| 摘要 |
The security of wireless communications between two or more devices is enhanced by requiring detection of the physical proximity of the devices. One or more of the devices operates in a non-secure mode, wherein the authentication process required to enter into secure communications is disabled. Upon detection of the physical proximity of another device, the device enters a secure mode, wherein authentication is enabled. The entry of a security code required by the authentication process may comprise the transmission of a device address or other data, either across the proximity detection interface or via the wireless communications interface. In addition to the detection of physical proximity, a hardware handshake protocol between the two devices may be defined. For additional security, the device must enter a handshake mode before the hardware handshake will complete. The handshake mode may require entry of a password or screening by a biometric sensor. Preferrably, the wireless communication system is based on the Bluetooth technology. <IMAGE>
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