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/*
* FIPS-180-2 compliant SHA-2 implementation (only sha256 so far)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _SHA2_H
#define _SHA2_H
#include "ws_symbol_export.h"
#define SHA256_DIGEST_LEN 32
#define SHA256_BLOCK_SIZE 64
typedef struct
{
guint64 total;
guint32 state[8];
guint8 buffer[SHA256_BLOCK_SIZE];
}
sha256_context;
WS_DLL_PUBLIC
void sha256_starts( sha256_context *ctx );
WS_DLL_PUBLIC
void sha256_update( sha256_context *ctx, const guint8 *input, guint32 length );
WS_DLL_PUBLIC
void sha256_finish( sha256_context *ctx, guint8 digest[SHA256_DIGEST_LEN] );
typedef struct {
sha256_context ctx;
guint8 k_opad[SHA256_BLOCK_SIZE];
}
sha256_hmac_context;
WS_DLL_PUBLIC
void sha256_hmac_starts( sha256_hmac_context *hctx, const guint8 *key, guint32 keylen );
WS_DLL_PUBLIC
void sha256_hmac_update( sha256_hmac_context *hctx, const guint8 *buf, guint32 buflen );
WS_DLL_PUBLIC
void sha256_hmac_finish( sha256_hmac_context *hctx, guint8 digest[SHA256_DIGEST_LEN] );
WS_DLL_PUBLIC
void sha256_hmac( const guint8 *key, guint32 keylen, const guint8 *buf, guint32 buflen,
guint8 digest[SHA256_DIGEST_LEN] );
#endif /* _SHA2_H */
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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