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    Rendering digital content in content protection system according to a plurality of chained digital licenses
    1.
    发明专利
    Rendering digital content in content protection system according to a plurality of chained digital licenses 有权
    内容保护系统中的数字内容呈现多项连续数字许可证

    公开(公告)号：JP2005322227A

    公开(公告)日：2005-11-17

    申请号：JP2005124814

    申请日：2005-04-22

    Applicant: Microsoft Corp ,  マイクロソフト コーポレーション

    Inventor： EVANS BRIAN P ,  STROM CLIFFORD P ,  PARKS MICHAEL JAY

    IPC: G06F21/24 ,  G06F1/00 ,  G06F12/14 ,  G06F21/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/32 ,  H04L29/06

    CPC classification number: H04L63/10 ,  G06F21/10 ,  H04L63/045 ,  H04L2463/101

    Abstract: PROBLEM TO BE SOLVED: To render a encrypted digital content in accordance with a license chain. SOLUTION: A request to render the encrypted content is received and a chain of licenses corresponding to the content is located. The chain includes a leaf license linked to the content at one end of the chain, a root license at the other end of the chain and intermediate licenses therebetween. The leaf license and the intermediate licenses in the chain are each bound to the adjoining license in the chain toward the root license and the root license is bound to an owner of a private key (PR-U). For each license in the chain, the license is verified and it is confirmed that the license allows the content to be rendered. A decryption key is obtained from the leaf license based on the application of the (PR-U) to the root license, the obtained key is applied to the encrypted content and the decrypted content is rendered. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：根据许可证链提供加密的数字内容。 解决方案：收到呈现加密内容的请求，并且找到与该内容相对应的许可证链。 该链包括与链的一端链接的内容的叶授权，链的另一端的根许可证以及它们之间的中间许可。 链中的叶许可证和中间许可证都被绑定到链中的相邻许可证，以及根许可证，根许可证绑定到私钥（PR-U）的所有者。 对于链中的每个许可证，许可证被验证，并且确认许可证允许呈现内容。 根据（PR-U）到根许可证的应用，从叶许可获得解密密钥，将获得的密钥应用于加密的内容，并且解密的内容被呈现。 版权所有（C）2006，JPO＆NCIPI

    Prevention of free distribution of contents on medium
    2.
    发明专利
    Prevention of free distribution of contents on medium 有权
    防止在媒体上免费分发内容

    公开(公告)号：JP2004046859A

    公开(公告)日：2004-02-12

    申请号：JP2003185955

    申请日：2003-06-27

    Applicant: Microsoft Corp ,  マイクロソフト コーポレイションMicrosoft Corporation

    Inventor： STROM CLIFFORD P ,  SAHASRABUDHE SANDEEP ,  PARKS M JAY ,  PADDLEFORD JOHN

    IPC: G06F12/14 ,  G06F21/00 ,  H04L9/08

    CPC classification number: G11B20/00086 ,  G06F21/10 ,  G11B20/0021 ,  G11B20/0055 ,  G11B20/00659 ,  G11B20/00695 ,  G11B20/00847

    Abstract: PROBLEM TO BE SOLVED: To prevent free distribution of contents for protecting a copy of a medium such as a CD while allowing copying of the contents to a computing device and the like. SOLUTION: Digital contents are encrypted according to contents key CK to form CK contents. The CK contents, a license generator, a starting file, and license generating information are arranged on a digital storage medium. The license generator generates a digital license matching the arranged contents, and the generated license includes the contents key CK. The starting file is read and executed when the medium is mounted to the computing device, and when the starting file is executed, the license generator is executed. The license generating information includes the contents key CK, and an optional condition, status, a rule and/or requirement for installing the license. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：为了防止用于保护诸如CD的介质的副本的内容的免费分发，同时允许将内容复制到计算设备等。 解决方案：根据内容密钥CK对数字内容进行加密，形成CK内容。 CK内容，许可证生成器，起始文件和许可证生成信息被布置在数字存储介质上。 许可证生成器生成与排列的内容匹配的数字许可，并且所生成的许可证包括内容密钥CK。 当介质安装到计算设备时，起始文件被读取并执行，并且当执行起始文件时，执行许可证生成器。 许可证生成信息包括内容密钥CK，以及用于安装许可证的可选条件，状态，规则和/或要求。 版权所有（C）2004，JPO

    Encryption of content and data protection on portable medium
    3.
    发明专利
    Encryption of content and data protection on portable medium 有权
    加强便携式媒体的内容和数据保护

    公开(公告)号：JP2005129069A

    公开(公告)日：2005-05-19

    申请号：JP2004310060

    申请日：2004-10-25

    Applicant: Microsoft Corp ,  マイクロソフト コーポレーション

    Inventor： STROM CLIFFORD P ,  MERCER IAN C ,  ALKOVE JAMES M ,  MCKUNE JEFFREY R ,  LACHAPELLE KEVIN L ,  PARKS MICHAEL J

    IPC: G06F21/24 ,  G06F21/00 ,  G06Q50/00 ,  H04L9/08 ,  H04L9/32 ,  G06F12/14 ,  G06F17/60 ,  G06F19/00

    CPC classification number: G06F21/10 ,  G06F2221/0797 ,  H04L9/0822 ,  H04L9/0825 ,  H04L2209/605

    Abstract: PROBLEM TO BE SOLVED: To provide a security-protected, simple, and low cost copy protecting system having low throughput. SOLUTION: A source generates a medium key(KM) and a media secret table having a plurality of entries, each including the (KM) encrypted by the public key (PU-PD) of a plurality of devices, and obtains the medium ID from a medium, and generates a content key (KD) for a piece of content, and encrypts the content into (KD (contents)) by using the (KD), and encrypts the (KD) into (KM (KD)) by using the (KM), and generates a package including the (KD (contents)), the (KM (KD)), the media ID and a signature verifiable by using the (KM) based on at least the medium ID, and copies the generated package and the media secret table to the medium. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供具有低吞吐量的安全保护的，简单的和低成本的复制保护系统。 解决方案：源产生具有多个条目的介质密钥（KM）和媒体密钥表，每个条目包括通过多个设备的公钥（PU-PD）加密的（KM），并获得 并且生成用于一条内容的内容密钥（KD），并且通过使用（KD）将内容加密成（KD（内容）），并将（KD）加密成（KM（KD） ），并且生成包括（KD（内容）），（KM（KD）），媒体ID和可以基于至少基于媒体ID使用（KM）可验证的签名的包， 并将生成的包和媒体秘密表复制到介质。 版权所有（C）2005，JPO＆NCIPI

    Metering accessing of content or the like in content protection system or the like
    5.
    发明专利
    Metering accessing of content or the like in content protection system or the like 有权
    内容保护系统中的内容访问或类似的访问

    公开(公告)号：JP2005317009A

    公开(公告)日：2005-11-10

    申请号：JP2005126384

    申请日：2005-04-25

    Applicant: Microsoft Corp ,  マイクロソフト コーポレーション

    Inventor： CUTTER BENJAMIN BROOKS ,  EVANS BRIAN P ,  STROM CLIFFORD P ,  PARKS MICHAEL JAY

    IPC: G06F21/24 ,  G06F21/00 ,  G10K15/02 ,  G06F12/14

    CPC classification number: G06F21/10 ,  G06F2221/2135 ,  G06Q50/06 ,  Y10S707/99945 ,  Y10S707/99948

    Abstract: PROBLEM TO BE SOLVED: To provide architecture or a method by which metering of data is performed and metered data is reported to a metering service. SOLUTION: The metered data is accumulated, is indexed within a metering database of a client to a metering ID (MID) and a content-associated ID (KID), the client selects a particular MID and metered data in the metering database having the selected MID, constructs a challenge based on the selected metered data, sends the same to the metering service. The metering service obtains the metered data from the challenge, stores the same, and constructs a response. The client receives the response including a list of KIDs of the selected metered data in the challenge and processes the list of KIDs by, for each KID in the list, deleting the metered data from the metering database having the selected MID and the KID. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供结构或方法，通过该方法对数据进行计量并将计量数据报告给计量服务。

    解决方案：计量数据累积，在客户端的计量数据库中被索引到计量ID（MID）和内容相关ID（KID），客户端在计量数据库中选择特定的MID和计量数据 具有所选择的MID，基于所选择的计量数据构建挑战，将其发送到计费服务。 计量服务从挑战中获取计量数据，存储相同，并构建响应。 客户机接收到包括挑战中所选择的计量数据的KID列表的响应，并通过列表中的每个KID处理KID列表，从具有所选MID和KID的计量数据库中删除计量数据。 版权所有（C）2006，JPO＆NCIPI

    RIGHTS MANAGEMENT SYSTEM FOR STREAMED MULTIMEDIA CONTENT
    8.
    发明申请
    RIGHTS MANAGEMENT SYSTEM FOR STREAMED MULTIMEDIA CONTENT 审中-公开
    流域多媒体内容权利管理系统

    公开(公告)号：WO2006115620A3

    公开(公告)日：2008-01-10

    申请号：PCT/US2006009906

    申请日：2006-03-16

    Applicant: MICROSOFT CORP

    Inventor： EVANS BRIAN P ,  STROM CLIFFORD P ,  ROSENSTEIN DANIEL ,  PAKA ANAND D ,  FANG NICHOLAS J ,  OLIVEIRA EDUARDO

    IPC: H04L9/00

    CPC classification number: G06F21/10 ,  H04N21/26613 ,  H04N21/43615 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/63345 ,  H04N21/8355

    Abstract: A sequence of content keys are shared between a receiver of pieces of digital content and a computing device upon which the content is to be rendered. The receiver encrypts each piece of content according to a corresponding content key in the sequence and forwards the encrypted content to the computing device and the computing device decrypts the encrypted content according to the corresponding content key. The receiver initially transmits to the computing device an initialization digital license with an initial content key (CK0) therein. The receiver and the computing device each derive a new content key (CKx) in the sequence from the initial content key (CK(0)) in the sequence on an as-needed basis and in a coordinated fashion. The initialization license is required only once for the sequence of content keys, and the receiver need not explicitly communicate (CKx) to the computing device for each piece of content.

    Abstract translation: 一系列内容密钥在数字内容片段的接收机和要在其上呈现内容的计算设备之间共享。 接收机根据序列中的对应的内容密钥加密每条内容，并将加密的内容转发到计算设备，并且计算设备根据相应的内容密钥解密加密的内容。 接收机最初向计算设备发送其中具有初始内容密钥（CK0）的初始化数字许可证。 接收机和计算装置各自根据需要的基础和以协调的方式从序列中的初始内容密钥（CK（0））的序列中导出新的内容密钥（CKx）。 对于内容密钥的序列，初始化许可证仅需要一次，并且接收器不需要为每个内容显式地通信（CKx）到计算设备。

    RIGHTS MANAGEMENT SYSTEM FOR STREAMED MULTIMEDIA CONTENT
    10.
    发明申请
    RIGHTS MANAGEMENT SYSTEM FOR STREAMED MULTIMEDIA CONTENT 审中-公开
    流域多媒体内容权利管理系统

    公开(公告)号：WO2006115608A3

    公开(公告)日：2009-04-23

    申请号：PCT/US2006009650

    申请日：2006-03-16

    Applicant: MICROSOFT CORP

    Inventor： EVANS BRIAN P ,  STROM CLIFFORD P ,  ROSENSTEIN DANIEL ,  PAKA ANAND D

    IPC: G06Q99/00

    CPC classification number: H04N21/835 ,  H04N7/165 ,  H04N21/2541 ,  H04N21/4627 ,  H04N21/8355

    Abstract: A receiver tunes content and initially does not locate information relating to requirements for a corresponding license, and therefore constructs a default message including default requirements and sends such constructed default message with such default requirements to a computing device that is to render the content. The computing device upon receiving the sent default message with the default requirements constructs a default version of a license based on such received default requirements, stores such constructed default version of the license in a license store of such computing device, and thereafter renders the content only in accordance with the default version of the license.

    Abstract translation: 接收器调谐内容，并且最初不定位与相应许可证的要求相关的信息，并且因此构建包括默认需求的默认消息，并将具有这样的默认需求的这种构造的默认消息发送到要呈现内容的计算设备。 计算设备在接收到具有默认请求的发送的默认消息时，将根据此类接收到的默认要求构建许可证的默认版本，将此类构建的许可证的默认版本存储在此类计算设备的许可证存储库中，然后仅呈现内容 按照默认版本的许可证。

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