[Cryptography] Whitening Algorithm

[Ray Dillinger]

On 07/24/2015 04:02 PM, Ron Garret wrote:
> Wait, what???
> 
>>> ``Spritz is Rivest and Schuldt's redesign of RC4. It retains all of the
>>>  problems that RC4 had.
> 
> RC4 is broken.  If Spritz “retains all the problems that RC4 had” doesn’t that mean that Spritz is also broken?
> 

It retains the protocol particulars that RC4 had prior to its major
breakage - Initialization takes some time so it's got poor key
agility, should be used with an IV because it's a stream cipher
and becomes broken if a full key is reused, etc.  Those problems.
Not (at least not yet) the cryptographic break problem.

				Bear


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