PakCat catalogue record The Code Book The Scienceof Secrecy from Ancient Egypt to Quantum Cryptography By Simon Singh Bibliographic details ISBN9780385495325 PublisherAnchor Books New York Publication placeUnited States of America Publication year1999 Material typeBook Physical descriptionxvii, 410 p. Subjects1. Cryptography--History. 2. Data encryption (Computer science)--History.