Information
Information
IACR's ePrint A database of cryptographic papers.
Light blue touchpaper A blog of the Security group at the University of Cambridge.
Matrix news Our very simple concentrator of security-related RSS feeds.
Encyclopedies of Cryptography
The Codebreakers (The Story of Secret Writing) - David Kahn (pdf file)
Military Cryptoanalysis Part I - William F. Friedman (pdf file)
Codes - The Guide To Secrecy From Acient To Modern Times - Richard A. Mollin (pdf file)