James A. Donald
Sun, 08 Nov 2009 10:08:14 -0800
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. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majord...@metzdowd.com