providers/default/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 #include <string.h>
  12 #include <openssl/crypto.h>
  13 #include <openssl/evp.h>
  14 #include <openssl/params.h>
  15 #include <openssl/core_names.h>
  16 #include "internal/core_mkdigest.h"
  17 #include "internal/md5_sha1.h"
  18 #include "internal/provider_algs.h"
  19
  20 static OSSL_OP_digest_set_ctx_params_fn md5_sha1_set_ctx_params;
  21 static OSSL_OP_digest_settable_ctx_params_fn md5_sha1_settable_ctx_params;
  22
  23 static const OSSL_PARAM known_md5_sha1_settable_ctx_params[] = {
  24     {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},
  25     OSSL_PARAM_END
  26 };
  27
  28 static const OSSL_PARAM *md5_sha1_settable_ctx_params(void)
  29 {
  30     return known_md5_sha1_settable_ctx_params;
  31 }
  32
  33 /* Special set_params method for SSL3 */
  34 static int md5_sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
  35 {
  36     const OSSL_PARAM *p;
  37     MD5_SHA1_CTX *ctx = (MD5_SHA1_CTX *)vctx;
  38
  39     if (ctx != NULL && params != NULL) {
  40         p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);
  41         if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)
  42             return md5_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET, p->data_size,
  43                                  p->data);
  44     }
  45     return 0;
  46 }
  47
  48 OSSL_FUNC_DIGEST_CONSTRUCT_PARAMS(md5_sha1, MD5_SHA1_CTX,
  49                                   MD5_SHA1_CBLOCK, MD5_SHA1_DIGEST_LENGTH, 0,
  50                                   md5_sha1_init, md5_sha1_update, md5_sha1_final,
  51                                   md5_sha1_settable_ctx_params,
  52                                   md5_sha1_set_ctx_params)