How to create self signed certificate

[Suat Ugurlu]

Hello,
As you know, we can create self signed certificates using keytool.
Does anyone know How we can create a self signed certificate without using keytool.
I want to create the certificate in my program according to the input
given by the user (CN, O,...etc..)

Thanks, Suat.

[Ulf Dittmer]

This section of the Sun Java Tutorial shows how to do it.