| 摘要 |
A mobile computing device 100, preferably a mobile telephone, is brought into proximity with an authentication tag 101 with which the device communicates. Preferably, the authentication tag 101 comprises a passive radio-frequency identification (RFID) tag 107 within the dimensions of a credit card and the device employs near-field communication (NFC) technology. A communication module of the device causes the tag to transmit authentication data 109, possibly a tag-ID and preferably encrypted and stored as an NFC definition (NDEF) record 108, which is validated by the device. If the data is valid the device executes a secure function such as launching a secure application, which may be associated with an application-ID held in second authentication data from the tag, which IDs must match. The secure application may be an account access application, e.g, a mobile "wallet", and may communicate with a remote server to update account details such as virtual bank cards. Activation of the secure function may comprise activation of a virtual bank card for payment via a contactless payment point.
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