CrypTool 2 (CT2) is an open-source program offering an innovative visual programming GUI to experiment with cryptographic procedures and to animate their cascades.
MysteryTwister C3 (MTC3) is an international Crypto Cipher Contest offering a broad variety of challenges, a moderated forum and an ongoing hall-of-fame.
For CrypTool 1 it is planned to release version 1.4.31 in Q1/2012. This is a bugfix-only update. New features are going into the successors CrypTool 2 and JCrypTool.
