DSA_size.3ssl man page
DSA_size, DSA_bits, DSA_security_bits — get DSA signature size, key bits or security bits
Synopsis
#include <openssl/dsa.h>
int DSA_size(const DSA *dsa);
int DSA_bits(const DSA *dsa);
int DSA_security_bits(const DSA *dsa);Description
DSA_size() returns the maximum size of an ASN.1 encoded DSA signature for key dsa in bytes. It can be used to determine how much memory must be allocated for a DSA signature.
dsa->q must not be NULL.
DSA_bits() returns the number of bits in key dsa: this is the number of bits in the p parameter.
DSA_security_bits() returns the number of security bits of the given dsa key. See BN_security_bits(3).
Return Values
DSA_size() returns the signature size in bytes.
DSA_bits() returns the number of bits in the key.
See Also
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 <https://www.openssl.org/source/license.html>.
Referenced By
BN_num_bytes.3ssl(3), dsa.3ssl(3), DSA_get0_pqg.3ssl(3), DSA_meth_new.3ssl(3).