This directory contains the sources for the DES encryption library and test programs. Two precautions-- 1) under US law, DES software and hardware may not be exported without license from the US Dept of Commerce. 2) The only way to get a significant speedup of the algorithm is to use considerably more space, traded against time. Dont play with the code -- there is a high probability you will either make it slower, or wrong, or both. This implementation was optimized for the UVAX 2. Other architectures could benefit from some "asm" tweaking. 3) If you do play with the code, make sure that the test program "verify" still yields the expected answers. Otherwise, your ciphertext will not decrypt under a standard implementation, such as on the VLSI chips that have been certified. Project Athena Steve Miller 3/86