mirror of https://github.com/openssl/openssl
72 lines
2.3 KiB
Plaintext
72 lines
2.3 KiB
Plaintext
=pod
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=head1 NAME
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EVP_set_default_properties, EVP_default_properties_enable_fips,
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EVP_default_properties_is_fips_enabled
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- Set default properties for future algorithm fetches
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=head1 SYNOPSIS
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#include <openssl/evp.h>
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int EVP_set_default_properties(OSSL_LIB_CTX *libctx, const char *propq);
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int EVP_default_properties_enable_fips(OSSL_LIB_CTX *libctx, int enable);
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int EVP_default_properties_is_fips_enabled(OSSL_LIB_CTX *libctx);
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=head1 DESCRIPTION
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EVP_set_default_properties() sets the default properties for all
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future EVP algorithm fetches, implicit as well as explicit. See
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L<crypto(7)/ALGORITHM FETCHING> for information about implicit and explicit
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fetching.
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EVP_set_default_properties stores the properties given with the string
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I<propq> among the EVP data that's been stored in the library context
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given with I<libctx> (NULL signifies the default library context).
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Any previous default property for the specified library context will
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be dropped.
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EVP_default_properties_enable_fips() sets the 'fips=yes' to be a default property
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if I<enable> is non zero, otherwise it clears 'fips' from the default property
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query for the given I<libctx>. It merges the fips default property query with any
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existing query strings that have been set via EVP_set_default_properties().
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EVP_default_properties_is_fips_enabled() indicates if 'fips=yes' is a default
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property for the given I<libctx>.
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=head1 NOTES
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EVP_set_default_properties() and EVP_default_properties_enable_fips() are not
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thread safe. They are intended to be called only during the initialisation
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phase of a I<libctx>.
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=head1 RETURN VALUES
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EVP_set_default_properties() and EVP_default_properties_enable_fips() return 1
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on success, or 0 on failure. An error is placed on the error stack if a
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failure occurs.
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EVP_default_properties_is_fips_enabled() returns 1 if the 'fips=yes' default
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property is set for the given I<libctx>, otherwise it returns 0.
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=head1 SEE ALSO
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L<EVP_MD_fetch(3)>
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=head1 HISTORY
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The functions described here were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2019-2021 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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