- NAME
- SYNOPSIS
- DESCRIPTION
- RETURN VALUE
- SEE ALSO
- HISTORY

# 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, DSA_sign

# HISTORY

`DSA_size()` is available in all versions of SSLeay and OpenSSL.