DSA_DUP_DH(3)              Library Functions Manual              DSA_DUP_DH(3)

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.

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

SEE ALSO
     DH_new(3), DSA_get0_pqg(3), DSA_new(3)

HISTORY
     DSA_dup_DH() first appeared in OpenSSL 0.9.4 and has been available since
     OpenBSD 2.6.

CAVEATS
     Be careful to avoid small subgroup attacks when using this.

Linux 6.8.7-arch1-1             August 12, 2023            Linux 6.8.7-arch1-1