42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
/* hfal-hmac.h */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HFAL_HMAC_H_
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#define HFAL_HMAC_H_
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#include <avr/pgmspace.h>
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#include "hashfunction_descriptor.h"
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typedef struct {
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hfdesc_t *desc;
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void* ctx;
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void* finctx;
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} hfhmacgen_ctx_t;
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uint8_t hfal_hmac_init(const hfdesc_t *hash_descriptor, hfhmacgen_ctx_t *ctx, const void *key, uint16_t keylength_b);
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void hfal_hmac_nextBlock(hfhmacgen_ctx_t *ctx, const void *block);
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void hfal_hmac_lastBlock(hfhmacgen_ctx_t *ctx, const void *block, uint16_t length_b);
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void hfal_hmac_ctx2mac(void *dest, hfhmacgen_ctx_t *ctx);
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void hfal_hmac_free(hfhmacgen_ctx_t *ctx);
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void hfal_hmac_mem(const hfdesc_t *hash_descriptor, const void *key, uint16_t keylength_b, void *dest, const void *msg, uint32_t length_b);
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uint16_t hfal_hmac_getBlocksize(const hfdesc_t *hash_descriptor);
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uint16_t hfal_hmac_getMACsize(const hfdesc_t *hash_descriptor);
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#endif /* HFAL_HMAC_H_ */
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