November 24, 2009

DES

Last modified: Monday, September 20, 2004 

Short for Data Encryption Standard, a popular symmetric-key encryption method developed in 1975 and standardized by ANSI in 1981 as ANSI X.3.92. DES uses a 56-bit key and uses the block cipher method, which breaks text into 64-bit blocks and then encrypts them.

Also see Triple DES.

  Related Links

DRM Watch
Analysis of digital rights management technology.

NIST DES standard
Contains the text of the Federal Information Processing Standards Publication 46-2 announcing the standard for DES.

Related Categories

Digital Rights Management (DRM)

Encryption

Related Terms

AES

block

cryptography

symmetric-key cryptography

Triple DES

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