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Content sharing device under control and content sharing control device, as well as, content sharing the control program and content sharing control program
Content sharing device under control and content sharing control device, as well as, content sharing the control program and content sharing control program
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机译:受控制的内容共享设备和内容共享控制设备,以及内容共享控制程序和内容共享控制程序
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摘要
PROBLEM TO BE SOLVED: To provide a content sharing controller and a content sharing device to be controlled, and a content sharing control program and a content sharing program to be controlled capable of sharing content between receiving side devices via an external network under the control of a broadcasting company without the needing of a large amount of management cost.;SOLUTION: The content sharing controller 1 shares and uses content in receiving side devices by transmitting content sharing permission information Ic being information indicating that content obtained by decrypting encrypted content received by a receiving side can be handled as sharing content shared between the receiving side devices and content storage key information obtained by encrypting a content storage key Kc for reencrypting the sharing content with a work key Kw, and is provided with a content storage key information generating means 9 and a multiplexed signal transmitting means 13.;COPYRIGHT: (C)2008,JPO&INPIT
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