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3dbf824380
There was recently an instance where a user was confused by the deprecation warnings in the docs. They believed the warning applied to the immediately preceding function declarations, when it fact it applied to the following function declarations. https://mta.openssl.org/pipermail/openssl-users/2021-December/014665.html We clarify the wording to make it clear that the warning applies to the following functions. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/17180)
66 lines
1.7 KiB
Plaintext
66 lines
1.7 KiB
Plaintext
=pod
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=head1 NAME
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RSA_size, RSA_bits, RSA_security_bits - get RSA modulus size or security bits
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=head1 SYNOPSIS
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#include <openssl/rsa.h>
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int RSA_bits(const RSA *rsa);
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The following functions have been deprecated since OpenSSL 3.0, and can be
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hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
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see L<openssl_user_macros(7)>:
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int RSA_size(const RSA *rsa);
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int RSA_security_bits(const RSA *rsa);
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=head1 DESCRIPTION
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RSA_bits() returns the number of significant bits.
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B<rsa> and B<rsa-E<gt>n> must not be B<NULL>.
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The remaining functions described on this page are deprecated.
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Applications should instead use L<EVP_PKEY_get_size(3)>, L<EVP_PKEY_get_bits(3)>
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and L<EVP_PKEY_get_security_bits(3)>.
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RSA_size() returns the RSA modulus size in bytes. It can be used to
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determine how much memory must be allocated for an RSA encrypted
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value.
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RSA_security_bits() returns the number of security bits of the given B<rsa>
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key. See L<BN_security_bits(3)>.
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=head1 RETURN VALUES
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RSA_bits() returns the number of bits in the key.
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RSA_size() returns the size of modulus in bytes.
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RSA_security_bits() returns the number of security bits.
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=head1 SEE ALSO
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L<BN_num_bits(3)>
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=head1 HISTORY
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The RSA_size() and RSA_security_bits() functions were deprecated in OpenSSL 3.0.
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The RSA_bits() function was added in OpenSSL 1.1.0.
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=head1 COPYRIGHT
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Copyright 2000-2021 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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