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DSA_size(3) LibreSSL DSA_size(3)

NAME

DSA_size - get DSA signature size

SYNOPSIS


#include <openssl/dsa.h>

int DSA_size(const DSA *dsa);

DESCRIPTION

This function returns the size of an ASN.1 encoded DSA signature in bytes. It can be used to determine how much memory must be allocated for a DSA signature.
dsa->q must not be NULL.

RETURN VALUE

The size in bytes.

SEE ALSO

dsa(3), DSA_sign(3)

HISTORY

DSA_size() is available in all versions of SSLeay and OpenSSL.
2015-10-26 LibreSSL
Copyright 2011-2025 Jonas 'Sortie' Termansen and contributors.
Sortix's source code is free software under the ISC license.
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