Mercurial > dropbear
view src/modes/cbc/cbc_getiv.c @ 381:999a5eb4ed10 libtomcrypt-dropbear
propagate from branch 'au.asn.ucc.matt.ltc.orig' (head 52840647ac7f5c707c3bd158d119a15734a7ef28)
to branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 11 Jan 2007 02:39:21 +0000 |
parents | d5faf4814ddb |
children |
line wrap: on
line source
/* 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 cbc_getiv.c CBC implementation, get IV, Tom St Denis */ #ifdef LTC_CBC_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 cbc The CBC state @return CRYPT_OK if successful */ int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc) { LTC_ARGCHK(IV != NULL); LTC_ARGCHK(len != NULL); LTC_ARGCHK(cbc != NULL); if ((unsigned long)cbc->blocklen > *len) { *len = cbc->blocklen; return CRYPT_BUFFER_OVERFLOW; } XMEMCPY(IV, cbc->IV, cbc->blocklen); *len = cbc->blocklen; return CRYPT_OK; } #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_getiv.c,v $ */ /* $Revision: 1.6 $ */ /* $Date: 2006/06/29 01:46:46 $ */