DSA_dup_DH - create a DH structure out of DSA structure
#include <openssl/dsa.h> DH * DSA_dup_DH(const DSA *r);
DSA_dup_DH(3openssl) OpenSSL DSA_dup_DH(3openssl)
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 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.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
SEE ALSO
dh(3), dsa(3), ERR_get_error(3)
HISTORY
DSA_dup_DH() was added in OpenSSL 0.9.4.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
1.0.2ze 2022-05-03 DSA_dup_DH(3openssl)