Need info on Encyption book

[Matthew J Ghio]

> You'll learn how to protect your communications with
> techiques for transposing characters in text, replacing
> characters, with new ones, using arrays, and more.

Haha... sounds more like "How to encrypt messages so that prying eyes
can read them too."

Character substitution?  You'll need to do a lot better than that to
beat cryptanalysis.  A simple character substitution array wouldn't fool
most people on this list if they took a serious crack at it.