4cecf7a127
Providers that link against libcrypto can just use OBJ_nid2sn() to look up the name of an algorithm given a NID. However that doesn't work for the FIPS provider because OBJ_nid2sn() is not available there (due to the reliance of the code on ASN.1 types). Therefore we provider a new function to do this mapping. For providers linking against libcrypto the new function just wraps OBJ_nid2sn(). For the FIPS provider it has a look up for all the NIDs known there. Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/9035)
35 lines
992 B
Text
35 lines
992 B
Text
=pod
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=head1 NAME
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ossl_prov_util_nid_to_name
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- provider utility functions
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=head1 SYNOPSIS
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#include "internal/providercommon.h"
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const char *ossl_prov_util_nid_to_name(int nid);
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=head1 DESCRIPTION
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The ossl_prov_util_nid_to_name() returns the name of an algorithm given a NID
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in the B<nid> parameter. For the default and legacy providers it is equivalent
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to calling OBJ_nid2sn(). The FIPS provider does not have the object database
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code available to it (because that code relies on the ASN.1 code), so this
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function is a static lookup of all known FIPS algorithm NIDs.
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=head1 RETURN VALUES
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Returns a pointer to the algorithm name, or NULL on error.
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=head1 COPYRIGHT
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Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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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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L<https://www.openssl.org/source/license.html>.
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=cut
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