Mercurial > dropbear
diff src/modes/lrw/lrw_getiv.c @ 380:d5faf4814ddb libtomcrypt-orig libtomcrypt-1.16
Update to LibTomCrypt 1.16
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 11 Jan 2007 02:22:00 +0000 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/modes/lrw/lrw_getiv.c Thu Jan 11 02:22:00 2007 +0000 @@ -0,0 +1,45 @@ +/* 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, [email protected], http://libtomcrypt.com + */ +#include "tomcrypt.h" + +/** + @file lrw_getiv.c + LRW_MODE implementation, Retrieve the current IV, Tom St Denis +*/ + +#ifdef LTC_LRW_MODE + +/** + Get the IV for LRW + @param IV [out] The IV, must be 16 octets + @param len Length ... must be at least 16 :-) + @param lrw The LRW state to read + @return CRYPT_OK if successful +*/ +int lrw_getiv(unsigned char *IV, unsigned long *len, symmetric_LRW *lrw) +{ + LTC_ARGCHK(IV != NULL); + LTC_ARGCHK(len != NULL); + LTC_ARGCHK(lrw != NULL); + if (*len < 16) { + *len = 16; + return CRYPT_BUFFER_OVERFLOW; + } + + XMEMCPY(IV, lrw->IV, 16); + *len = 16; + return CRYPT_OK; +} + +#endif +/* $Source: /cvs/libtom/libtomcrypt/src/modes/lrw/lrw_getiv.c,v $ */ +/* $Revision: 1.9 $ */ +/* $Date: 2006/06/29 01:53:13 $ */