57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/* bcal-eax.h */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
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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 BCALEAX_H_
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#define BCALEAX_H_
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#include <stdint.h>
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#include <string.h>
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#include "bcal-basic.h"
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#include "blockcipher_descriptor.h"
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#include "bcal-cmac.h"
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#include "bcal-ctr.h"
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typedef struct {
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uint8_t* nonce;
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bcal_cmac_ctx_t ntag;
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bcal_cmac_ctx_t ctag;
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bcal_cmac_ctx_t htag;
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bcal_ctr_ctx_t cipher;
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uint8_t blocksize_B;
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uint8_t header_set;
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} bcal_eax_ctx_t;
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uint8_t bcal_eax_init(const bcdesc_t *desc, const void *key, uint16_t keysize_b,
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bcal_eax_ctx_t *ctx);
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void bcal_eax_free(bcal_eax_ctx_t *ctx);
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void bcal_eax_loadNonce(const void *nonce, uint16_t length_b,
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bcal_eax_ctx_t *ctx);
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void bcal_eax_addNextHeader(const void *header, bcal_eax_ctx_t *ctx);
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void bcal_eax_addLastHeader(const void *header, uint16_t length_b,
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bcal_eax_ctx_t *ctx);
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void bcal_eax_encNextBlock(void *block, bcal_eax_ctx_t *ctx);
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void bcal_eax_encLastBlock(void *block, uint16_t length_b, bcal_eax_ctx_t *ctx);
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void bcal_eax_decNextBlock(void *block, bcal_eax_ctx_t *ctx);
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void bcal_eax_decLastBlock(void *block, uint16_t length_b, bcal_eax_ctx_t *ctx);
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void bcal_eax_ctx2tag(void *dest, uint16_t length_b, bcal_eax_ctx_t *ctx);
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//void bcal_eax(void *dest, uint16_t out_length_b, const void *block, uint32_t length_b, bcal_eax_ctx_t *ctx);
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#endif /* BCALEAX_H_ */
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