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      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 
     25 static OSSL_FUNC_digest_set_ctx_params_fn md5_sha1_set_ctx_params;
     26 static OSSL_FUNC_digest_settable_ctx_params_fn md5_sha1_settable_ctx_params;
     27 
     28 static 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 
     33 static 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 */
     40 static 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 (ossl_param_is_empty(params))
     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 */
     58 IMPLEMENT_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