providers/implementations/digests/md5_sha1_prov.c

   1 /*
   2  * Copyright 2019 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_OP_digest_set_ctx_params_fn md5_sha1_set_ctx_params;
  26 static OSSL_OP_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(void)
  34 {
  35     return known_md5_sha1_settable_ctx_params;
  36 }
  37
  38 /* Special set_params method for SSL3 */
  39 static int md5_sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
  40 {
  41     const OSSL_PARAM *p;
  42     MD5_SHA1_CTX *ctx = (MD5_SHA1_CTX *)vctx;
  43
  44     if (ctx != NULL && params != NULL) {
  45         p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);
  46         if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)
  47             return md5_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET, p->data_size,
  48                                  p->data);
  49     }
  50     return 0;
  51 }
  52
  53 /* md5_sha1_functions */
  54 IMPLEMENT_digest_functions_with_settable_ctx(
  55     md5_sha1, MD5_SHA1_CTX, MD5_SHA1_CBLOCK, MD5_SHA1_DIGEST_LENGTH, 0,
  56     md5_sha1_init, md5_sha1_update, md5_sha1_final,
  57     md5_sha1_settable_ctx_params, md5_sha1_set_ctx_params)