The MD2 and MD4 implementations were written by A.M. Kuchling, and the
MD5 code was implemented by Colin Plumb. The SHA1 code was originally
written by Peter Gutmann. The RIPEMD code was written by Antoon
Bosselaers, and adapted for the toolkit by Hirendra Hindocha. The
SHA256 code was written by Tom St. Denis and is part of the
LibTomCrypt library (http://www.libtomcrypt.org/); it was
adapted for the toolkit by Jeethu Rao and Taylor Boon.
