providers/implementations/digests/sha2_prov.c

   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  * SHA low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <openssl/crypto.h>
  17 #include <openssl/core_dispatch.h>
  18 #include <openssl/evp.h>
  19 #include <openssl/sha.h>
  20 #include <openssl/evp.h>
  21 #include <openssl/params.h>
  22 #include <openssl/core_names.h>
  23 #include "prov/digestcommon.h"
  24 #include "prov/implementations.h"
  25 #include "crypto/sha.h"
  26
  27 #define SHA2_FLAGS PROV_DIGEST_FLAG_ALGID_ABSENT
  28
  29 static OSSL_FUNC_digest_set_ctx_params_fn sha1_set_ctx_params;
  30 static OSSL_FUNC_digest_settable_ctx_params_fn sha1_settable_ctx_params;
  31
  32 static const OSSL_PARAM known_sha1_settable_ctx_params[] = {
  33     {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},
  34     OSSL_PARAM_END
  35 };
  36 static const OSSL_PARAM *sha1_settable_ctx_params(ossl_unused void *ctx,
  37                                                   ossl_unused void *provctx)
  38 {
  39     return known_sha1_settable_ctx_params;
  40 }
  41
  42 /* Special set_params method for SSL3 */
  43 static int sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
  44 {
  45     const OSSL_PARAM *p;
  46     SHA_CTX *ctx = (SHA_CTX *)vctx;
  47
  48     if (ctx != NULL && params != NULL) {
  49         p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);
  50         if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)
  51             return ossl_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
  52                                   p->data_size, p->data);
  53     }
  54     return 0;
  55 }
  56
  57 /* ossl_sha1_functions */
  58 IMPLEMENT_digest_functions_with_settable_ctx(
  59     sha1, SHA_CTX, SHA_CBLOCK, SHA_DIGEST_LENGTH, SHA2_FLAGS,
  60     SHA1_Init, SHA1_Update, SHA1_Final,
  61     sha1_settable_ctx_params, sha1_set_ctx_params)
  62
  63 /* ossl_sha224_functions */
  64 IMPLEMENT_digest_functions(sha224, SHA256_CTX,
  65                            SHA256_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,
  66                            SHA224_Init, SHA224_Update, SHA224_Final)
  67
  68 /* ossl_sha256_functions */
  69 IMPLEMENT_digest_functions(sha256, SHA256_CTX,
  70                            SHA256_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,
  71                            SHA256_Init, SHA256_Update, SHA256_Final)
  72
  73 /* ossl_sha384_functions */
  74 IMPLEMENT_digest_functions(sha384, SHA512_CTX,
  75                            SHA512_CBLOCK, SHA384_DIGEST_LENGTH, SHA2_FLAGS,
  76                            SHA384_Init, SHA384_Update, SHA384_Final)
  77
  78 /* ossl_sha512_functions */
  79 IMPLEMENT_digest_functions(sha512, SHA512_CTX,
  80                            SHA512_CBLOCK, SHA512_DIGEST_LENGTH, SHA2_FLAGS,
  81                            SHA512_Init, SHA512_Update, SHA512_Final)
  82
  83 /* ossl_sha512_224_functions */
  84 IMPLEMENT_digest_functions(sha512_224, SHA512_CTX,
  85                            SHA512_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,
  86                            sha512_224_init, SHA512_Update, SHA512_Final)
  87
  88 /* ossl_sha512_256_functions */
  89 IMPLEMENT_digest_functions(sha512_256, SHA512_CTX,
  90                            SHA512_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,
  91                            sha512_256_init, SHA512_Update, SHA512_Final)
  92