1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/* $OpenBSD: cipher.h,v 1.49 2016/08/03 05:41:57 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
*
* As far as I am concerned, the code I have written for this software
* can be used freely for any purpose. Any derived versions of this
* software must be clearly marked as such, and if the derived work is
* incompatible with the protocol description in the RFC file, it must be
* called by a name other than "ssh" or "Secure Shell".
*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CIPHER_H
#define CIPHER_H
#include <sys/types.h>
#include <openssl/evp.h>
#include "cipher-chachapoly.h"
#include "cipher-aesctr.h"
/*
* Cipher types for SSH-1. New types can be added, but old types should not
* be removed for compatibility. The maximum allowed value is 31.
*/
#define SSH_CIPHER_SSH2 -3
#define SSH_CIPHER_INVALID -2 /* No valid cipher selected. */
#define SSH_CIPHER_NOT_SET -1 /* None selected (invalid number). */
#define SSH_CIPHER_NONE 0 /* no encryption */
#define SSH_CIPHER_IDEA 1 /* IDEA CFB */
#define SSH_CIPHER_DES 2 /* DES CBC */
#define SSH_CIPHER_3DES 3 /* 3DES CBC */
#define SSH_CIPHER_BROKEN_TSS 4 /* TRI's Simple Stream encryption CBC */
#define SSH_CIPHER_BROKEN_RC4 5 /* Alleged RC4 */
#define SSH_CIPHER_BLOWFISH 6
#define SSH_CIPHER_RESERVED 7
#define SSH_CIPHER_MAX 31
#define CIPHER_ENCRYPT 1
#define CIPHER_DECRYPT 0
struct sshcipher;
struct sshcipher_ctx;
u_int cipher_mask_ssh1(int);
const struct sshcipher *cipher_by_name(const char *);
const struct sshcipher *cipher_by_number(int);
int cipher_number(const char *);
char *cipher_name(int);
const char *cipher_warning_message(const struct sshcipher_ctx *);
int ciphers_valid(const char *);
char *cipher_alg_list(char, int);
int cipher_init(struct sshcipher_ctx **, const struct sshcipher *,
const u_char *, u_int, const u_char *, u_int, int);
int cipher_crypt(struct sshcipher_ctx *, u_int, u_char *, const u_char *,
u_int, u_int, u_int);
int cipher_get_length(struct sshcipher_ctx *, u_int *, u_int,
const u_char *, u_int);
void cipher_free(struct sshcipher_ctx *);
int cipher_set_key_string(struct sshcipher_ctx **,
const struct sshcipher *, const char *, int);
u_int cipher_blocksize(const struct sshcipher *);
u_int cipher_keylen(const struct sshcipher *);
u_int cipher_seclen(const struct sshcipher *);
u_int cipher_authlen(const struct sshcipher *);
u_int cipher_ivlen(const struct sshcipher *);
u_int cipher_is_cbc(const struct sshcipher *);
u_int cipher_ctx_is_plaintext(struct sshcipher_ctx *);
u_int cipher_ctx_get_number(struct sshcipher_ctx *);
u_int cipher_get_number(const struct sshcipher *);
int cipher_get_keyiv(struct sshcipher_ctx *, u_char *, u_int);
int cipher_set_keyiv(struct sshcipher_ctx *, const u_char *);
int cipher_get_keyiv_len(const struct sshcipher_ctx *);
int cipher_get_keycontext(const struct sshcipher_ctx *, u_char *);
void cipher_set_keycontext(struct sshcipher_ctx *, const u_char *);
#endif /* CIPHER_H */
|
