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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.

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For pages about DES . Also check out the following links!

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.

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related categories

Digital Rights Management (DRM)


related terms




symmetric-key cryptography

Triple DES

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