| 摘要 |
<p>Commonly used mobile devices provide authenticated access to the device through the manual entry of personal identification numbers (PINs). Third generation devices will potentially contain a large amount of user sensitive data and there is a need for increased security on the devices to prevent unauthorised access. However, increasing the number of manually entered PINs or passwords is inconvenient to the user. These problems are overcome providing authorisation to access the electronic device via a series of radio signals between the electronic device and a radio module which is paired to the device. The module is carried separately from the device and, when authorisation is required, the device automatically attempts to detect the presence of the radio module. In order to detect the presence of the module, the device transmits a search signal to the module (130). The radio module receives (140) the search signal from the device and transmits an authorisation signal in response (100). On receiving (170) the authorisation signal the electronic device provides the user with access to the restricted application (185). If the electronic device does not receive an authorisation signal from the module, access to the electronic device is initially refused and the user may be required to provide further authorisation, for example using a PIN, in order to access the restricted application.</p> |
