[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Still more on the Digicash protocol
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