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Re: Index for ftp site csn.org:/mpj/
> A bigger problem is that PEM uses DES rather than IDEA. I just learned
> of a new attack by Mitsuru Matsui of Mitsubishi that requires 2^43
> *known* plaintexts, not chosen ones. The note I received says that it
> ``breaks the scheme in 50 days on 12 HP9735 workstations''. This was
> presented last week at the Japanese Conference on Cryptography and
> Information Security.
RIPEM supports two key triple DES.
Mark