blob: 2c5d92f2c5fbd1458e8e8b36a8cf362c7790b452 (
plain)
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
|
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
*/
#include "tomcrypt.h"
/**
@file ofb_getiv.c
F8 implementation, get IV, Tom St Denis
*/
#ifdef LTC_F8_MODE
/**
Get the current initial vector
@param IV [out] The destination of the initial vector
@param len [in/out] The max size and resulting size of the initial vector
@param f8 The F8 state
@return CRYPT_OK if successful
*/
int f8_getiv(unsigned char *IV, unsigned long *len, symmetric_F8 *f8)
{
LTC_ARGCHK(IV != NULL);
LTC_ARGCHK(len != NULL);
LTC_ARGCHK(f8 != NULL);
if ((unsigned long)f8->blocklen > *len) {
*len = f8->blocklen;
return CRYPT_BUFFER_OVERFLOW;
}
XMEMCPY(IV, f8->IV, f8->blocklen);
*len = f8->blocklen;
return CRYPT_OK;
}
#endif
/* $Source: /cvs/libtom/libtomcrypt/src/modes/f8/f8_getiv.c,v $ */
/* $Revision: 1.2 $ */
/* $Date: 2006/06/16 22:49:25 $ */
|
