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DSA_size(3) OpenSSL DSA_size(3) NAME DSA_size, DSA_bits, DSA_security_bits - get DSA signature size, key bits or security bits LIBRARY libcrypto, -lcrypto 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 DSA_new(3), DSA_sign(3) 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>. 1.1.1i 2018-09-23 DSA_size(3)