On Tue, 11 Jan 2005 02:11:36 +0900, Alex Martin Ugalde <alex.martin / eresmas.com> wrote: > Sure, start with: > Applied Cryptography (http://www.schneier.com/book-applied.html) > CODEBREAKERS (http://www.amazon.com/exec/obidos/tg/detail/-/0684831309/qid=1105377049/sr=8-2/ref=pd_csp_2/102-8920925-7800956?v=glance&s=books&n=507846) Ah, yes, I forgot about "The Codebreakers". It is sort-of a history of cryptography, and it is pretty long, but it's a good one too.