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公开(公告)号：US09277295B2
公开(公告)日：2016-03-01
申请号：US11454421
申请日：2006-06-16
IPC分类号： G06F21/00 , H04N21/8355 , G06F21/10 , H04N7/167 , H04N21/254 , H04N21/433 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/4627 , H04N21/4788 , H04N21/835
CPC分类号： H04N21/4627 , G06F21/10 , H04N7/1675 , H04N21/2541 , H04N21/4331 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/4788 , H04N21/63345 , H04N21/835 , H04N21/8355
摘要： An embodiment of a system for securing media content includes a digital media device comprising a memory associated with a secure element. The memory contains a private key and storage for at least one group key. The private key is used to decrypt transmissions from a remote access control system that are encrypted by a corresponding public key. The digital media device further comprises logic configured to respond to a first message received from the remote access control system encrypted by the public key and including a first group key, the logic responding to the first message by decrypting the first group key and storing the first group key in the memory of the secure element. The digital media device further comprises logic configured to decrypt a content key with the first group key. The content key is used to encrypt media content stored on a medium accessible by the digital media device.
摘要翻译： 用于保护媒体内容的系统的实施例包括包括与安全元件相关联的存储器的数字媒体设备。 内存包含至少一个组密钥的私钥和存储。 私钥用于解密由相应公钥加密的远程访问控制系统的传输。 所述数字媒体设备还包括被配置为对由所述公开密钥加密的所述远程访问控制系统接收的第一消息进行响应并包括第一组密钥的逻辑，所述第一组密钥通过解密所述第一组密钥并存储所述第一组密钥来响应所述第一消息 组密钥在安全元素的内存中。 数字媒体设备还包括被配置为利用第一组密钥解密内容密钥的逻辑。 内容密钥用于加密由数字媒体设备可访问的媒体上存储的媒体内容。
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公开(公告)号：US20070294178A1
公开(公告)日：2007-12-20
申请号：US11454421
申请日：2006-06-16
IPC分类号： G06Q99/00
CPC分类号： H04N21/4627 , G06F21/10 , H04N7/1675 , H04N21/2541 , H04N21/4331 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/4788 , H04N21/63345 , H04N21/835 , H04N21/8355
摘要： An embodiment of a system for securing media content includes a digital media device comprising a memory associated with a secure element. The memory contains a private key and storage for at least one group key. The private key is used to decrypt transmissions from a remote access control system that are encrypted by a corresponding public key. The digital media device further comprises logic configured to respond to a first message received from the remote access control system encrypted by the public key and including a first group key, the logic responding to the first message by decrypting the first group key and storing the first group key in the memory of the secure element. The digital media device further comprises logic configured to decrypt a content key with the first group key. The content key is used to encrypt media content stored on a medium accessible by the digital media device.
摘要翻译： 用于保护媒体内容的系统的实施例包括包括与安全元件相关联的存储器的数字媒体设备。 内存包含至少一个组密钥的私钥和存储。 私钥用于解密由相应公钥加密的远程访问控制系统的传输。 所述数字媒体设备还包括被配置为对由所述公开密钥加密的所述远程访问控制系统接收的第一消息进行响应并包括第一组密钥的逻辑，所述第一组密钥通过解密所述第一组密钥并存储所述第一组密钥来响应所述第一消息 组密钥在安全元素的内存中。 数字媒体设备还包括被配置为利用第一组密钥解密内容密钥的逻辑。 内容密钥用于加密由数字媒体设备可访问的媒体上存储的媒体内容。
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