssh.com," \
56	"rsa-sha2-512," \
57	"rsa-sha2-256"
58
59#define	KEX_SERVER_ENCRYPT \
60	"chacha20-poly1305@openssh.com," \
61	"aes128-ctr,aes192-ctr,aes256-ctr," \
62	"aes128-gcm@openssh.com,aes256-gcm@openssh.com"
63
64#define KEX_CLIENT_ENCRYPT KEX_SERVER_ENCRYPT
65
66#define	KEX_SERVER_MAC \
67	"umac-64-etm@openssh.com," \
68	"umac-128-etm@openssh.com," \
69	"hmac-sha2-256-etm@openssh.com," \
70	"hmac-sha2-512-etm@openssh.com," \
71	"hmac-sha1-etm@openssh.com," \
72	"umac-64@openssh.com," \
73	"umac-128@openssh.com," \
74	"hmac-sha2-256," \
75	"hmac-sha2-512," \
76	"hmac-sha1"
77
78#define KEX_CLIENT_MAC KEX_SERVER_MAC
79
80/* Not a KEX value, but here so all the algorithm defaults are together */
81#define	SSH_ALLOWED_CA_SIGALGS	\
82	"ssh-ed25519," \
83	"ecdsa-sha2-nistp256," \
84	"ecdsa-sha2-nistp384," \
85	"ecdsa-sha2-nistp521," \
86	"sk-ssh-ed25519@openssh.com," \
87	"sk-ecdsa-sha2-nistp256@openssh.com," \
88	"rsa-sha2-512," \
89	"rsa-sha2-256"
90
91#define	KEX_DEFAULT_COMP	"none,zlib@openssh.com"
92#define	KEX_DEFAULT_LANG	""
93
94#define KEX_CLIENT \
95	KEX_CLIENT_KEX, \
96	KEX_DEFAULT_PK_ALG, \
97	KEX_CLIENT_ENCRYPT, \
98	KEX_CLIENT_ENCRYPT, \
99	KEX_CLIENT_MAC, \
100	KEX_CLIENT_MAC, \
101	KEX_DEFAULT_COMP, \
102	KEX_DEFAULT_COMP, \
103	KEX_DEFAULT_LANG, \
104	KEX_DEFAULT_LANG
105
106#define KEX_SERVER \
107	KEX_SERVER_KEX, \
108	KEX_DEFAULT_PK_ALG, \
109	KEX_SERVER_ENCRYPT, \
110	KEX_SERVER_ENCRYPT, \
111	KEX_SERVER_MAC, \
112	KEX_SERVER_MAC, \
113	KEX_DEFAULT_COMP, \
114	KEX_DEFAULT_COMP, \
115	KEX_DEFAULT_LANG, \
116	KEX_DEFAULT_LANG
117