The mpilib.c, mpilib.h, platform.h, and usuals.h in the lib/ directory are
taken from the PGP 2.3 source distribution (Copyright 1986-92 by Philip
Zimmermann), which is distributed under the GPL, as stated below.

Excerpt from pgpdoc2.txt (contained in pgp23src.zip):
"All the source code for PGP is available for free under the "Copyleft" 
General Public License from the Free Software Foundation (FSF)."

Arne de Bruijn
arne@knoware.nl
