mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 03:30:02 +00:00
c70e440128
This allows us to finely control when to use a single hash or a double hash in various places. For example, Bitcoin signatures use double SHA256, but Decred signatures use a single BLAKE256. However, both use double hashes for Base58.
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/**
|
|
* Copyright (c) 2017 Saleem Rashid
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
|
|
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __HASHER_H__
|
|
#define __HASHER_H__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "sha2.h"
|
|
#include "blake256.h"
|
|
|
|
#define HASHER_DIGEST_LENGTH 32
|
|
|
|
typedef enum {
|
|
HASHER_SHA2,
|
|
HASHER_BLAKE,
|
|
|
|
HASHER_SHA2D,
|
|
HASHER_BLAKED,
|
|
} HasherType;
|
|
|
|
typedef struct {
|
|
HasherType type;
|
|
|
|
union {
|
|
SHA256_CTX sha2;
|
|
BLAKE256_CTX blake;
|
|
} ctx;
|
|
} Hasher;
|
|
|
|
void hasher_Init(Hasher *hasher, HasherType type);
|
|
void hasher_Reset(Hasher *hasher);
|
|
void hasher_Update(Hasher *hasher, const uint8_t *data, size_t length);
|
|
void hasher_Final(Hasher *hasher, uint8_t hash[HASHER_DIGEST_LENGTH]);
|
|
|
|
void hasher_Raw(HasherType type, const uint8_t *data, size_t length, uint8_t hash[HASHER_DIGEST_LENGTH]);
|
|
|
|
#endif
|