I used the program ent extensively during the development of Eris.
NIST randomness testing software sts-2.0
Hashtest program for testing hash functions.
NIST SHA-3 contest page.
Random.org the source for the random number stator and rotor tables in versions 1, 2, and 3 of Eris. Version 4 uses Hera to generate the rotor data.
Dieharder Everything including the kitchen sink for testing randomness.
The CRC runs on a Arduino 'Micro' embedded controller with no problems with minor porting.
This link shows a graphic example of the problem that Athena attempts to solve.
