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Meaning of DATA ENCRYPTION STANDARD

 
Computing Dictionary
 
 Definition: 

(DES) The nbs's popular, standard encryption algorithm. It is a product cipher that operates on 64-bit blocks of data, using a 56-bit key. It is defined in fips 46-1 (1988) (which supersedes FIPS 46 (1977)). DES is identical to the ansi standard data encryption algorithm (DEA) defined in ANSI X3.92-1981.

DES has been implemented in vlsi. sunos provides a des command which can make use of DES hardware if fitted. Neither the software nor the hardware are supposed to be distributed outside the USA.

unix manual pages: des(1), des(3), des(4).

 

 

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