| 主权项 |
1. A method for securing a bank account against an unauthorized access from a portable electronic device, the device comprising means for accessing the Internet and wireless communication means using a Bluetooth protocol, the securing being provided using an auxiliary security device, the auxiliary security device comprising wireless communication means using a Bluetooth protocol, wherein the portable electronic device is adapted for controlling a bank account via the Internet, the method comprising:
i) assigning a serial number along with an address and a key comprising a private part and a public part to an auxiliary security device, wherein said address and said public part of the key of the auxiliary security device are stored in a data processing system of a banking institution; ii) assigning the auxiliary security device to said portable electronic device in order to make both devices ready for interacting during the calculation of the key required for accessing the bank account from the portable electronic device; iii) wherein the portable electronic device employs the Bluetooth protocol to locate said assigned auxiliary security device in the vicinity; and iv) wherein, when a corresponding Bluetooth signal being transmitted by said assigned auxiliary security device is detected by said portable electronic device and found as having at least a predetermined strength, calculating the key required for accessing the bank account on the basis of a combination of information that is indicative of the key stored in the portable electronic device and data that is indicative of the key stored in the auxiliary security device assigned thereto. |
