56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
RSA_size, RSA_bits, RSA_security_bits - get RSA modulus size or security bits
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
#include <openssl/rsa.h>
|
||
|
|
|
||
|
|
int RSA_size(const RSA *rsa);
|
||
|
|
|
||
|
|
int RSA_bits(const RSA *rsa);
|
||
|
|
|
||
|
|
int RSA_security_bits(const RSA *rsa)
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
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.
|
||
|
|
|
||
|
|
RSA_bits() returns the number of significant bits.
|
||
|
|
|
||
|
|
B<rsa> and B<rsa-E<gt>n> must not be B<NULL>.
|
||
|
|
|
||
|
|
RSA_security_bits() returns the number of security bits of the given B<rsa>
|
||
|
|
key. See L<BN_security_bits(3)>.
|
||
|
|
|
||
|
|
=head1 RETURN VALUES
|
||
|
|
|
||
|
|
RSA_size() returns the size of modulus in bytes.
|
||
|
|
|
||
|
|
DSA_bits() returns the number of bits in the key.
|
||
|
|
|
||
|
|
RSA_security_bits() returns the number of security bits.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<BN_num_bits(3)>
|
||
|
|
|
||
|
|
=head1 HISTORY
|
||
|
|
|
||
|
|
The RSA_bits() function was added in OpenSSL 1.1.0.
|
||
|
|
|
||
|
|
=head1 COPYRIGHT
|
||
|
|
|
||
|
|
Copyright 2000-2018 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
|