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https://github.com/trezor/trezor-firmware.git
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51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* This file is part of the TREZOR project, https://trezor.io/
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*
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* Copyright (C) 2017 Saleem Rashid <trezor@saleemrashid.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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*
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* This library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __HASHER_H__
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#define __HASHER_H__
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#include <stddef.h>
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#include <stdint.h>
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#include "sha2.h"
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#define HASHER_DIGEST_LENGTH 32
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typedef enum {
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HASHER_SHA2,
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} HasherType;
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typedef struct {
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HasherType type;
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union {
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SHA256_CTX sha2;
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} ctx;
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} Hasher;
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void hasher_Init(Hasher *hasher, HasherType type);
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void hasher_Reset(Hasher *hasher);
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void hasher_Update(Hasher *hasher, const uint8_t *data, size_t length);
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void hasher_Final(Hasher *hasher, uint8_t hash[HASHER_DIGEST_LENGTH]);
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void hasher_Double(Hasher *hasher, uint8_t hash[HASHER_DIGEST_LENGTH]);
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void hasher_Raw(HasherType type, const uint8_t *data, size_t length, uint8_t hash[HASHER_DIGEST_LENGTH]);
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#endif
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