Still more on the Digicash protocol

[Rev. Mark Grant]

On Thu, 7 Dec 1995, David A Wagner wrote:

>Tough!?  It's trivial for an active attacker, in the stream cipher case.
>He just xors some bits: no clever cryptanalysis needed.  (Or did you mean
>it's tough to mount an active attack?  I agree: that requires significant
>knowledge or motivation.)

Exactly.. once you have an active attack set up, it's trivial, but setting
that up is quite hard. 

	Mark