A CDE Definition
(1) (Digital Entertainment System) See digital media server.
(2) (Data Encryption Standard) A NIST-standard cryptographic cipher that uses a 56-bit key. Adopted by the NIST in 1977, it was replaced by AES in 2001 as the official standard. DES is a symmetric block cipher that processes 64-bit blocks in four different modes of operation, with the electronic code book (ECB) being the most popular.
By adding various multiple-pass methods, Triple DES increased security; for example, encrypting with one key, decrypting the results with a second key and encrypting it again with a third. However, the extra passes added considerable computing time to the process. DES is still used in applications that do not require the strongest security. See cipher, cryptography, NIST, AES and Fortezza.
Before/After Your Search Term
|TRILL bridge||triple dub|
|Trillian||triple level cell|
|TRIM support||triple SIM|
|trimode phone case||tristimulus|
Terms By Topic
Click any of the following categories for a list of fundamental terms.