Sorry, more links will be up within a week or two, apologies for delay.
Cryptonomicon is the latest novel from Neal Stephenson, If you liked Diamond age or Snow Crash, you will probably like Cryptonomicon even better.
Perl source for the "Pontifex" encryption system developed by Bruce, and described in Cryptonomicon is available at Counterpane's website. Note that the text form of the perl script in Cryptonomicon has a typo. (see Counterpane Systems inc for more info on "pontifex"