Code book :

Singh, Simon.

Code book : the science of secrecy from ancient Egypt to quantum cryptography / Simon Singh. - New York : Anchor Books c1999. - xvii, 411 p. : ill., map ; 20 cm.

Rs.899/-
TB 2084/13

Includes bibliographical references (p. 388-393) and index.

9780385495325


Cryptography
Data encryption (Computer science)--History.

652.809 SIN

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