A basic introduction to cryptography: ciphers, keys, keyspace, strength, cryptanalysis, etc. by Terry Ritter
This page describes encryption/decryption standards for leading countries, FAQ's about cryptography , their applications and implementations
Home page of the American Cryptogram Association. View a sample issue of The Cryptogram published by the American Cryptogram Association.
Check out the National Security Agency homepage to learn about the governments latest encryption techniques and efforts! Take a look at their National Cryptologic Museum to brush up on the historical aspect of this science.
Do you think you've got what it takes, decryptively speaking? Or do you want to see what this cryptography thing is all about? Then test your knowledge with this fun little game from KMR Consulting