This photo is a bit dated, but you get the idea of what I look like and what I like to do.


Jim teaching

Cryptography References

My son David and I published an algorithm for encrypting multiple messages within a single transmission. It appears in the December, 1999 Doctor Dobb's Journal. The source code for the encrypting program is mmpc_snd.c and the source code for the matching decrypting program is mmpc_rec.c. The complete source, including a Makefile and a Perl test script is available "tarred" and "gzipped" as article.tgz, or, for you Java aficionados, as a "jar" file, article.jar. You will need the Free Software Foundation's c compiler, gcc.