Hong Kong Applied Science and Technology Research Institute Company, Limited

Yiu-Wing Wat

Zhibin Lei

The claimed invention relates to system and method for providing encrypted content via a distribution networkwith efficient key distribution and distribution network assignment. The claimed invention assigns users to content-specific distribution network in which the content is broadcast. This makes the content access much more efficient by conducting the authorization at the time of joining the content-specific distribution network and providing the content to entitled users through broadcasting. The claimed invention provides additional security by removing a user from the content-specific distribution network when his entitlement is no longer valid.

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Hong Kong, China

Yiu-Wing Wat