/*

 * Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (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

 */

#include "crypto/evp.h"

#include "prov/blake2.h"        /* diverse BLAKE2 macros */

#include "legacy_meth.h"

/*

 * Local hack to adapt the BLAKE2 init functions to what the

 * legacy function signatures demand.

 */

static int blake2s_init(BLAKE2S_CTX *C)

{

    BLAKE2S_PARAM P;

    ossl_blake2s_param_init(&P);

    return ossl_blake2s_init(C, &P);

}

static int blake2b_init(BLAKE2B_CTX *C)

{

    BLAKE2B_PARAM P;

    ossl_blake2b_param_init(&P);

    return ossl_blake2b_init(C, &P);

}

#define blake2s_update ossl_blake2s_update

#define blake2b_update ossl_blake2b_update

#define blake2s_final ossl_blake2s_final

#define blake2b_final ossl_blake2b_final

IMPLEMENT_LEGACY_EVP_MD_METH_LC(blake2s_int, blake2s)

IMPLEMENT_LEGACY_EVP_MD_METH_LC(blake2b_int, blake2b)

static const EVP_MD blake2b_md = {

    NID_blake2b512,

    0,

    BLAKE2B_DIGEST_LENGTH,

    0,

    EVP_ORIG_GLOBAL,

    LEGACY_EVP_MD_METH_TABLE(blake2b_int_init, blake2b_int_update,

                             blake2b_int_final, NULL, BLAKE2B_BLOCKBYTES),

};

const EVP_MD *EVP_blake2b512(void)

{

    return &blake2b_md;

}

static const EVP_MD blake2s_md = {

    NID_blake2s256,

    0,

    BLAKE2S_DIGEST_LENGTH,

    0,

    EVP_ORIG_GLOBAL,

    LEGACY_EVP_MD_METH_TABLE(blake2s_int_init, blake2s_int_update,

                             blake2s_int_final, NULL, BLAKE2S_BLOCKBYTES),

};

const EVP_MD *EVP_blake2s256(void)

{

    return &blake2s_md;

}