NIST SPONSORS MODES OF OPERATION WORKSHOP.

In October 2000, NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology. sponsored a workshop to discuss modes of operation for the proposed Advanced Encryption Standard (cryptography, algorithm) Advanced Encryption Standard - (AES) The NIST's replacement for the Data Encryption Standard (DES). The Rijndael /rayn-dahl/ symmetric block cipher, designed by Joan Daemen and Vincent Rijmen, was chosen by a NIST contest to be AES. (AES). The workshop, held in Baltimore, MD, followed the 23rd National Information Systems Security Conference.

A symmetric key block cipher algorithm, such as the Data Encryption Standard See 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) specified in Federal Information Processing Standard Federal Information Processing Standards (FIPS) are publicly announced standards developed by the United States Federal government for use by all non-military government agencies and by government contractors. (FIPS (Federal Information Processing Standards) A series of publications issed by the U.S. National Institute of Standards and Technology (NIST) that specifies information security guidelines for federal government departments and agencies. ) 46-3 and the proposed Advanced Encryption Standard (AES), are implemented in various modes, depending on specific applications. The modes to be used for DES were defined in 1980 in FIPS 81 and were written to be very specific to DES. As the ABS development process nears its conclusion, the specific modes of operation for its use need to be addressed.

NIST will use the results of the workshop in developing a draft modes of operation standard. It is NIST's intention that the planned standard include the modes specified in FIPS 81, plus other modes needed for current applications and technology.

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Publication:	Journal of Research of the National Institute of Standards and Technology
Article Type:	Brief Article
Geographic Code:	1USA
Date:	Nov 1, 2000
Words:	153
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Topics:	Code generators Standards Data encryption Standards Software Safety and security measures

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