openssl/doc/crypto/DSA_dup_DH.pod
Richard Levitte b3c1d18d03 It makes more sense to refer to specific function manuals than the concept
manual when the specific function is refered to in the current manual text.
This correction was originally introduced in OpenBSD's tracking of OpenSSL.
2002-09-25 13:34:37 +00:00

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=pod
=head1 NAME
DSA_dup_DH - create a DH structure out of DSA structure
=head1 SYNOPSIS
#include <openssl/dsa.h>
DH * DSA_dup_DH(const DSA *r);
=head1 DESCRIPTION
DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q
is lost during that conversion, but the resulting DH parameters
contain its length.
=head1 RETURN VALUE
DSA_dup_DH() returns the new B<DH> structure, and NULL on error. The
error codes can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>.
=head1 NOTE
Be careful to avoid small subgroup attacks when using this.
=head1 SEE ALSO
L<dh(3)|dh(3)>, L<dsa(3)|dsa(3)>, L<ERR_get_error(3)|ERR_get_error(3)>
=head1 HISTORY
DSA_dup_DH() was added in OpenSSL 0.9.4.
=cut