Haskell implementation of the Threefish block cipher and the various fun things you can do with it as specified by the Skein 1.3 paper. This currently includes:
- Threefish block cipher
- Skein hash function
- Skein-MAC
- PRNG
- Stream cipher
- Key derivation function
There's also a convenience module that puts it all together, for a simple interface to authenticated encryption.
For Skein 256, this package is about 35% slower than the wrapped C version in
the skein package, so if you're only after the hash function you should use
that package instead. The 512 bit variant is written in pure Haskell, and
quite a bit slower still.