]>
Commit | Line | Data |
---|---|---|
16fbda84 SL |
1 | /* |
2 | * Copyright 2020 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 | #include <openssl/objects.h> | |
11 | #include <openssl/core_names.h> | |
12 | #include <openssl/evp.h> | |
13 | #include <openssl/core.h> | |
14 | #include "prov/check.h" | |
15 | #include "internal/nelem.h" | |
16 | ||
17 | /* | |
18 | * Internal library code deals with NIDs, so we need to translate from a name. | |
19 | * We do so using EVP_MD_is_a(), and therefore need a name to NID map. | |
20 | */ | |
21 | int digest_md_to_nid(const EVP_MD *md, const OSSL_ITEM *it, size_t it_len) | |
22 | { | |
23 | size_t i; | |
24 | int mdnid = NID_undef; | |
25 | ||
26 | if (md == NULL) | |
27 | goto end; | |
28 | ||
29 | for (i = 0; i < it_len; i++) { | |
30 | if (EVP_MD_is_a(md, it[i].ptr)) { | |
31 | mdnid = (int)it[i].id; | |
32 | break; | |
33 | } | |
34 | } | |
35 | end: | |
36 | return mdnid; | |
37 | } | |
38 | ||
39 | /* | |
40 | * Retrieve one of the FIPs approved hash algorithms by nid. | |
41 | * See FIPS 180-4 "Secure Hash Standard" and FIPS 202 - SHA-3. | |
42 | */ | |
43 | int digest_get_approved_nid(const EVP_MD *md) | |
44 | { | |
45 | static const OSSL_ITEM name_to_nid[] = { | |
46 | { NID_sha1, OSSL_DIGEST_NAME_SHA1 }, | |
47 | { NID_sha224, OSSL_DIGEST_NAME_SHA2_224 }, | |
48 | { NID_sha256, OSSL_DIGEST_NAME_SHA2_256 }, | |
49 | { NID_sha384, OSSL_DIGEST_NAME_SHA2_384 }, | |
50 | { NID_sha512, OSSL_DIGEST_NAME_SHA2_512 }, | |
51 | { NID_sha512_224, OSSL_DIGEST_NAME_SHA2_512_224 }, | |
52 | { NID_sha512_256, OSSL_DIGEST_NAME_SHA2_512_256 }, | |
53 | { NID_sha3_224, OSSL_DIGEST_NAME_SHA3_224 }, | |
54 | { NID_sha3_256, OSSL_DIGEST_NAME_SHA3_256 }, | |
55 | { NID_sha3_384, OSSL_DIGEST_NAME_SHA3_384 }, | |
56 | { NID_sha3_512, OSSL_DIGEST_NAME_SHA3_512 }, | |
57 | }; | |
58 | ||
59 | return digest_md_to_nid(md, name_to_nid, OSSL_NELEM(name_to_nid)); | |
60 | } |