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beecrypt/hmacsha256.h

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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 #ifndef _HMACSHA256_H
00029 #define _HMACSHA256_H
00030 
00031 #include "hmac.h"
00032 #include "sha256.h"
00033 
00036 typedef struct
00037 {
00038         hmacParam hparam;
00039         sha256Param sparam;
00040 } hmacsha256Param;
00041 
00042 #ifdef __cplusplus
00043 extern "C" {
00044 #endif
00045 
00048 /*@observer@*/ /*@checked@*/
00049 extern BEECRYPTAPI const keyedHashFunction hmacsha256;
00050 
00053 /*@-exportlocal@*/
00054 BEECRYPTAPI
00055 int hmacsha256Setup (hmacsha256Param* sp, const uint32* key, int keybits)
00056         /*@globals sha256 @*/
00057         /*@modifies sp @*/;
00058 /*@=exportlocal@*/
00059 
00062 /*@-exportlocal@*/
00063 BEECRYPTAPI
00064 int hmacsha256Reset (hmacsha256Param* sp)
00065         /*@globals sha256 @*/
00066         /*@modifies sp @*/;
00067 /*@=exportlocal@*/
00068 
00071 /*@-exportlocal@*/
00072 BEECRYPTAPI
00073 int hmacsha256Update(hmacsha256Param* sp, const byte* data, int size)
00074         /*@globals sha256 @*/
00075         /*@modifies sp @*/;
00076 /*@=exportlocal@*/
00077 
00080 /*@-exportlocal@*/
00081 BEECRYPTAPI
00082 int hmacsha256Digest(hmacsha256Param* sp, uint32* data)
00083         /*@globals sha256 @*/
00084         /*@modifies sp, data @*/;
00085 /*@=exportlocal@*/
00086 
00087 #ifdef __cplusplus
00088 }
00089 #endif
00090 
00091 #endif

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