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Capstone is the name of a United States government long-term project to develop cryptography standards for public and government use. Capstone was driven by the NIST and the NSA; the project began in 1993[1]. The initiative involved four standard algorithms: a data encryption algorithm called Skipjack, along with the Clipper chip that included the Skipjack algorithm, a digital signature algorithm, DSA, a hash function, SHA-1, and a key exchange protocol.[2] Captstone's first implementation was in the Fortezza PCMCIA card. The German Lorenz cipher machine Cryptography or cryptology is a field of mathematics and computer science concerned with information security and related issues, particularly encryption and authentication. ...
As a non-regulatory agency of the United States Department of Commerce’s Technology Administration, the National Institute of Standards (NIST) develops and promotes measurement, standards, and technology to enhance productivity, facilitate trade, and improve the quality of life. ...
NSA seal The National Security Agency / Central Security Service (NSA/CSS) is believed to be the largest United States government intelligence agency. ...
1993 (MCMXCIII) was a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ...
This article is about algorithms for encryption and decryption. ...
The name Skipjack has several meanings: Skipjack the block cipher designed by the NSA. Skipjack tuna, a fish of the Scombridae (tuna) family. ...
The Clipper chip is a chipset that was developed and promoted by the U.S. Government as an encryption device to be adopted by telecommunications companies for voice transmission. ...
DSA may stand for: Driving Standards Agency, an Executive Agency of the British Department for Transport Das Schwarze Auge (German adventure role-playing game) Democratic Socialists of America Direct Selling Association Digital Signature Algorithm Directory System Agent, part of X.500 Directory Service Agent, part of Microsoft Exchange Distributed Systems...
The SHA (Secure Hash Algorithm) family is a set of related cryptographic hash functions designed by the National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST). ...
Key exchange is any method in cryptography which, naturally, exchanges keys between users, allowing use of a cryptographic algorithm. ...
Fortezza is also a town in Italy, see: Franzensfeste-Fortezza A Fortezza card made by Mykotronx Corp. ...
The PCMCIA is the Personal Computer Memory Card International Association, an industry trade association that creates standards for notebook computer peripheral devices. ...
The initiative encountered massive resistance from the cryptographic community, and eventually the US government abandoned the effort. The main reasons for this resistance were concerns about Skipjack's design, which was classified, and the use of key escrow in the clipper chip. The name Skipjack has several meanings: Skipjack the block cipher designed by the NSA. Skipjack tuna, a fish of the Scombridae (tuna) family. ...
Classified information is secret information to which access is restricted by law or corporate rules to a particular hierarchical class of people. ...
Key escrow is an arrangement in which the keys needed to decrypt encrypted data are held in escrow by a third party, so that someone else (typically government agencies) can obtain them to decrypt messages which they suspect to be relevant to national security. ...
See also
The Clipper chip is a chipset that was developed and promoted by the U.S. Government as an encryption device to be adopted by telecommunications companies for voice transmission. ...
The name Skipjack has several meanings: Skipjack the block cipher designed by the NSA. Skipjack tuna, a fish of the Scombridae (tuna) family. ...
Fortezza is also a town in Italy, see: Franzensfeste-Fortezza A Fortezza card made by Mykotronx Corp. ...
References - ↑ Original press release
- ↑ RSA Laboratories FAQ on Cryptography entry
- ↑ EFF archives on Capstone
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