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# beecrypt/hmacsha256.c

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    00001
    00007 /*
    00008  * Copyright (c) 2000, 2001, 2002 Virtual Unlimited B.V.
    00009  *
    00010  * Author: Bob Deblier <bob@virtualunlimited.com>
    00011  *
    00012  * This library is free software; you can redistribute it and/or
    00013  * modify it under the terms of the GNU Lesser General Public
    00014  * License as published by the Free Software Foundation; either
    00015  * version 2.1 of the License, or (at your option) any later version.
    00016  *
    00017  * This library is distributed in the hope that it will be useful,
    00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00020  * Lesser General Public License for more details.
    00021  *
    00022  * You should have received a copy of the GNU Lesser General Public
    00023  * License along with this library; if not, write to the Free Software
    00024  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    00025  *
    00026  */
    00027
    00028 #include "system.h"
    00029 #include "hmacsha256.h"
    00030 #include "debug.h"
    00031
    00032 /*@-sizeoftype@*/
    00033 const keyedHashFunction hmacsha256 = { "HMAC-SHA-256", sizeof(hmacsha256Param), 64, 8 * sizeof(uint32), 64, 512, 32, (keyedHashFunctionSetup) hmacsha256Setup, (keyedHashFunctionReset) hmacsha256Reset, (keyedHashFunctionUpdate) hmacsha256Update, (keyedHashFunctionDigest) hmacsha256Digest };
    00034 /*@=sizeoftype@*/
    00035
    00036 /*@-type@*/
    00037 int hmacsha256Setup (hmacsha256Param* sp, const uint32* key, int keybits)
    00038 {
    00039         return hmacSetup(&sp->hparam, &sha256, &sp->sparam, key, keybits);
    00040 }
    00041
    00042 int hmacsha256Reset (hmacsha256Param* sp)
    00043 {
    00044         return hmacReset(&sp->hparam, &sha256, &sp->sparam);
    00045 }
    00046
    00047 int hmacsha256Update(hmacsha256Param* sp, const byte* data, int size)
    00048 {
    00049         return hmacUpdate(&sp->hparam, &sha256, &sp->sparam, data, size);
    00050 }
    00051
    00052 int hmacsha256Digest(hmacsha256Param* sp, uint32* data)
    00053 {
    00054         return hmacDigest(&sp->hparam, &sha256, &sp->sparam, data);
    00055 }
    00056 /*@=type@*/