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Re: [Fwd: Cylink can export 128-bit DH?]
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In article <[email protected]>,
Bill Frantz <[email protected]> wrote:
>At 12:22 AM 5/2/96 +0700, peng-chiew low wrote:
>>Daniel R. Oelke wrote:
>>> There are provisions for exporting DES for banking purposes.
>>> Generally it is a hardware card that "can't" be reused outside
>>> of the banking transfer machine.
>>
>>So far, I've seen DES software from a couple of U.S. companies. The question
>>is "Is it the U.S. domestic DES or "export flavored" DES? As for the hardware,
>>would'nt it be inconsistant if the DES supplied is the Domestic DES?
>
>As far as I know, DES is DES, domestic or export. If your DES
>interoperates with domestic DES (or popular implementations available on
>non-US servers), then you have DES.
Not quite. CDMF key shortening was designed by IBM to shrink a 56-bit DES
key to 40 bits, suitable for export. See AC2, page 366. I heard a rumour
that CDMF is in SET, but I'm not sure how much that makes sense.
- Ian
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