Mercurial > dropbear
view libtomcrypt/src/mac/xcbc/xcbc_memory.c @ 410:b895f91c2ee6
merge of 'b1dd3b94e60a07a176dba2b035ac79968595990a'
and 'bcb33fce2fad01a7626598209d43af3571bd86f0'
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sun, 04 Feb 2007 10:32:59 +0000 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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/* 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 xcbc_process.c XCBC Support, XCBC-MAC a block of memory */ #ifdef LTC_XCBC /** XCBC-MAC a block of memory @param cipher Index of cipher to use @param key [in] Secret key @param keylen Length of key in octets @param in [in] Message to MAC @param inlen Length of input in octets @param out [out] Destination for the MAC tag @param outlen [in/out] Output size and final tag size Return CRYPT_OK on success. */ int xcbc_memory(int cipher, const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *out, unsigned long *outlen) { xcbc_state *xcbc; int err; /* is the cipher valid? */ if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { return err; } /* Use accelerator if found */ if (cipher_descriptor[cipher].xcbc_memory != NULL) { return cipher_descriptor[cipher].xcbc_memory(key, keylen, in, inlen, out, outlen); } xcbc = XCALLOC(1, sizeof(*xcbc)); if (xcbc == NULL) { return CRYPT_MEM; } if ((err = xcbc_init(xcbc, cipher, key, keylen)) != CRYPT_OK) { goto done; } if ((err = xcbc_process(xcbc, in, inlen)) != CRYPT_OK) { goto done; } err = xcbc_done(xcbc, out, outlen); done: XFREE(xcbc); return err; } #endif /* $Source: /cvs/libtom/libtomcrypt/src/mac/xcbc/xcbc_memory.c,v $ */ /* $Revision: 1.4 $ */ /* $Date: 2006/11/21 23:02:42 $ */