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A comment on 2011: The year your mobile phone becomes your wallet. Parent comment

Re:2011: The year your mobile phone becomes your wallet by fakespastic on Wednesday January 19, 2011 @04:18PM (#2121307)
Would have to be a rolling-key, I'm guessing...but as I mentioned in another comment, the interval would be the kicker. Maybe it's simpler, now that I think of it. A rolling-key system with 2-way authentication, a one-time key becoming invalid after a transaction is made.
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Re:2011: The year your mobile phone becomes your wallet by richcollins on Thursday January 20, 2011 @09:56PM (#2126257)
Couldn't you just type in a passphrase on your phone and have it sign the transaction?
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Re:2011: The year your mobile phone becomes your wallet by fakespastic on Friday January 21, 2011 @02:11PM (#2128468)
Whatever solution is created, I don't want to have to manually verify every transaction.
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