[Cryptography] NIST Workshop on Elliptic Curve Cryptography Standards

Ray Dillinger bear at sonic.net
Sat May 16 20:55:37 EDT 2015

On 05/16/2015 05:36 PM, Richard Outerbridge wrote:
> On 2015-05-16 (136), at 15:20:22, Ray Dillinger <bear at sonic.net> wrote:
>> [….]
>> The NSA, since people were still taking them seriously at the
>> time, could as easily have extended LUCIFER's rounds to justify
>> its (pathetic) 64-bit key with 64 bits of security, but they
>> chose instead to shorten the key to an (even more pathetic) 56
>> bits reflecting its security level (given its improved S-Boxes)
> LUCIFER uses a 128 bit key. And a 128 bit block.
> __outer

Checking into the history it looks as though several different
ciphers (or the same cipher at different block and key lengths)
have borne that name.

If I remember correctly the one considered in the DES competition
had a 64-bit key.  But I may be confused here.


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