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1989 – Quantum cryptography experimentally demonstrated in a proof-of-the-principle experiment by Charles Bennett et al. 1991 – Phil Zimmermann releases the public key encryption program PGP along with its source code, which quickly appears on the Internet. 1994 – Bruce Schneier's Applied Cryptography is published.
The discovery and application, early on, of frequency analysis to the reading of encrypted communications has, on occasion, altered the course of history. Thus the Zimmermann Telegram triggered the United States' entry into World War I; and Allies reading of Nazi Germany 's ciphers shortened World War II, in some evaluations by as much as two ...
The Codebreakers – The Story of Secret Writing (ISBN 0-684-83130-9) is a book by David Kahn, published in 1967, comprehensively chronicling the history of cryptography from ancient Egypt to the time of its writing. The United States government attempted to have the book altered before publication, and it succeeded in part.
Kahn, David – The Codebreakers (1967) (ISBN 0-684-83130-9) A single-volume source for cryptographic history, at least for events up to the mid-'60s (i.e., to just before DES and the public release of asymmetric key cryptography). The added chapter on more recent developments (in the most recent edition) is quite thin.
Horst Feistel. Block Cipher Cryptographic System, US Patent 3,798,359. Filed June 30, 1971. (IBM) Henry Beker and Fred Piper (1982). Cipher Systems: The Protection of Communications.
The NCM includes an unclassified library of books, papers, and other materials relating to the history of cryptography and cryptology as well. [9] The library is open on days when the museum is open. The library is non-circulating (that is, material cannot be borrowed or checked out by the public), but photocopying and photography are allowed.
Other services demanded KW-26's and some 14000 units were eventually built, beginning in the early 1960s, for the U.S. Navy, Army, Air Force, Defense Communications Agency, State Department and the CIA. It was provided to U.S. allies as well. When the USS Pueblo was captured by North Korea in 1968, KW-26's were on board. In response, the NSA ...
In cryptography applications, a punched tape used to distribute a key can be rapidly and completely destroyed by burning, preventing the key from falling into the hands of an enemy. Reliability of paper tape punching operations was a concern, so that for critical applications a new punched tape could be read after punching to verify the correct ...
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