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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.
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