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
|
/* crypto-null.c --- NULL crypto functions
* Copyright (C) 2002, 2003, 2004, 2007 Simon Josefsson
*
* This file is part of Shishi.
*
* Shishi is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Shishi is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Shishi; if not, see http://www.gnu.org/licenses or write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA
*
*/
#include "internal.h"
#include "crypto.h"
static int
null_encrypt (Shishi * handle,
Shishi_key * key,
int keyusage,
const char *iv, size_t ivlen,
char **ivout, size_t * ivoutlen,
const char *in, size_t inlen, char **out, size_t * outlen)
{
*outlen = inlen;
*out = xmalloc (*outlen);
memcpy (*out, in, inlen);
if (ivout)
*ivout = NULL;
if (ivoutlen)
*ivoutlen = 0;
return SHISHI_OK;
}
static int
null_decrypt (Shishi * handle,
Shishi_key * key,
int keyusage,
const char *iv, size_t ivlen,
char **ivout, size_t * ivoutlen,
const char *in, size_t inlen, char **out, size_t * outlen)
{
*outlen = inlen;
*out = xmalloc (*outlen);
memcpy (*out, in, inlen);
if (ivout)
*ivout = NULL;
if (ivoutlen)
*ivoutlen = 0;
return SHISHI_OK;
}
static int
null_random_to_key (Shishi * handle,
const char *rnd, size_t rndlen, Shishi_key * outkey)
{
return SHISHI_OK;
}
static int
null_string_to_key (Shishi * handle,
const char *password, size_t passwordlen,
const char *salt, size_t saltlen,
const char *parameter, Shishi_key * outkey)
{
return SHISHI_OK;
}
cipherinfo null_info = {
SHISHI_NULL,
"NULL",
1,
0,
0,
0,
SHISHI_RSA_MD5,
null_random_to_key,
null_string_to_key,
null_encrypt,
null_decrypt
};
|
