/* * This file is part of the TREZOR project, https://trezor.io/ * * Copyright (C) 2017 Saleem Rashid * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see . */ #ifndef __HASHER_H__ #define __HASHER_H__ #include #include #include "sha2.h" #define HASHER_DIGEST_LENGTH 32 typedef enum { HASHER_SHA2, } HasherType; typedef struct { HasherType type; union { SHA256_CTX sha2; } 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_Double(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