cx_blake2b.h

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/*******************************************************************************
 *   Ledger Nano S - Secure firmware
 *   (c) 2022 Ledger
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ********************************************************************************/
 
#ifndef CX_BLAKE2B_H
#define CX_BLAKE2B_H
 
#ifdef HAVE_BLAKE2
 
#include "lcx_wrappers.h"
#include "lcx_blake2.h"
#include <stdbool.h>
#include <stddef.h>
 
extern const cx_hash_info_t cx_blake2b_info;
 
WARN_UNUSED_RESULT cx_err_t cx_blake2b_update(cx_blake2b_t *ctx, const uint8_t *data, size_t len);
// No need to add WARN_UNUSED_RESULT to cx_blake2b_final(), it always returns CX_OK
cx_err_t cx_blake2b_final(cx_blake2b_t *ctx, uint8_t *digest);
size_t   cx_blake2b_get_output_size(const cx_blake2b_t *ctx);
 
struct cx_xblake_s {
    cx_blake2b_t blake2b;
    uint64_t     m[16];
    uint64_t     v[16];
    uint8_t      buffer[BLAKE2B_OUTBYTES];
    uint8_t      block1[BLAKE2B_BLOCKBYTES];
};
typedef struct cx_xblake_s cx_xblake_t;
 
#endif  // HAVE_BLAKE2
 
#endif  // CX_BLAKE2B_H