Peter J. Jones wrote the Bzip2 module, which was additionally used as a basis
for the Zlib module. Many thanks to him.

Thanks to Hany Greiss, Darren Starsmore, Dan Nicolaescu, and others I'm
probably forgetting, for sending bug reports and suggestions. And extra thanks
to Hany Greiss, who single-handedly did the Visual C++ port.

Thanks to Ying-Chieh Liao for maintaining the FreeBSD port.

The implementation of DES is based off a public domain implementation by Phil
Karn from 1994 (he, in turn, credits Richard Outerbridge and Jim Gillogly).

Matthew Skala's public domain twofish.c (as given in GnuPG 0.9.8) provided
the basis for my Twofish code (mostly in the key schedule).

Rijndael and Square are based on the reference implementations written by
the inventors, Joan Daemen and Vincent Rijmen.

ThreeWay is based on reference code written by Joan Daemen.

The Serpent Sboxes used were discovered by Dag Arne Osvik and detailed in
his paper "Speeding Up Serpent".

Some of the hash functions (MD5, SHA-1, etc) use an optimized implementation of
one of the boolean functions, which was discovered by Colin Plumb.

The design of Randpool takes some of it's design principles from those
suggested by Eric A. Young in his SSLeay documentation and Peter Guttman's
paper "Software Generation of Practically Strong Random Numbers".

X917's design was changed from the X9.17 standard in response to attacks
presented in the paper "Cryptanalytic Attacks on Pseudorandom Number
Generators", by Kelsey, Schneier, Wagner, and Hall.
