[79886] in Cypherpunks
Re: Unexportable crypto
daemon@ATHENA.MIT.EDU (Graham C. Hughes)
Tue May 13 01:52:52 1997
To: "ET" <emergent@eval-apply.com>
Cc: <cypherpunks@toad.com>
From: "Graham C. Hughes" <graham.hughes@resnet.ucsb.edu>
Date: 12 May 1997 10:13:43 -0700
In-Reply-To: "ET"'s message of Mon, 12 May 1997 12:18:10 -0400
Reply-To: "Graham C. Hughes" <graham.hughes@resnet.ucsb.edu>
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"ET" <emergent@eval-apply.com> writes:
> A simple substitution cypher has a keyspace of
> 26! ~ 2**88
> Isn't this too strong to export?
No. ITAR restricts key *size*, not keyspace. A substitution cypher
has a key size of 2**4 <= 26 <= 2**5, you're not going to get the
Feds pissed off at you about it.
- --
Graham Hughes http://A-abe.resnet.ucsb.edu/~graham/ MIME & PGP mail OK.
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