| /* 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 $ */ |