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NAME

DSA_dup_DH - create a DH structure out of DSA structure

SYNOPSIS

 #include <openssl/dsa.h>

 DH *DSA_dup_DH(const DSA *r);

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.

RETURN VALUES

DSA_dup_DH() returns the new DH structure, and NULL on error. The error codes can be obtained by ERR_get_error(3).

NOTE

Be careful to avoid small subgroup attacks when using this.

SEE ALSO

DH_new(3), DSA_new(3), ERR_get_error(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.