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Content protection system, content protection method and content protection for device

机译:内容保护系统,内容保护方法和设备的内容保护

摘要

PROBLEM TO BE SOLVED: To prevent the leakage of content stored in an information terminal by utilizing sensing information, and to effectively protect the content.;SOLUTION: In this content protection system, a removable device 20 connected to the information terminal 10 for storing encrypted content is provided with a means for internally encrypting identification information and location information. The information terminal 10 receives information which is obtained by encrypting the identification information and the location information from the removable device 20, and transmits the information to a management server 30, and requests a key necessary for decoding the encrypted content. In the management server 30, the encrypted information of the key acquisition request is decrypted, and whether or not the decoded location information satisfies predetermined decryption propriety conditions is determined by a policy determination part 33, and when it is determined that the decryption propriety conditions are satisfied, the management server 30 transmits the key necessary for decrypting the encrypted content of the information terminal 10 to the information terminal 10.;COPYRIGHT: (C)2008,JPO&INPIT
机译:解决的问题:为了通过利用感测信息防止存储在信息终端中的内容泄漏,并有效地保护内容。解决方案:在该内容保护系统中,可移动设备20连接到信息终端10以存储加密的信息。内容具有用于内部加密标识信息和位置信息的装置。信息终端10从可移动设备20接收通过对识别信息和位置信息进行加密而获得的信息,并将该信息发送至管理服务器30,并请求对加密内容进行解码所需的密钥。在管理服务器30中,对密钥获取请求的加密信息进行解密,并且由策略确定部33确定解密的位置信息是否满足预定的解密适当条件,并且当确定解密适当条件为满足时,管理服务器30将解密信息终端10的加密内容所需的密钥发送到信息终端10。版权所有:(C)2008,JPO&INPIT

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