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. It is also possible to import your own PKCS#10 requests and generate certificates from them.