[14754] in cryptography@c2.net mail archive

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Re: Clipper for luggage

daemon@ATHENA.MIT.EDU (Peter Gutmann)
Sun Nov 16 14:03:23 2003

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Sun, 16 Nov 2003 20:00:03 +1300
From: pgut001@cs.auckland.ac.nz (Peter Gutmann)
To: cryptography@metzdowd.com, frantz@pwpconsult.com,
	novalis@novalis.org

Bill Frantz <frantz@pwpconsult.com> writes:

>I usually travel with zipper closed duffel bags.  I fasten the zipper closed
>with a screw link.  Anyone can unscrew the link and get into the bag, but it
>does effectively keep the zipper closed in transit.  I suppose it also
>provides some level of security because someone wanting to do a quick grab
>from luggage will probably pick a less-secured piece.

When true locks are banned, that's actually a rather good protection
mechanism, constituting a type of hashcash for luggage.  Someone who's looking
for targets of opportunity and has a choice between a Clipper-locked container
they can get into almost unnoticed in 5 seconds or something where it'll take
a minute or two of obvious fiddling will presumably go for the Clipper-lock.
Just don't go overboard with those custom foot-long screw machined "locks".

Peter.

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