.\"	$OpenBSD: DSA_new.3,v 1.2 2016/11/06 15:52:50 jmc Exp $
.\"
.Dd $Mdocdate: November 6 2016 $
.Dt DSA_NEW 3
.Os
.Sh NAME
.Nm DSA_new ,
.Nm DSA_free
.Nd allocate and free DSA objects
.Sh SYNOPSIS
.In openssl/dsa.h
.Ft DSA*
.Fn DSA_new void
.Ft void
.Fo DSA_free
.Fa "DSA *dsa"
.Fc
.Sh DESCRIPTION
.Fn DSA_new
allocates and initializes a
.Vt DSA
structure.
It is equivalent to calling
.Fn DSA_new_method NULL .
.Pp
.Fn DSA_free
frees the
.Vt DSA
structure and its components.
The values are erased before the memory is returned to the system.
.Sh RETURN VALUES
If the allocation fails,
.Fn DSA_new
returns
.Dv NULL
and sets an error code that can be obtained by
.Xr ERR_get_error 3 .
Otherwise it returns a pointer to the newly allocated structure.
.Sh SEE ALSO
.Xr dsa 3 ,
.Xr DSA_generate_key 3 ,
.Xr DSA_generate_parameters 3 ,
.Xr ERR_get_error 3
.Sh HISTORY
.Fn DSA_new
and
.Fn DSA_free
are available in all versions of SSLeay and OpenSSL.