I just started writing a C++/Qt program to easily generate OpenVPN client key pairs, certificates, and .ovpn config files containing them. I have the non-GUI portion, the actual key, certificate, and .ovpn file generation, working using the OpenSSL library. Later today I'll work on the GUI.
Both server and client default settings, such as the server name or IP, and the X509 DN (distinguished name: C, ST, L, O, OU, and CN) will be persisted in an XML file.
1/