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