| 摘要 |
<p>The disclosure relates to a method for restricting access to media data generated by a camera (10). The method, comprises: setting a non-public initial user key (K ICU ) in the camera (10), providing a user client (16) with the initial user key (K ICU ), establishing an authenticated relation between the user client (16) and the camera (10) by sending an authentication message including information based on the initial user key (K ICU ) from the user client (16) to the camera (10), checking if an operational user key (Kocu) is set in the camera (10), and performing, in response to the act of checking if the operational user key (K OCU ) is set in the camera (10), the acts a) - d) only if the operational user key (K OCU ) is not set: a) acquiring an operational user key (K OCU ), b) setting the operational user key (K OCU ) in the camera (10), c) sending the operational user key (K OCU ) to the user client (16), and d) indicating in the camera (10) that the operational user key (K OCU ) is set. The method further comprises setting, in the camera (10), a media data encryption/decryption key associated with the operational user key (K OCU ), encrypting media data registered by the camera (10) using the media data encryption key, and sending the encrypted media data to a service provider management server (17).</p> |
