The best cryptography playground available Demo @
https://8gwifi.org
How to Install
wget https://downloads.sourceforge.net/project/cryptography-playgroud/crypto-installer.tar
tar xvf crypto-installer.tar;cd crypto-installer
./bootstart.sh
Browse http://localhost:8080
This package provides the following pure Java extensions to the Bouncy Castle framework www.bouncycastle.org and was made freely available by www.novosec.com:
1. OCSP (RFC 2560) server and client /
2. CMP (RFC 2510, RFC 2511) generator and parser