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    • 2. 发明申请
    • ATTESTED CONTENT PROTECTION
    • 强制内容保护
    • US20090327705A1
    • 2009-12-31
    • US12163426
    • 2008-06-27
    • Kenneth D. RayNathan T. LewisMatthew C. SetzerDavid R. Wooten
    • Kenneth D. RayNathan T. LewisMatthew C. SetzerDavid R. Wooten
    • H04L9/32G06F21/24H04L9/08
    • G06F21/57G06F21/10
    • The present invention extends to methods, systems, and computer program products for protecting content. Embodiments of the invention permit a local machine increased participation in authorizing access to protected content. An operating system attests to a computing environment at a corresponding computer system. If the computing environment is one permitted to access protected content, the operating system is permitted to regulate further (e.g., application) access to protected content in accordance with a procreation policy. As such, authorization decisions are partially distributed, easing the resource burden on a content protection server. Accordingly, embodiments of the invention can facilitate more robust and efficient authorization decisions when access to protected content is requested.
    • 本发明扩展到用于保护内容的方法,系统和计算机程序产品。 本发明的实施例允许本地机器增加对授权对受保护内容的访问的参与。 操作系统在相应的计算机系统上证明计算环境。 如果计算环境是允许访问受保护内容的计算环境,则允许操作系统根据生殖策略进一步(例如,应用)调整对受保护内容的访问。 因此,授权决定部分分配,减轻了内容保护服务器的资源负担。 因此,当请求访问受保护内容时,本发明的实施例可以促进更强大和有效的授权决定。
    • 3. 发明授权
    • Securely launching encrypted operating systems
    • 安全地启动加密的操作系统
    • US07913074B2
    • 2011-03-22
    • US11864418
    • 2007-09-28
    • Kevin M LitwackKenneth D. RayDavid R WootenNathan T. Lewis
    • Kevin M LitwackKenneth D. RayDavid R WootenNathan T. Lewis
    • G06F9/00H04L29/06G06F21/00G06F11/30G06F7/04H04K1/00H04L9/00
    • G06F15/16
    • Tools and techniques for securely launching encrypted operating systems are described herein. The tools may provide computing systems that include operating systems (OSs) that define boot paths for the systems. This boot path may include first and second OS loader components. The first loader may include instructions for retrieving a list of disk sectors from a first store, and for retrieving these specified sectors from an encrypted second store. The first loader may also store the sectors in a third store that is accessible to both the first and the second loader components, and may invoke the second loader to try launching the OS using these sectors. In turn, the second loader may include instructions for retrieving these sectors from the third store, and for unsealing a key for decrypting these sectors. The second loader may then decrypt these sectors, and attempt to launch the OS from these sectors.
    • 本文描述了用于安全启动加密操作系统的工具和技术。 这些工具可以提供包括为系统定义引导路径的操作系统(OS)的计算系统。 该引导路径可以包括第一和第二OS加载器组件。 第一加载器可以包括用于从第一存储检索磁盘扇区列表的指令,并且用于从加密的第二存储中检索这些指定的扇区。 第一加载器还可以将扇区存储在第一和第二加载器组件可访问的第三个存储区中,并且可以调用第二加载器来尝试使用这些扇区启动操作系统。 反过来,第二装载器可以包括用于从第三商店检索这些扇区的指令,以及用于解密用于对这些扇区进行解密的密钥。 然后,第二加载器可以解密这些扇区,并尝试从这些扇区启动OS。
    • 4. 发明申请
    • Securely Launching Encrypted Operating Systems
    • 安全启动加密操作系统
    • US20090089568A1
    • 2009-04-02
    • US11864418
    • 2007-09-28
    • Kevin M. LitwackKenneth D. RayDavid R. WootenNathan T. Lewis
    • Kevin M. LitwackKenneth D. RayDavid R. WootenNathan T. Lewis
    • G06F15/177
    • G06F15/16
    • Tools and techniques for securely launching encrypted operating systems are described herein. The tools may provide computing systems that include operating systems (OSs) that define boot paths for the systems. This boot path may include first and second OS loader components. The first loader may include instructions for retrieving a list of disk sectors from a first store, and for retrieving these specified sectors from an encrypted second store. The first loader may also store the sectors in a third store that is accessible to both the first and the second loader components, and may invoke the second loader to try launching the OS using these sectors. In turn, the second loader may include instructions for retrieving these sectors from the third store, and for unsealing a key for decrypting these sectors. The second loader may then decrypt these sectors, and attempt to launch the OS from these sectors.
    • 本文描述了用于安全启动加密操作系统的工具和技术。 这些工具可以提供包括为系统定义引导路径的操作系统(OS)的计算系统。 该引导路径可以包括第一和第二OS加载器组件。 第一加载器可以包括用于从第一存储检索磁盘扇区列表的指令,并且用于从加密的第二存储中检索这些指定的扇区。 第一加载器还可以将扇区存储在第一和第二加载器组件可访问的第三个存储区中,并且可以调用第二加载器来尝试使用这些扇区启动操作系统。 反过来,第二装载器可以包括用于从第三商店检索这些扇区的指令,以及用于解密用于对这些扇区进行解密的密钥。 然后,第二加载器可以解密这些扇区,并尝试从这些扇区启动OS。