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59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*
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* Copyright 2020-2024 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include "internal/deprecated.h"
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#include <openssl/objects.h>
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#include <openssl/core_names.h>
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#include <openssl/evp.h>
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#include <openssl/core.h>
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#include "prov/securitycheck.h"
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#include "internal/nelem.h"
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/*
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* Internal library code deals with NIDs, so we need to translate from a name.
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* We do so using EVP_MD_is_a(), and therefore need a name to NID map.
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*/
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int ossl_digest_md_to_nid(const EVP_MD *md, const OSSL_ITEM *it, size_t it_len)
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{
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size_t i;
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if (md == NULL)
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return NID_undef;
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for (i = 0; i < it_len; i++)
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if (EVP_MD_is_a(md, it[i].ptr))
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return (int)it[i].id;
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return NID_undef;
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}
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/*
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* Retrieve one of the FIPS approved hash algorithms by nid.
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* See FIPS 180-4 "Secure Hash Standard" and FIPS 202 - SHA-3.
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*/
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int ossl_digest_get_approved_nid(const EVP_MD *md)
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{
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/* TODO: FIPS 180-5 RFC 8692 RFC 8702 allow SHAKE */
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static const OSSL_ITEM name_to_nid[] = {
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{ NID_sha1, OSSL_DIGEST_NAME_SHA1 },
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{ NID_sha224, OSSL_DIGEST_NAME_SHA2_224 },
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{ NID_sha256, OSSL_DIGEST_NAME_SHA2_256 },
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{ NID_sha384, OSSL_DIGEST_NAME_SHA2_384 },
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{ NID_sha512, OSSL_DIGEST_NAME_SHA2_512 },
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{ NID_sha512_224, OSSL_DIGEST_NAME_SHA2_512_224 },
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{ NID_sha512_256, OSSL_DIGEST_NAME_SHA2_512_256 },
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{ NID_sha3_224, OSSL_DIGEST_NAME_SHA3_224 },
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{ NID_sha3_256, OSSL_DIGEST_NAME_SHA3_256 },
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{ NID_sha3_384, OSSL_DIGEST_NAME_SHA3_384 },
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{ NID_sha3_512, OSSL_DIGEST_NAME_SHA3_512 },
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};
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return ossl_digest_md_to_nid(md, name_to_nid, OSSL_NELEM(name_to_nid));
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}
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