[14347] in Cypherpunks
Re: (fwd) Re: NSA Helped Yeltsin Foil 1991 Coup
daemon@ATHENA.MIT.EDU (Eli Brandt)
Sat May 28 01:49:11 1994
To: cypherpunks list <cypherpunks@toad.com>
Date: Fri, 27 May 94 22:44:29 PDT
From: Eli Brandt <ebrandt@jarthur.cs.hmc.edu>
In-Reply-To: <m0q7Dbb-0003paC@jpplap>; from "Jay Prime Positive" at May 27, 94 6:54 pm
Jay said:
> It requires computing one extra xor per block.
Plus a truckload of good random numbers. To do it right, a hardware
RNG is in order. A PRNG really makes no sense, because if you
have a PRNG that strong, why not just use it as a stream cipher?
> that the actual increase in bandwidth for a three cypher system
> threshold in a practical encryption package like PGP would not be 2 to
> 1 since it likely compresses before encryption.)
To be fair, you need to compare compressed-and-split with
compressed-only. This *is* going to be a factor-of-3 size hit.
Eli ebrandt@hmc.edu
