METHOD AND DEVICES FOR MOBILE WALLET MULTI-FACTOR AUTHENTICATION

摘要

The invention provides methods and devices for authentication of transactions wherein a point of sale device sends a transaction identifier to a transaction verification system and a mobile device sends the transaction identifier or an irreversible one way hash value corresponding to the transaction identifier on an alternative communication path to the transaction verification system. In accordance with a preferred aspect, the mobile device transmits the transaction identifier or the irreversible one way hash value independent of the transmission by the POS device and more preferably, before the transaction between the POS device and the mobile device is complete. The process of message generation and transmission by the mobile device is substantially devoid of user intervention.