58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* ecdsa.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 ECDSA_H_
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#define ECDSA_H_
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#include "ecc.h"
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#include "hashfunction_descriptor.h"
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typedef struct{
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bigint_t r;
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bigint_t s;
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} ecdsa_signature_t;
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typedef bigint_t ecdsa_privkey_t;
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typedef ecc_affine_point_t ecdsa_pubkey_t;
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typedef struct{
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ecdsa_privkey_t *priv;
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ecdsa_pubkey_t *pub;
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ecc_curve_sp_t *curve;
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ecc_chudnovsky_point_t *basepoint;
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} ecdsa_ctx_t;
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typedef uint8_t(*rand_func_ptr_t)(void);
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#define ECDSA_SIGNATURE_OK 1
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#define ECDSA_SIGNATURE_FAIL 0
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uint8_t ecdsa_sign_bigint(ecdsa_signature_t *s, const bigint_t *m,
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const ecdsa_ctx_t *ctx, const bigint_t *k);
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uint8_t ecdsa_sign_message(ecdsa_signature_t *s, const void *m, uint16_t m_len_b,
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const hfdesc_t *hash_desc, const ecdsa_ctx_t *ctx,
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const void *rand_in);
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uint8_t ecdsa_verify_bigint(const ecdsa_signature_t *s, const bigint_t *m,
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const ecdsa_ctx_t *ctx);
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uint8_t ecdsa_verify_message(const ecdsa_signature_t *s, const void *m, uint16_t m_len_b,
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const hfdesc_t *hash_desc, const ecdsa_ctx_t *ctx);
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#endif /* ECDSA_H_ */
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