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    • 74. 发明授权
    • Encryption scheme for streamed multimedia content protected by rights management system
    • 受权限管理系统保护的流式多媒体内容加密方案
    • US08325916B2
    • 2012-12-04
    • US12702148
    • 2010-02-08
    • Eduardo P. OliveiraGeoffrey DunbarJames M. Alkove
    • Eduardo P. OliveiraGeoffrey DunbarJames M. Alkove
    • H04K1/00
    • H04N7/1675H04N21/2347H04N21/4405H04N21/835H04N21/8456
    • A stream of content has multiple sub-streams, where each sub-stream comprises a part of the content and is divisible into logical blocks bounded by intrinsic partitions. For each sub-stream, a specification of the logical blocks bounded by the intrinsic partitions is defined and the sub-stream is divided into the logical blocks bounded by the intrinsic partitions. Each divided logical block is encrypted and then divided into one or more portions to produce corresponding pieces of data, and each piece of data is placed into a data packet as a payload thereof. Each data packet is transmitted to a recipient thereof, and the recipient can retrieve the pieces of data from the payloads of the packets, reconstruct the encrypted logical blocks, and manipulate the sub-stream on a per-logical block basis without necessarily decrypting each encrypted logical block.
    • 内容流具有多个子流,其中每个子流包括内容的一部分,并且可以被分为由固有分区界定的逻辑块。 对于每个子流,定义由固有分区界定的逻辑块的规范,并且子流被划分为由固有分区界定的逻辑块。 每个划分的逻辑块被加密,然后被分成一个或多个部分以产生相应的数据段,并且每个数据片段被作为其有效载荷被放置在数据分组中。 每个数据分组被发送到其接收者,并且接收者可以从分组的有效载荷中检索数据片段,重构加密的逻辑块,并且以每个逻辑块为基础来操纵子流,而不必解密每个加密的 逻辑块。
    • 78. 发明授权
    • Secure storage on recordable medium in a content protection system
    • 在内容保护系统中的可记录介质上的安全存储
    • US07664966B2
    • 2010-02-16
    • US10847516
    • 2004-05-17
    • James M. AlkoveHenry Paul Gabryjelski
    • James M. AlkoveHenry Paul Gabryjelski
    • G06F21/00G06F21/24G06F21/02
    • G06F21/10G11B20/00086
    • An application on a computing device to write data to a storage medium associated therewith. The data is to be written to a secure storage area associated with an object on the storage medium, and the secure storage area has a value storage area associated therewith. The application generates a nonce and employs a shared session key (KS) to encrypt the nonce to result in (KS(nonce)). The storage medium receives same and decrypts with (KS) to result in the nonce, locates the value storage area associated with the secure storage area, and stores such nonce in the located value storage area. The application employs the nonce to generate a key (KH), encrypts the data with (KH) to result in (KH(data)), and sends same to the storage medium for storage in the secure storage area. Thus, (KH(data)) is associated with the nonce in the value storage area.
    • 计算设备上的应用程序将数据写入与其相关联的存储介质。 将数据写入与存储介质上的对象相关联的安全存储区域,并且安全存储区域具有与其相关联的值存储区域。 应用程序生成一个随机数,并使用一个共享会话密钥(KS)来加密该随机数,从而导致(KS(随机数))。 存储介质接收到并且用(KS)解密以产生随机数,定位与安全存储区域相关联的值存储区域,并将这种随机数存储在定位值存储区域中。 应用程序使用随机数生成密钥(KH),使用(KH)加密数据以产生(KH(数据)),并将其发送到存储介质以存储在安全存储区域中。 因此,(KH(data))与值存储区域中的随机数相关联。
    • 79. 发明申请
    • CERTIFICATION PROGRAM FOR DEVICES OPERATING WITH AN ENTERTAINMENT ACCESS SYSTEM
    • 使用娱乐访问系统的设备的认证程序
    • US20090328123A1
    • 2009-12-31
    • US12165631
    • 2008-06-30
    • James M. AlkoveChadd B. Knowlton
    • James M. AlkoveChadd B. Knowlton
    • H04N7/173
    • H04N21/443H04N21/2541H04N21/25816H04N21/25833H04N21/25858H04N21/4627H04N21/6334H04N21/8355
    • In order to ensure that an entertainment access system is enabled to unify and simplify a user's enjoyment of content by managing the user's devices, entertainment content and usage rights, it is important to ensure the user devices, and the services they offer, function in accordance with well-established specifications and standards. Importantly, these specifications need to be the same from one device manufacturer to another. This is needed to ensure that the entertainment access system will be able to provide a consistent, reliable and predictable user experience to its users. In some illustrative examples, a certification program is implemented for user devices that receive and render the entertainment content received from the entertainment access system. The certification program establishes specifications to which the devices are to conform regardless of their manufacturer. The program also establishes a testing protocol to determine if the devices are manufactured in accordance with the specifications. The testing protocol is implemented on devices manufactured by the various manufacturers of the devices. Finally, a certificate is issued to those device manufacturers whose devices are demonstrated to be able to successfully complete the testing protocol. The certificate may also authorize the manufacturers to use a certificate mark on their products' packaging, literature and promotional information.
    • 为了确保娱乐访问系统能够通过管理用户的设备,娱乐内容和使用权限来统一和简化用户的内容享受,重要的是确保用户设备及其提供的服务按照 具有完善的规范和标准。 重要的是,这些规格需要从一个设备制造商到另一个设备制造商相同。 这是必要的,以确保娱乐访问系统能够为其用户提供一致,可靠和可预测的用户体验。 在一些说明性示例中,为接收和呈现从娱乐访问系统接收的娱乐内容的用户设备实施认证程序。 无论制造商如何,该认证计划都制定了设备要符合的规范。 该程序还建立了一个测试协议,以确定设备是否符合规范要求。 测试协议在由各种设备制造商制造的设备上实现。 最后,向被证明能够成功完成测试协议的设备制造商颁发证书。 证书还可以授权制造商在其产品的包装,文献和促销信息上使用证书标志。