fletcher.h

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// SPDX-FileCopyrightText: 2021 deroad <wargio@libero.it>
// SPDX-License-Identifier: LGPL-3.0-only
 
#ifndef RZ_FLETCHER_H
#define RZ_FLETCHER_H
 
#include <rz_types.h>
 
#define RZ_HASH_FLETCHER8_DIGEST_SIZE 1
#define RZ_HASH_FLETCHER_BLOCK_LENGTH 0
 
typedef struct fletcher8_t {
    ut16 low, high;
} RzFletcher8;
 
bool rz_fletcher8_init(RzFletcher8 *ctx);
bool rz_fletcher8_update(RzFletcher8 *ctx, const ut8 *data, size_t len);
bool rz_fletcher8_final(ut8 *digest, RzFletcher8 *ctx);
 
#define RZ_HASH_FLETCHER16_DIGEST_SIZE 2
 
typedef struct fletcher16_t {
    ut32 low, high;
} RzFletcher16;
 
bool rz_fletcher16_init(RzFletcher16 *ctx);
bool rz_fletcher16_update(RzFletcher16 *ctx, const ut8 *data, size_t len);
bool rz_fletcher16_final(ut8 *digest, RzFletcher16 *ctx);
 
#define RZ_HASH_FLETCHER32_DIGEST_SIZE 4
 
typedef struct fletcher32_t {
    ut32 low, high;
} RzFletcher32;
 
bool rz_fletcher32_init(RzFletcher32 *ctx);
bool rz_fletcher32_update(RzFletcher32 *ctx, const ut8 *data, size_t len);
bool rz_fletcher32_final(ut8 *digest, RzFletcher32 *ctx);
 
#define RZ_HASH_FLETCHER64_DIGEST_SIZE 8
 
typedef struct fletcher64_t {
    ut32 low, high;
} RzFletcher64;
 
bool rz_fletcher64_init(RzFletcher64 *ctx);
bool rz_fletcher64_update(RzFletcher64 *ctx, const ut8 *data, size_t len);
bool rz_fletcher64_final(ut8 *digest, RzFletcher64 *ctx);
 
#endif /* RZ_FLETCHER_H */