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annotate libtomcrypt/src/mac/hmac/hmac_process.c @ 647:939cd3e22c87 dropbear-tfm

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- Fix constraints so we don't get warned about uninitialised variable (it isn't used as input by the asm)
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Nov 2011 23:15:21 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
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10 */
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11 #include "tomcrypt.h"
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13 /**
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14 @file hmac_process.c
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15 HMAC support, process data, Tom St Denis/Dobes Vandermeer
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16 */
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17
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18 #ifdef LTC_HMAC
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20 /**
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21 Process data through HMAC
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22 @param hmac The hmac state
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23 @param in The data to send through HMAC
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24 @param inlen The length of the data to HMAC (octets)
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25 @return CRYPT_OK if successful
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26 */
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27 int hmac_process(hmac_state *hmac, const unsigned char *in, unsigned long inlen)
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28 {
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29 int err;
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30 LTC_ARGCHK(hmac != NULL);
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31 LTC_ARGCHK(in != NULL);
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32 if ((err = hash_is_valid(hmac->hash)) != CRYPT_OK) {
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33 return err;
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34 }
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35 return hash_descriptor[hmac->hash].process(&hmac->md, in, inlen);
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36 }
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38 #endif
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41 /* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_process.c,v $ */
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42 /* $Revision: 1.5 $ */
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43 /* $Date: 2006/11/03 00:39:49 $ */