except that many triple DES implementations use the same key for the first
and third encryption. So it is really "double DES + some an extra
encryption to make it look noisy"
As for triple RC5, I don't know why one would do that, since the RC5
algorithm is parameterized to allow key sizes of up to 128 bits already.
===
Evan Jeffrey
erjeffre@artsci.wustl.edu
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all progress
depends on the unreasonable man.