[18683] in cryptography@c2.net mail archive
printer "dot code" broken by EFF
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Tue Oct 18 12:15:15 2005
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
To: cryptography@metzdowd.com
From: "Perry E. Metzger" <perry@piermont.com>
Date: Tue, 18 Oct 2005 12:10:57 -0400
Many color printers these days include a subtle set of dots in the
output that encodes information on the printer that produced it,
allowing tracing of who printed what. EFF has broken the code on one
such line of printers:
http://www.eff.org/news/archives/2005_10.php#004063
http://www.eff.org/Privacy/printers/docucolor/
Perry
--
Perry E. Metzger perry@piermont.com
---------------------------------------------------------------------
The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com
