NBS (National Bureau of Standards) <unk>now named NIST (National Institute of Standards and Technology) <unk>identified a need for a government-wide standard for encrypting unclassified, sensitive information. Accordingly, on 15 May 1973, after consulting with the NSA, NBS solicited proposals for a cipher that would meet rigorous design criteria. None of the submissions, however, turned out to be suitable. A second request was issued on 27 August 1974. This time, IBM submitted a candidate which was deemed acceptable<unk>a cipher developed during the 19731974 period<unk> based on an earlier algorithm, Feistel Horst's Lucifer involved DES. The team at IBM included Walter Feistelman, Walter Feistelman, Alan Coppersmith, Roy Bryant, Mike Grossman, Don Bryant, Don Bryant, Mike Adler, Brian Grossman, and Mike Adler.
kutanga kwema1970