The material here is part of a report prepared for a 1st Year Computer Science project many moons ago. It would have been torn down and packed away soon afterwards if it were not for the slow trickle of requests for more information that I still receive. There have been several occasions when I have thought "I might as well delete that useless stuff tomorrow" to then have an email arrive saying how useful it has been...

Whatever... hope you find it useful!

Classical Cryptography Report