What is possible? What is not possible? Can major governments break the cryptography you use? Can the Mafia? How safe are you crossing borders? Is liquid nitrogen really useful in cryptanalysis? Find out this and more from a crypto guru. Ask your own questions.
Jon Callas is the Chief Technical Officer and Chief Security Officer of PGP Corporation. He is an author of cryptographic standards including OpenPGP and DKIM, and a frequent author and commentator. Jon has worked for a number of companies including Counterpane Internet Security, Apple, DEC, and others.