Applied Cryptography: Protocols, Algorithms, and Source Code in C, 2nd Edition

BRUCE SCHNEIER is President of Counter-pane Systems, a consulting firm specializing in cryptography and computer security. He is a contributing editor to Dr. Dobb's Journal, serves on the board of directors of the International Association of Cryptologic Research, and is a member of the Advisory Board for the Electronic Privacy Information Center. He is the author of E-Mail Security (Wiley) and is a frequent lecturer on cryptography, computer security, and privacy.