[145040] in cryptography@c2.net mail archive
Re: Security of Mac Keychain, Filevault
daemon@ATHENA.MIT.EDU (James A. Donald)
Sun Nov 8 13:07:56 2009
Date: Sun, 08 Nov 2009 20:28:56 +1000
From: "James A. Donald" <jamesd@echeque.com>
Reply-To: jamesd@echeque.com
To: Jerry Leichter <leichter@lrw.com>
CC: Cryptography List <cryptography@metzdowd.com>
In-Reply-To: <D7C7CCCB-298F-4A5E-87AF-BBE3B8B682EE@lrw.com>
Jerry Leichter wrote:
> NFC?
Near Field Communications - the wireless equivalent of
whispering in someone's ear. Ideally, a NFC chip should
only be able to talk to something that is an inch or so
away, and it should be impossible to eavesdrop from more
than a foot or so away.
Lots of people plan that smart phones shall do financial
transactions through NFC.
<http://www.intomobile.com/2009/04/10/visa-launches-nfc-
service-in-Malaysia.html>
: : Malaysians can now use their Nokia (NYSE:
: : NOK) 6212 to make near-field Visa payments
: : just wave your phone in front of a sensor and
: : bam, instant buy in over 1,800 shops.
These transactions are reversible and made through
authorized retailers, hence, like the widely shared
secret on a credit card, really need very little
security. Anyone to anyone irreversible transactions
would need considerably higher security, but there
appear to be considerable legal and regulatory obstacles
to that.
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