meaning of data encryption standard
1. Data Encryption Standard DES The NBSs 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: des1, des3, des4.
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