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Command: DSA_dup_DH | Section: 3 | Source: MINIX | File: DSA_dup_DH.3
DSA_dup_DH(3) OpenSSL DSA_dup_DH(3)
NAME
DSA_dup_DH - create a DH structure out of DSA structure
LIBRARY
libcrypto, -lcrypto
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 VALUE
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
openssl_dh(3), openssl_dsa(3), ERR_get_error(3)
HISTORY
DSA_dup_DH() was added in OpenSSL 0.9.4.
1.0.1n 2009-07-19 DSA_dup_DH(3)