Data Encryption Standard


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Related to Data Encryption Standard: Advanced Encryption Standard

data encryption standard

[′dad·ə en‚krip·shən ′stan·dərd]
(communications)
A cryptographic algorithm of validated strength which is in the public domain and is accepted as a standard. Abbreviated DES.

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 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).
References in periodicals archive ?
For example, they have shown that, in principle, sequences of DNA operations could be used to crack a widely used, powerful cryptographic scheme known as the Data Encryption Standard.
Following a recommendation from the federal government's National Institute of Standards and Technology, the Secretary of Commerce has revised the Data Encryption Standard, which federal agencies and others use to scramble sensitive information.
Products incorporating a highly regarded cryptographic scheme known as the Data Encryption Standard should be easier to export, the panel suggested.
A symmetric key block cipher algorithm, such as the Data Encryption Standard (DES) specified in Federal Information Processing Standard (FIPS) 46-3 and the proposed Advanced Encryption Standard (AES), are implemented in various modes, depending on specific applications.

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