/*

 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

/*

 * Derived from the BLAKE2 reference implementation written by Samuel Neves.

 * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>

 * More information about the BLAKE2 hash function and its implementations

 * can be found at https://blake2.net.

 */

#include "internal/cryptlib.h"

#ifndef OPENSSL_NO_BLAKE2

# include <openssl/evp.h>

# include <openssl/objects.h>

# include "blake2_local.h"

# include "crypto/evp.h"

static int init(EVP_MD_CTX *ctx)

{

    return BLAKE2b_Init(EVP_MD_CTX_md_data(ctx));

}

static int update(EVP_MD_CTX *ctx, const void *data, size_t count)

{

    return BLAKE2b_Update(EVP_MD_CTX_md_data(ctx), data, count);

}

static int final(EVP_MD_CTX *ctx, unsigned char *md)

{

    return BLAKE2b_Final(md, EVP_MD_CTX_md_data(ctx));

}

static const EVP_MD blake2b_md = {

    NID_blake2b512,

    0,

    BLAKE2B_DIGEST_LENGTH,

    0,

    init,

    update,

    final,

    NULL,

    NULL,

    BLAKE2B_BLOCKBYTES,

    sizeof(EVP_MD *) + sizeof(BLAKE2B_CTX),

};

const EVP_MD *EVP_blake2b512(void)

{

    return &blake2b_md;

}

#endif