SP800-22b.pdf the Revised NIST Special Publication 800-22, " A Statistical Test Suite for the Validation of Random Number Generators and Pseudo Random Number Generators for Cryptographic Applications, " that describes the test suite. sts-1.5.tar for UNIX based platforms and contains all the code necessary to run the Statistical Test Suite. sts-1.6.zip for PC based platforms and contains the same code as the UNIX distribution plus a graphical user interface (GUI). The GUI assists in configuring the various tests as well as providing graphical output for analysis of the derived test data. sts.data.tar sample data derived from various sources (e.g., the expansion of e, the square root of 2, and the Blum-Blum-Shub pseudorandom bit generator) is also provided.