Article View: sci.crypt
Article #1572Re: Limits on the Use of Cryptography?
From: Terry Ritter
Date: Wed, 11 Nov 1992 22:28
Date: Wed, 11 Nov 1992 22:28
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1778 bytes
In quotable email, <mike@upolu.gsfc.nasa.gov> Mike Jones responds:
>This has little to do with sci.crypt
I disagree. Should society elect to limit the use of cryptography
by law this will affect cryptographic design. Systems may have
to archive old message keys, for example, or even ciphertext.
>You and I and everyone else knows how to get that
>information. Put the alleged child molester on the rack and use
>heated irons
>until you have the information.
Nonsense. Two possibilities are presented:
1) Require the use of registered crypto keys; if other keys are
actually used (as we expect), this would itself be a crime;
2) Require users of cryptography to reveal their keys (after due
process); if they did not (or *could* not), this would itself
be a crime.
Nobody gets heated irons; this is rule of law. The issue is
whether a normal legislator could be convinced that this would be
*bad* law.
>On a technical level, you know that a registered key will not
>guarantee the results can be decrypted. It may be XORed with an image of
>daisies.
The question of whether a defendant has provided the desired
plaintext can be addressed under oath by experts, and decided by
juries. Deciding issues of fact is what juries do.
---
Terry Ritter ritter@cactus.org
Technical Details
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<1992Nov11.061210.9933@cactus.org>Show Full Headers
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!ames!sun-barr!cs.utexas.edu!milano!cactus.org!ritter From: ritter@cactus.org (Terry Ritter) Subject: Re: Limits on the Use of Cryptography? Message-ID: <1992Nov11.222838.27134@cactus.org> Organization: Capital Area Central Texas UNIX Society, Austin, Tx References: <1992Nov11.061210.9933@cactus.org> Date: Wed, 11 Nov 1992 22:28:38 GMT Lines: 41