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/params.h>
21 #include <openssl/core_names.h>
22 #include "prov/digestcommon.h"
23 #include "prov/implementations.h"
24 #include "crypto/sha.h"
25 
26 #define SHA2_FLAGS PROV_DIGEST_FLAG_ALGID_ABSENT
27 
28 static OSSL_FUNC_digest_set_ctx_params_fn sha1_set_ctx_params;
29 static OSSL_FUNC_digest_settable_ctx_params_fn sha1_settable_ctx_params;
30 
31 static const OSSL_PARAM known_sha1_settable_ctx_params[] = {
32     {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},
33     OSSL_PARAM_END
34 };
sha1_settable_ctx_params(ossl_unused void * ctx,ossl_unused void * provctx)35 static const OSSL_PARAM *sha1_settable_ctx_params(ossl_unused void *ctx,
36                                                   ossl_unused void *provctx)
37 {
38     return known_sha1_settable_ctx_params;
39 }
40 
41 /* Special set_params method for SSL3 */
sha1_set_ctx_params(void * vctx,const OSSL_PARAM params[])42 static int sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
43 {
44     const OSSL_PARAM *p;
45     SHA_CTX *ctx = (SHA_CTX *)vctx;
46 
47     if (ctx == NULL)
48         return 0;
49     if (params == NULL)
50         return 1;
51 
52     p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);
53     if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)
54         return ossl_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
55                               p->data_size, p->data);
56     return 1;
57 }
58 
59 /* ossl_sha1_functions */
60 IMPLEMENT_digest_functions_with_settable_ctx(
61     sha1, SHA_CTX, SHA_CBLOCK, SHA_DIGEST_LENGTH, SHA2_FLAGS,
62     SHA1_Init, SHA1_Update, SHA1_Final,
63     sha1_settable_ctx_params, sha1_set_ctx_params)
64 
65 /* ossl_sha224_functions */
66 IMPLEMENT_digest_functions(sha224, SHA256_CTX,
67                            SHA256_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,
68                            SHA224_Init, SHA224_Update, SHA224_Final)
69 
70 /* ossl_sha256_functions */
71 IMPLEMENT_digest_functions(sha256, SHA256_CTX,
72                            SHA256_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,
73                            SHA256_Init, SHA256_Update, SHA256_Final)
74 
75 /* ossl_sha384_functions */
76 IMPLEMENT_digest_functions(sha384, SHA512_CTX,
77                            SHA512_CBLOCK, SHA384_DIGEST_LENGTH, SHA2_FLAGS,
78                            SHA384_Init, SHA384_Update, SHA384_Final)
79 
80 /* ossl_sha512_functions */
81 IMPLEMENT_digest_functions(sha512, SHA512_CTX,
82                            SHA512_CBLOCK, SHA512_DIGEST_LENGTH, SHA2_FLAGS,
83                            SHA512_Init, SHA512_Update, SHA512_Final)
84 
85 /* ossl_sha512_224_functions */
86 IMPLEMENT_digest_functions(sha512_224, SHA512_CTX,
87                            SHA512_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,
88                            sha512_224_init, SHA512_Update, SHA512_Final)
89 
90 /* ossl_sha512_256_functions */
91 IMPLEMENT_digest_functions(sha512_256, SHA512_CTX,
92                            SHA512_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,
93                            sha512_256_init, SHA512_Update, SHA512_Final)
94