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nxdumptool/include/core/sha3.h
2023-04-08 13:42:22 +02:00

84 lines
2.3 KiB
C

/*
* sha3.h
*
* Copyright (c) Atmosphère-NX.
* Copyright (c) 2023, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
* Loosely based on crypto_sha3_impl.hpp from Atmosphere-libs.
*
* nxdumptool is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nxdumptool 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef __SHA3_H__
#define __SHA3_H__
#include <switch.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef SHA3_INTERNAL_STATE_SIZE
#define SHA3_INTERNAL_STATE_SIZE 200
#endif
#ifndef SHA3_HASH_SIZE_BYTES
#define SHA3_HASH_SIZE_BYTES(bits) ((bits) / 8)
#endif
#ifndef SHA3_BLOCK_SIZE
#define SHA3_BLOCK_SIZE(bits) (SHA3_INTERNAL_STATE_SIZE - (2 * SHA3_HASH_SIZE_BYTES(bits)))
#endif
#define _SHA3_CTX_OPS(bits) \
void sha3##bits##ContextCreate(Sha3Context *out); \
void sha3##bits##CalculateHash(void *dst, const void *src, size_t size);
/// Context for SHA3 operations.
typedef struct {
size_t hash_size;
size_t block_size;
size_t buffered_bytes;
u64 internal_state[SHA3_INTERNAL_STATE_SIZE / sizeof(u64)];
bool finalized;
} Sha3Context;
/// SHA3-224 context creation and simple all-in-one calculation functions.
_SHA3_CTX_OPS(224);
/// SHA3-256 context creation and simple all-in-one calculation functions.
_SHA3_CTX_OPS(256);
/// SHA3-384 context creation and simple all-in-one calculation functions.
_SHA3_CTX_OPS(384);
/// SHA3-512 context creation and simple all-in-one calculation functions.
_SHA3_CTX_OPS(512);
/// Updates SHA3 context with data to hash.
void sha3ContextUpdate(Sha3Context *ctx, const void *src, size_t size);
/// Gets the context's output hash, finalizes the context.
void sha3ContextGetHash(Sha3Context *ctx, void *dst);
#undef _SHA3_CTX_OPS
#ifdef __cplusplus
}
#endif
#endif /* __SHA3_H__ */