Recommended Cracking and Cryptography Books APPLIED Applied Cryptography: Protocols, Algorithms, and Source Code in C, 2nd Edition by Bruce Schneier Cryptography and Network Security: Principles and Practice by William Stallings Handbook of Applied Cryptography by Alfred J. Menezes, et al Cracking DES: Secrets of Encryption Research, Wiretap Politics & Chip Design by Electronic Frontier Foundation, John Gilmore (Editor) Internet Cryptography by Richard E. Smith Internet Security for Business by Terry Bernstein (Editor) Java Security by Scott Oaks The Mathematics of Ciphers: Number Theory and RSA Cryptography by S. C. Coutinho The Official Pgp User's Guide by Philip R. Zimmermann HISTORY Between Silk and Cyanide : A Codemaker's War 1941-1945 by Leo Marks Codebreakers : The Inside Story of Bletchley Park F. H. Hinsley (Editor), Alan Stripp (Editor) The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet by David A. Kahn The Code Book : The Evolution of Secrecy from Mary, Queen of Scots to Quantum Cryptography by Simon Singh