TinyCA is a simple GUI written in Perl-Gtk to manage a small certification authority. It works as a frontend to OpenSSL. TinyCA lets you manage x509 certificates. It is possible to export data in PEM or DER format for use with servers, as PKCS#12 for use with clients, or as S/MIME certificates for use with email programs.

a simple graphical userinterface written in Perl/Gtk to manage a small CA (Certification Authority)