Crypto: How the Code Rebels Beat the Government Saving Privacy in the Digital Age
Encyclopedia
Crypto: How the Code Rebels Beat the Government Saving Privacy in the Digital Age is a book written by Steven Levy
Steven Levy
Steven Levy is an American journalist who has written several books on computers, technology, cryptography, the Internet, cybersecurity, and privacy.-Career:...

 about cryptography
Cryptography
Cryptography is the practice and study of techniques for secure communication in the presence of third parties...

, and was published in 2001. Levy details the emergence of public key cryptography, digital signatures and the struggle between the NSA and the cypherpunk
Cypherpunk
A cypherpunk is an activist advocating widespread use of strong cryptography as a route to social and political change.Originally communicating through the Cypherpunks electronic mailing list, informal groups aimed to achieve privacy and security through proactive use of cryptography...

s. The book also details the creation of DES
Data Encryption Standard
The Data Encryption Standard is a block cipher that uses shared secret encryption. It was selected by the National Bureau of Standards as an official Federal Information Processing Standard for the United States in 1976 and which has subsequently enjoyed widespread use internationally. It is...

, RSA and the Clipper chip
Clipper chip
The Clipper chip was a chipset that was developed and promoted by the U.S. National Security Agency as an encryption device to be adopted by telecommunications companies for voice transmission...

.
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