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    • 2. 发明申请
    • METHOD AND APPARATUS FOR SECURELY MOVING AND RETURNING DIGITAL CONTENT
    • 用于安全移动和返回数字内容的方法和装置
    • WO2008008621A2
    • 2008-01-17
    • PCT/US2007/072174
    • 2007-06-27
    • GENERAL INSTRUMENT CORPORATIONMORONEY, PaulMEDVINSKY, Alexander
    • MORONEY, PaulMEDVINSKY, Alexander
    • G06Q99/00
    • G06F21/10G06F2221/0753G06F2221/0755G06F2221/0777
    • The present invention discloses an apparatus and method for transferring digital content data. In one example, original digital content data stored on a first device in an encrypted state is transcoded (after being decrypted) to create a modified version of the original digital content data. The modified version of the original digital content data is then encrypted with a new content key. The modified version and at least one content key generator are transferred to a second device, where the at least one content key generator is used to recreate the new content key for enabling (and decrypting) the modified version of the original digital content data at the second device. Notably, the original digital content data stored in the first device is disabled contemporaneously with the transfer of the modified version and the at least one content key generator to the second device. Afterwards, the disabled original digital content data is re-enabled on the first device, and disabled on the second device.
    • 本发明公开了一种用于传送数字内容数据的装置和方法。 在一个示例中,以加密状态存储在第一设备上的原始数字内容数据被转码(在被解密之后),以创建原始数字内容数据的修改版本。 然后用新的内容密钥对原始数字内容数据的修改版本进行加密。 修改版本和至少一个内容密钥生成器被传送到第二设备,其中使用至少一个内容密钥生成器来重新创建新的内容密钥,以便在(或)解密)原始数字内容数据的修改版本 第二设备 值得注意的是,存储在第一设备中的原始数字内容数据与修改版本和至少一个内容密钥生成器的传送同时被禁用到第二设备。 之后,禁用的原始数字内容数据在第一个设备上重新启用,并在第二个设备上禁用。
    • 6. 发明申请
    • METHOD AND APPARATUS FOR COMPOSING A DIGITAL RIGHTS MANAGEMENT LICENSE FORMAT
    • 用于组合数字权限管理许可格式的方法和装置
    • WO2009009191A2
    • 2009-01-15
    • PCT/US2008/060715
    • 2008-04-18
    • GENERAL INSTRUMENT CORPORATIONPETERKA, PetrMEDVINSKY, AlexanderMORONEY, Paul
    • PETERKA, PetrMEDVINSKY, AlexanderMORONEY, Paul
    • G06F21/10G06Q10/06
    • A process composes a content license for a set of content. The content license has a static portion and a dynamic portion. Further, the process inserts a master key into the static portion. In addition, the process inserts a plurality of content rule sets of values into the dynamic portion and composes a unique content encryption key for each segment of content associated with one of the content rule sets of values as each of the content rule sets of values is sequentially received during recording of the content. The unique content encryption key is based on the master key and at least a subset of the content rule set of values for a corresponding segment of the content. The unique content encryption key is utilized for encryption of each segment of the content to generate a plurality of encrypted content segments for storage on the storage medium.
    • 一个进程组成一组内容的内容许可证。 内容许可证具有静态部分和动态部分。 此外,该过程将主密钥插入静态部分。 此外,该过程将多个内容规则集值集合插入到动态部分中,并且对于与内容规则集值之一相关联的每个内容段,构成唯一内容加密密钥,因为每个内容规则集值是 在记录内容期间顺序地接收。 唯一内容加密密钥基于主密钥以及内容的相应段的内容规则集合的集合的至少一个子集。 独特的内容加密密钥用于加密内容的每个段,以生成用于存储在存储介质上的多个加密的内容段。