spritz

This is an implementation of the Spritz spongy RC4-like stream cipher which was documented by Ronald L. Rivest and Jacob C. N. Schuldt.

This implementation is a direct one, based on the pseudocode presented in the original paper. As such, we make very heavy use of the State monad (and the lens library to ease our use of it). Future work could (and should) be done to limit or eliminate our use of State.

The functions provided align with the functions presented in the paper, aside from slight naming and style convention changes.

License

BSD-2. See LICENSE for more information.