| =pod |
| |
| =head1 NAME |
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| RSA_size, RSA_bits - get RSA modulus size |
| |
| =head1 SYNOPSIS |
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| #include <openssl/rsa.h> |
| |
| int RSA_size(const RSA *rsa); |
| |
| int RSA_bits(const RSA *rsa); |
| |
| =head1 DESCRIPTION |
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| RSA_size() returns the RSA modulus size in bytes. It can be used to |
| determine how much memory must be allocated for an RSA encrypted |
| value. |
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| RSA_bits() returns the number of significant bits. |
| |
| B<rsa> and B<rsa-E<gt>n> must not be B<NULL>. |
| |
| =head1 RETURN VALUE |
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| The size. |
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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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| RSA_bits() was added in OpenSSL 1.1.0. |
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| =head1 COPYRIGHT |
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| Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. |
| |
| Licensed under the OpenSSL license (the "License"). You may not use |
| this file except in compliance with the License. You can obtain a copy |
| in the file LICENSE in the source distribution or at |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
