Content encryption schema for integrating digital rights management with encrypted multicast
    102.
    发明授权
    Content encryption schema for integrating digital rights management with encrypted multicast 有权
    用于将数字版权管理与加密多播集成的内容加密模式

    公开(公告)号:US07978848B2

    公开(公告)日:2011-07-12

    申请号:US11621445

    申请日:2007-01-09

    申请人: Bin Zhu Min Feng

    发明人: Bin Zhu Min Feng

    IPC分类号: H04L9/00

    摘要: Systems and methods provide a content encryption schema for integrating digital rights management (DRM) in a multicast/broadcast encryption system. In one implementation, an exemplary integrated key schema provides content encryption keys that can be employed by a multicast or broadcast process, while providing DRM protection of recorded multicast content via a single DRM decryption secret. The integrated key schema provides high security and allows encrypted multicast content to be saved directly to local files. A license server can efficiently manage and generate DRM keys to be delivered to clients because only a single key needs to be delivered per license to a client. The integrated key schema can be applied together with conventional broadcast or multicast encryption techniques.

    摘要翻译: 系统和方法提供了一种用于在多播/广播加密系统中集成数字版权管理(DRM)的内容加密模式。 在一个实现中,示例性集成密钥模式提供可以由多播或广播过程采用的内容加密密钥,同时通过单个DRM解密秘密提供对所记录的多播内容的DRM保护。 集成密钥架构提供高安全性,并允许将加密的多播内容直接保存到本地文件。 许可证服务器可以有效地管理和生成要发送到客户端的DRM密钥,因为每个许可证只需要将一个密钥交付给客户端。 集成密钥模式可以与传统的广播或多播加密技术一起应用。

    Securing Communications for Web Mashups
    107.
    发明申请
    Securing Communications for Web Mashups 审中-公开
    保护Web Mashup的通信

    公开(公告)号:US20100180330A1

    公开(公告)日:2010-07-15

    申请号:US12351198

    申请日:2009-01-09

    申请人: Bin Zhu Min Feng Rui Guo

    发明人: Bin Zhu Min Feng Rui Guo

    IPC分类号: H04L9/32 G06F21/00

    摘要: Techniques described herein provide security for communications in web mashups. Some implementations secure web mashups by specifying and monitoring a lifecycle of one or more web applications that communicate with each other through implementation of lifecycle declarations. Furthermore, some implementations herein may use access tickets to provide access control between web applications in a web mashup.

    摘要翻译: 这里描述的技术提供了网络混搭中的通信的安全性。 一些实现通过指定和监视通过实现生命周期声明来相互通信的一个或多个Web应用程序的生命周期来保护Web混搭。 此外,本文中的一些实现可以使用访问机票来提供web混搭中的web应用之间的访问控制。

    Secure key management for scalable codestreams
    108.
    发明授权
    Secure key management for scalable codestreams 有权
    可扩展的码流的安全密钥管理

    公开(公告)号:US07644445B2

    公开(公告)日:2010-01-05

    申请号:US11178943

    申请日:2005-07-11

    IPC分类号: H04L9/18 H04L9/34

    摘要: Key management is performed to generate a single key allowing of the decoding of all authorized levels of a plurality of access types within a scalable codestream. An access node set is derived from sets representing access types having hierarchies representable by fully ordered sets, such as resolution and layer levels, and hierarchies representable by partially ordered sets, such as tile and precinct levels. The access node set derived is a partially ordered set representing the combinations of levels of the access types included within the codestream. A hierarchical key management system is applied to the access node set to assign a key to each of the access nodes, generate content encryption keys, and encrypt the codestream. A client receiving the codestream, access node set, and other public information uses the key to derive additional keys to decrypt the codestream.

    摘要翻译: 执行密钥管理以生成允许在可缩放码流内解码多个接入类型的所有授权级别的单个密钥。 访问节点集是从表示具有可由完全有序集合表示的层次的访问类型的集合导出的,例如分辨率和层级,以及可由部分有序集合表示的层次,例如平铺和区域级别。 导出的访问节点集是表示码流内包括的访问类型的级别的组合的部分有序集合。 分层密钥管理系统被应用于接入节点集合,以将密钥分配给每个接入节点,生成内容加密密钥和加密码流。 接收码流,接入节点集和其他公共信息的客户端使用密钥来导出附加密钥来解密码流。

    System and Method for Separated Image Compression
    109.
    发明申请
    System and Method for Separated Image Compression 审中-公开
    分离图像压缩的系统和方法

    公开(公告)号:US20090262126A1

    公开(公告)日:2009-10-22

    申请号:US12425255

    申请日:2009-04-16

    申请人: Xuan Zhang Bin Zhu

    发明人: Xuan Zhang Bin Zhu

    IPC分类号: G09G5/00 G09G5/02

    摘要: A method and system for separated image compression are disclosed. According to one embodiment a computer-implemented method comprises initiating transfer of a screen image, preparing the screen image for separation, separating the screen image into image blocks, compressing the image blocks into image packets, and transmitting the image packets.

    摘要翻译: 公开了一种用于分离图像压缩的方法和系统。 根据一个实施例,计算机实现的方法包括启动屏幕图像的传送,准备用于分离的屏幕图像,将屏幕图像分离成图像块,将图像块压缩成图像分组,以及发送图像分组。

    Digital rights management system
    110.
    发明授权
    Digital rights management system 失效
    数字版权管理系统

    公开(公告)号:US07594275B2

    公开(公告)日:2009-09-22

    申请号:US10685234

    申请日:2003-10-14

    IPC分类号: G06F7/04 H04N7/16

    摘要: A public licensing infrastructure (PLI) for a digital rights management (DRM) system is described. In an implementation, a method includes generating a formal license for content. The formal license includes a decryption key for decrypting the content and access rules for accessing the content. A plurality of license authorities is configured to provide a plurality of partial licenses. The plurality of partial licenses is combinable to form the formal license. Each license authority provides a respective partial license.

    摘要翻译: 描述了数字版权管理(DRM)系统的公共许可基础设施(PLI)。 在实现中,一种方法包括生成内容的正式许可证。 正式许可证包括用于解密内容的解密密钥和用于访问内容的访问规则。 多个许可机构被配置为提供多个部分许可证。 多个部分许可证可组合形成正式许可证。 每个许可证机构都提供相应的部分许可证。