VDict - Definition of Data Encryption Standard

Computing (FOLDOC) dictionary

Data Encryption Standard

(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 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).

(1994-12-06)

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