[13151] in cryptography@c2.net mail archive
Re: eWeek: Cryptography Guru Paul Kocher Speaks Out
daemon@ATHENA.MIT.EDU (Sidney Markowitz)
Wed Apr 30 19:51:21 2003
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
From: "Sidney Markowitz" <sidney@sidney.com>
To: <cryptography@metzdowd.com>
Date: Thu, 1 May 2003 09:19:23 +1200
>> Kocher: [...] Then the studio can take measures to prevent
>> future movies from playing in that player. We're building a
>> stalemate. Attackers will break the security, but then the
>> content owner can have countermeasures.
>=20
> Given that Kocher is one of the smartest and savviest security
> experts out there, how can he make absurd statements like those
> above?
Since the "stalemate" is that one player might become disabled for =
future movies from at least one studio, perhaps these measures are only =
aimed at a threat model of individuals making their personal copies =
available for widespread distribution over P2P networks like Kazaa. =
Kocher could have said that and it was left out of the quotes, or he =
could have neglected to mention the threat model he is addressing and =
those he is not.
Clearly anyone who would go to the trouble of using five or more players =
to extract the watermark and make an untraceable copy for widespread =
distribution would also not be stopped by having to buy a player for =
cash or steal one or borrow one and sacrifice its eventual ability to =
play movies made after some future date.
-- sidney
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