From: uri@watson.ibm.com Date: Tue, 26 Apr 1994 20:00:44 -0500 (EDT)
jpp@markv.com says:
Also, after reading Crypto '92 and '93 for a while, I am more and more impresed and suprised with the work that NSA put into creating ^^^ DES from Lucifer.
Surely you mean IBM?
[Also a similar message which I unfortuenatly deleted so I can't credit the author :(] No, my writing ability is not in error here -- my mental model of the history of DES is what is in error. I will now update my personal model of DES development to include two steps at IBM. Lucifer -> proto-DES at IBM, and proto-DES -> DES at NSA. Learn something new every day... Since about 1977 I wondered what the 'rediscovered crypto techniques' were. Thanks! j'