1/*
2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * MD5 and SHA-1 low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14#include "internal/deprecated.h"
15
16#include <string.h>
17#include <openssl/crypto.h>
18#include <openssl/evp.h>
19#include <openssl/params.h>
20#include <openssl/core_names.h>
21#include "prov/md5_sha1.h"
22#include "prov/digestcommon.h"
23#include "prov/implementations.h"
24
25static OSSL_FUNC_digest_set_ctx_params_fn md5_sha1_set_ctx_params;
26static OSSL_FUNC_digest_settable_ctx_params_fn md5_sha1_settable_ctx_params;
27
28static const OSSL_PARAM known_md5_sha1_settable_ctx_params[] = {
29    {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},
30    OSSL_PARAM_END
31};
32
33static const OSSL_PARAM *md5_sha1_settable_ctx_params(ossl_unused void *ctx,
34                                                      ossl_unused void *provctx)
35{
36    return known_md5_sha1_settable_ctx_params;
37}
38
39/* Special set_params method for SSL3 */
40static int md5_sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
41{
42    const OSSL_PARAM *p;
43    MD5_SHA1_CTX *ctx = (MD5_SHA1_CTX *)vctx;
44
45    if (ctx == NULL)
46        return 0;
47    if (params == NULL)
48        return 1;
49
50    p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);
51    if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)
52        return ossl_md5_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
53                                  p->data_size, p->data);
54    return 1;
55}
56
57/* ossl_md5_sha1_functions */
58IMPLEMENT_digest_functions_with_settable_ctx(
59    md5_sha1, MD5_SHA1_CTX, MD5_SHA1_CBLOCK, MD5_SHA1_DIGEST_LENGTH, 0,
60    ossl_md5_sha1_init, ossl_md5_sha1_update, ossl_md5_sha1_final,
61    md5_sha1_settable_ctx_params, md5_sha1_set_ctx_params)
62