1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis 2 * 3 * LibTomCrypt is a library that provides various cryptographic 4 * algorithms in a highly modular and flexible manner. 5 * 6 * The library is free for all purposes without any express 7 * guarantee it works. 8 * 9 * Tom St Denis, tomstdenis (at) gmail.com, http://libtomcrypt.com 10 */ 11 #include "tomcrypt.h" 12 13 /** 14 @file cbc_setiv.c 15 CBC implementation, set IV, Tom St Denis 16 */ 17 18 19 #ifdef LTC_CBC_MODE 20 21 /** 22 Set an initial vector 23 @param IV The initial vector 24 @param len The length of the vector (in octets) 25 @param cbc The CBC state 26 @return CRYPT_OK if successful 27 */ 28 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc) 29 { 30 LTC_ARGCHK(IV != NULL); 31 LTC_ARGCHK(cbc != NULL); 32 if (len != (unsigned long)cbc->blocklen) { 33 return CRYPT_INVALID_ARG; 34 } 35 XMEMCPY(cbc->IV, IV, len); 36 return CRYPT_OK; 37 } 38 39 #endif 40 41 42 /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_setiv.c,v $ */ 43 /* $Revision: 1.5 $ */ 44 /* $Date: 2006/06/29 01:46:46 $ */ 45
