iKeyman is a GUI included with IBM Java to interact with certificates and private keys in a key database file. You will need to install IBM Java to use iKeyman. Then, to launch the iKeyman GUI, open ${java_install_root}/jre/bin/ikeyman (Linux). When you first launch iKeyman, you'll get a GUI like this.

• Create Key Database
• List certificates and private keys in a Key Database
• Create a self signed certificate
• Import a certificate
• Display certificate details
• Export a certificate and private key