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=pod
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=head1 NAME
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2015-04-18 18:23:12 +08:00
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RSA_size, RSA_bits - get RSA modulus size
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=head1 SYNOPSIS
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2015-04-18 18:23:12 +08:00
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#include <openssl/rsa.h>
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2015-04-18 18:23:12 +08:00
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int RSA_size(const RSA *rsa);
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int RSA_bits(const RSA *rsa);
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=head1 DESCRIPTION
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2015-04-18 18:23:12 +08:00
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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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2015-04-18 18:23:12 +08:00
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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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=head1 RETURN VALUE
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2015-04-18 18:23:12 +08:00
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The size.
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=head1 SEE ALSO
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2016-06-10 04:39:19 +08:00
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L<BN_num_bits(3)>
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=head1 HISTORY
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2015-04-18 18:23:12 +08:00
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RSA_bits() was added in OpenSSL 1.1.0.
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2016-05-18 23:44:05 +08:00
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=head1 COPYRIGHT
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Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (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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