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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/crypto/openssl/providers/implementations/digests/md5_sha1_prov.c
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/*

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 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.

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 *

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 * Licensed under the Apache License 2.0 (the "License").  You may not use

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

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 * in the file LICENSE in the source distribution or at

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

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 */

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/*

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 * MD5 and SHA-1 low level APIs are deprecated for public use, but still ok for

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 * internal use.

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 */

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#include "internal/deprecated.h"

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#include <string.h>

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#include <openssl/crypto.h>

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#include <openssl/evp.h>

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#include <openssl/params.h>

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#include <openssl/core_names.h>

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#include "prov/md5_sha1.h"

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#include "prov/digestcommon.h"

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#include "prov/implementations.h"

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static OSSL_FUNC_digest_set_ctx_params_fn md5_sha1_set_ctx_params;

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static OSSL_FUNC_digest_settable_ctx_params_fn md5_sha1_settable_ctx_params;

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static const OSSL_PARAM known_md5_sha1_settable_ctx_params[] = {

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    {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},

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    OSSL_PARAM_END

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};

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static const OSSL_PARAM *md5_sha1_settable_ctx_params(ossl_unused void *ctx,

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                                                      ossl_unused void *provctx)

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{

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    return known_md5_sha1_settable_ctx_params;

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}

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/* Special set_params method for SSL3 */

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static int md5_sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])

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{

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    const OSSL_PARAM *p;

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    MD5_SHA1_CTX *ctx = (MD5_SHA1_CTX *)vctx;

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    if (ctx == NULL)

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        return 0;

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    if (ossl_param_is_empty(params))

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        return 1;

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    p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);

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    if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)

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        return ossl_md5_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,

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                                  p->data_size, p->data);

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    return 1;

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}

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/* ossl_md5_sha1_functions */

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IMPLEMENT_digest_functions_with_settable_ctx(

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    md5_sha1, MD5_SHA1_CTX, MD5_SHA1_CBLOCK, MD5_SHA1_DIGEST_LENGTH, 0,

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    ossl_md5_sha1_init, ossl_md5_sha1_update, ossl_md5_sha1_final,

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    md5_sha1_settable_ctx_params, md5_sha1_set_ctx_params)

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