1=pod 2 3=head1 NAME 4 5DSA_size, DSA_bits, DSA_security_bits - get DSA signature size, key bits or security bits 6 7=head1 SYNOPSIS 8 9 #include <openssl/dsa.h> 10 11 int DSA_size(const DSA *dsa); 12 int DSA_bits(const DSA *dsa); 13 int DSA_security_bits(const DSA *dsa); 14 15=head1 DESCRIPTION 16 17DSA_size() returns the maximum size of an ASN.1 encoded DSA signature 18for key B<dsa> in bytes. It can be used to determine how much memory must 19be allocated for a DSA signature. 20 21B<dsa-E<gt>q> must not be B<NULL>. 22 23DSA_bits() returns the number of bits in key B<dsa>: this is the number 24of bits in the B<p> parameter. 25 26DSA_security_bits() returns the number of security bits of the given B<dsa> 27key. See L<BN_security_bits(3)>. 28 29=head1 RETURN VALUES 30 31DSA_size() returns the signature size in bytes. 32 33DSA_bits() returns the number of bits in the key. 34 35=head1 SEE ALSO 36 37L<DSA_new(3)>, L<DSA_sign(3)> 38 39=head1 COPYRIGHT 40 41Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. 42 43Licensed under the OpenSSL license (the "License"). You may not use 44this file except in compliance with the License. You can obtain a copy 45in the file LICENSE in the source distribution or at 46L<https://www.openssl.org/source/license.html>. 47 48=cut 49