|DSA_DUP_DH(3)||Library Functions Manual||DSA_DUP_DH(3)|
create a DH structure out of DSA structure
DSA_dup_DH(const DSA *r);
duplicates DSA parameters/keys as
DH parameters/keys. r->q is
lost during that conversion, but the resulting DH
parameters contain its length.
DSA_dup_DH() returns the new
DH structure or
NULL on error.
The error codes can be obtained by
DSA_dup_DH() first appeared in OpenSSL
0.9.4 and has been available since OpenBSD 2.6.
Be careful to avoid small subgroup attacks when using this.
|June 10, 2019||OpenBSD-current|