: 
: 
: "Numerical Recipes in C"..Fortran..Pascal  has a nice section on
: encryption and decryption based on the DES algorithm.  There is
: also source code provided (I think some versions of this book are 
: distributed with the source code on disk; the source code can
: also be ordered from the publisher).
: 
: --Victor Iseli
: victori@xetron.com

Yes I benchmarked the DES implementation in the Recipes in C
book.. it is about 1 1/2 orders of magnitude SLOWER than the
Outerbridge/Karn/Gillogly/et al implementation.

It may be instructional, but it isn't very fast.