Some Software  Developed by Us, Our Friends and Collaborators

1. HOW to crack bitcoin passwords at a very high speed: brainflayer by Ryan Castellucci with code contributed by Nicolas Courtois and Guangyan Song.
2. Martin Albrecht, Nicolas T. Courtois, Daniel Hulme, Guangyan Song: Bit-Slice Implementation of PRESENT in pure standard C, v1.5, 26/08/2011, open-source code available at here.
3. Nicolas Courtois: Examples of equations generated for experiments with algebraic cryptanalysis and ready software for generating the equations, here.
4. Nicolas Courtois: Some algebraic cryptanalysis software made available for free, by Nicolas T. Courtois, here.
5. Courtois-Bard-Jefferson Java converter tool, as described here and presented at ECRYPT workshop Tools for Crypt-
   analysis 2007, a working windows distribution with source code is available here.