The Code Book

The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography is a book by Simon Singh, published in New York in 1999 by Doubleday.

The Code Book describes some illustrative highlights in the history of cryptography, drawn from both of its principal branches, codes and ciphers. Thus the book's title should not be misconstrued as suggesting that the book deals only with codes, and not with ciphers; or that the book is in fact a codebook.

Contents

The Code Book covers diverse historical topics including the Man in the Iron Mask, Arabic cryptography, Charles Babbage, the mechanisation of cryptography, the Enigma machine, and the decryption of Linear B and other ancient writing systems.

Later sections cover the development of public-key cryptography. Some of this material is based on interviews with participants, including persons who worked in secret at GCHQ.

The book concludes with a discussion of "pretty good privacy" (PGP), quantum computing, and quantum cryptography.

Code of non-infringement

The Code of Non-Infringement (or "The Code") refers to the accepted business practice and custom among certain performance artists, particularly clowns, that an artist's unique performance attributes are proprietary and cannot be used or claimed by another. Among clowns, these attributes may include stage names, costume elements, facial designs, as well as a clown's specific jokes or "gags" and "bits".

According to the code, no two performers may have exactly the same face or costume. Clown performers believe that the code is independent of any protection that may be afforded by the law, particularly intellectual property law.

See also

Code (disambiguation)

A code is a rule for converting a piece of information into another object or action, not necessarily of the same sort.

Code may also refer to:

Science and technology

Computing

The Code (2001 film)

The Code is a Finnish-made documentary about Linux from 2001, featuring some of the most influential people of the free software movement.

Featured advocates

Free software advocates or programmers
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Open-source advocates or programmers in the film

See also

External links