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    Method and apparatus for managing digital content
    1.
    发明授权
    Method and apparatus for managing digital content 失效
    用于管理数字内容的方法和装置

    公开(公告)号：US08474055B2

    公开(公告)日：2013-06-25

    申请号：US12014486

    申请日：2008-01-15

    申请人： Ju-hee Seo ,  Myung-sun Kim ,  Hak-soo Ju ,  Ji-young Moon ,  Mi-hwa Park

    发明人： Ju-hee Seo ,  Myung-sun Kim ,  Hak-soo Ju ,  Ji-young Moon ,  Mi-hwa Park

    IPC分类号： H04L29/06

    CPC分类号： G06F21/10 ,  G06F2221/0742 ,  G06F2221/2137

    摘要： A method and apparatus for managing digital content are provided. The apparatus for managing digital content generated by applying digital rights management (DRM) includes: a content execution unit executing digital content; and a control unit confirming whether or not digital content is in a first period in which the digital content can be normally executed, and controlling the content execution unit so that, if the digital content is in the first period, the digital content can be executed normally, and if the digital content is in a second period which is not in the first period, the digital content can be executed in a manner which can be distinguished from that of execution in the first period. According to the apparatus and method, execution of digital content, which is close to expiration, can be controlled, thereby managing the expiration of the digital content for a user.

    摘要翻译： 提供了一种用于管理数字内容的方法和装置。 用于管理通过应用数字版权管理（DRM）生成的数字内容的装置包括：执行数字内容的内容执行单元; 以及控制单元，确认数字内容是否处于能够正常执行数字内容的第一时段，并且控制内容执行单元，使得如果数字内容处于第一时段，则可以执行数字内容 正常情况下，如果数字内容处于不在第一周期的第二周期，则可以以与第一周期中执行的数字内容不同的方式执行数字内容。 根据该装置和方法，可以控制接近到期的数字内容的执行，从而管理用户的数字内容的到期。

    METHOD OF TRANSMITTING CONTENTS BETWEEN DEVICES AND SYSTEM THEREOF
    2.
    发明申请
    METHOD OF TRANSMITTING CONTENTS BETWEEN DEVICES AND SYSTEM THEREOF 审中-公开
    传输设备与系统之间的内容的方法

    公开(公告)号：US20080229094A1

    公开(公告)日：2008-09-18

    申请号：US11875044

    申请日：2007-10-19

    申请人： Ji-young Moon ,  Myung-sun Kim ,  Hak-Soo Ju

    发明人： Ji-young Moon ,  Myung-sun Kim ,  Hak-Soo Ju

    IPC分类号： H04L9/00

    CPC分类号： H04W12/08 ,  H04L63/0435 ,  H04L63/10 ,  H04L2463/101 ,  H04W12/001

    摘要： A method of transmitting content between devices and a system therefor are provided. The method of transmitting encrypted content in a state in which the encrypted content and license information is stored and in which an external device is connected, includes: transmitting the license information corresponding to the encrypted content to the external device; transmitting the encrypted content to the external device, when receiving a request for transmitting the encrypted content from the external device; and updating the license information. Accordingly, content can be rapidly and stably transmitted between the devices. Also, it is possible to improve the accuracy and the security in the procedure of updating the license information.

    摘要翻译： 提供了一种在设备之间传送内容的方法及其系统。 在加密内容和许可信息被存储并且外部设备连接的状态下发送加密内容的方法包括：将与加密内容对应的许可信息发送到外部设备; 当从外部设备接收到发送加密内容的请求时，将加密的内容发送到外部设备; 并更新许可证信息。 因此，可以在设备之间快速且稳定地传送内容。 此外，可以提高更新许可信息的过程中的准确性和安全性。

    PORTABLE MEMORY APPARATUS HAVING A CONTENT PROTECTION FUNCTION AND METHOD OF MANUFACTURING THE SAME
    3.
    发明申请
    PORTABLE MEMORY APPARATUS HAVING A CONTENT PROTECTION FUNCTION AND METHOD OF MANUFACTURING THE SAME 审中-公开
    具有内容保护功能的便携式存储装置及其制造方法

    公开(公告)号：US20080229015A1

    公开(公告)日：2008-09-18

    申请号：US11926233

    申请日：2007-10-29

    申请人： Myung-sun Kim ,  Hak-soo Ju ,  Ji-young Moon

    发明人： Myung-sun Kim ,  Hak-soo Ju ,  Ji-young Moon

    IPC分类号： G06F13/00 ,  H04L9/32

    CPC分类号： G11C16/22 ,  G06F12/1425 ,  G06F12/1458

    摘要： A portable memory apparatus having a content protection function is provided. The portable memory apparatus includes a memory and a memory control unit. The memory includes a read-only memory area which stores content and is set to so that only read operations are allowed, a writable memory area which is set so that read and write operations are allowed, and a special memory area which stores information needed to operate the portable memory apparatus and is set so that only authenticated programs are allowed to read from and/or write to the special memory area. The memory control unit controls the read and write operations on each of the areas.

    摘要翻译： 提供具有内容保护功能的便携式存储装置。 便携式存储装置包括存储器和存储器控制单元。 存储器包括存储内容并被设置为仅允许读取操作的只读存储器区域，被设置为允许读取和写入操作的可写入存储区域以及存储所需的信息的专用存储器区域 操作便携式存储装置，并且被设置为使得仅允许经认证的程序从特殊存储器区域读取和/或向其写入。 存储器控制单元控制每个区域的读取和写入操作。

    MUTUAL AUTHENTICATION METHOD BETWEEN DEVICES USING MEDIATION MODULE AND SYSTEM THEREFOR
    4.
    发明申请
    MUTUAL AUTHENTICATION METHOD BETWEEN DEVICES USING MEDIATION MODULE AND SYSTEM THEREFOR 审中-公开
    使用中介模块和其系统之间的设备之间的相互认证方法

    公开(公告)号：US20080229104A1

    公开(公告)日：2008-09-18

    申请号：US11865821

    申请日：2007-10-02

    申请人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    发明人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    IPC分类号： H04L9/00

    CPC分类号： H04L9/3268 ,  H04L9/3247 ,  H04L9/3273 ,  H04L2209/603 ,  H04L2209/80

    摘要： A mutual authentication method using a mediation module and a system therefor are provided. The method includes: storing a first partial private key obtained by dividing a first private key of a device; storing a second partial private key obtained by dividing a second private key of a host device; receiving unique identifiers (IDs) and random numbers for the device and the host device from the device and determining whether the unique IDs are valid; and generating a first signature value by using the first partial private key and a second signature value by using the second partial private key if the unique IDs are valid, and transmitting the generated first and second signature values to the device

    摘要翻译： 提供了一种使用中介模块及其系统的相互认证方法。 该方法包括：存储通过划分设备的第一私钥获得的第一部分私钥; 存储通过划分主机设备的第二私钥获得的第二部分私钥; 从设备接收设备和主机设备的唯一标识符（ID）和随机数，并确定唯一ID是否有效; 以及如果所述唯一ID有效，则通过使用所述第二部分私钥通过使用所述第一部分专用密钥和第二签名值来生成第一签名值，以及将生成的第一和第二签名值发送到所述设备

    APPARATUS AND METHOD FOR IMPORTING CONTENT INCLUDING PLURAL PIECES OF USAGE CONSTRAINT INFORMATION
    5.
    发明申请
    APPARATUS AND METHOD FOR IMPORTING CONTENT INCLUDING PLURAL PIECES OF USAGE CONSTRAINT INFORMATION 审中-公开
    用于输入内容的装置和方法，包括使用约束信息的多个部分

    公开(公告)号：US20090012973A1

    公开(公告)日：2009-01-08

    申请号：US12049620

    申请日：2008-03-17

    申请人： Ji-young Moon ,  Myung-sun Kim ,  Hak-soo Ju

    发明人： Ji-young Moon ,  Myung-sun Kim ,  Hak-soo Ju

    IPC分类号： G06F17/30

    CPC分类号： G06F21/10

    摘要： Provided are a method and apparatus for generating separate rule data using a database management system (DBMS) based language in order to efficiently manage usage rules of content. The method of providing usage rule data of content included in a mobile storage medium connected to a content reproduction device, the method includes: generating first rule data that is a set of rules used to manage the usage rule data based on a data structure of a database management system (DBMS); and generating second rule data that is a set of rules used to access the usage rule data using the first rule data.

    摘要翻译： 提供了一种用于使用基于数据库管理系统（DBMS）的语言来生成单独的规则数据以便有效地管理内容的使用规则的方法和装置。 提供连接到内容再现装置的移动存储介质中包含的内容的使用规则数据的方法，该方法包括：生成作为用于管理使用规则数据的一组规则的第一规则数据， 数据库管理系统（DBMS）; 以及生成作为用于使用所述第一规则数据访问所述使用规则数据的一组规则的第二规则数据。

    METHOD AND SYSTEM FOR MUTUAL AUTHENTICATION BETWEEN MOBILE AND HOST DEVICES
    7.
    发明申请
    METHOD AND SYSTEM FOR MUTUAL AUTHENTICATION BETWEEN MOBILE AND HOST DEVICES 审中-公开
    移动和主机设备之间的相互认证的方法和系统

    公开(公告)号：US20080219451A1

    公开(公告)日：2008-09-11

    申请号：US11957517

    申请日：2007-12-17

    申请人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    发明人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    IPC分类号： H04L9/14 ,  H04L9/08 ,  H04L9/32 ,  H04L9/30

    CPC分类号： G06F21/10 ,  G06F21/445

    摘要： Provided are a method and a system for mutual authentication between mobile and host devices. The mobile device stores a first secret key and is connected to the host device. The method includes generating a second secret key using the first secret key and first data that is received from the host device and is encrypted using a predetermined method. The method further includes transmitting second data that is encrypted using a predetermined method, to the host device to induce generation of a media key; performing an operation on the second secret key and transmitting a generated operation value to the host device; and performing mutual authentication between the mobile device and the host device.

    摘要翻译： 提供了一种用于移动和主机设备之间的相互认证的方法和系统。 移动设备存储第一秘密密钥并连接到主机设备。 该方法包括使用第一秘密密钥和从主机设备接收的第一数据并使用预定方法进行加密来生成第二密钥。 该方法还包括将使用预定方法加密的第二数据发送到主机设备以引起媒体密钥的产生; 对所述第二秘密密钥执行操作，并将生成的操作值发送到所述主机设备; 以及在移动设备和主机设备之间执行相互认证。

    Method and devices for reproducing encrypted content and approving reproduction
    8.
    发明授权
    Method and devices for reproducing encrypted content and approving reproduction 有权
    用于再现加密内容并批准再现的方法和装置

    公开(公告)号：US08321660B2

    公开(公告)日：2012-11-27

    申请号：US12049609

    申请日：2008-03-17

    申请人： Hak-soo Ju ,  Myung-sun Kim ,  Ji-young Moon

    发明人： Hak-soo Ju ,  Myung-sun Kim ,  Ji-young Moon

    IPC分类号： H04L29/06 ,  H04L9/00 ,  G06F21/00

    CPC分类号： G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00246 ,  H04L9/0891 ,  H04L2209/603 ,  H04N5/913 ,  H04N2005/91342 ,  H04N2005/91364

    摘要： A reproduction method capable of immediately revoking a leaked device key by dividing the device key into a first partial key and a second partial key is provided. The reproduction method includes the operations of receiving encrypted content to be reproduced, requesting a token for decrypting the received content from an external device containing a first partial key of a device via a network, receiving the requested token from the external device, and decrypting the received token by using a second partial key contained in the device, thereby preventing content encrypted and distributed before revocation of an illegally copied device from being reproduced, and minimizing damage due to key leakage.

    摘要翻译： 提供了能够通过将设备密钥分成第一部分密钥和第二部分密钥来立即撤销泄露的设备密钥的再现方法。 再现方法包括接收要再现的加密内容的操作，经由网络从包含设备的第一部分密钥的外部设备请求接收到的内容的令牌，从外部设备接收所请求的令牌，并解密 通过使用包含在设备中的第二部分密钥来接收令牌，由此防止在非法复制的设备的撤销之前加密和分发的内容被再现，并且最小化由于密钥泄漏引起的损坏。

    METHOD AND DEVICES FOR REPRODUCING ENCRYPTED CONTENT AND APPROVING REPRODUCTION
    9.
    发明申请
    METHOD AND DEVICES FOR REPRODUCING ENCRYPTED CONTENT AND APPROVING REPRODUCTION 有权
    用于复制加密内容和批准复制的方法和设备

    公开(公告)号：US20090013172A1

    公开(公告)日：2009-01-08

    申请号：US12049609

    申请日：2008-03-17

    申请人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    发明人： Hak-soo JU ,  Myung-sun Kim ,  Ji-young Moon

    IPC分类号： H04L9/00

    CPC分类号： G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00246 ,  H04L9/0891 ,  H04L2209/603 ,  H04N5/913 ,  H04N2005/91342 ,  H04N2005/91364

    摘要： A reproduction method capable of immediately revoking a leaked device key by dividing the device key into a first partial key and a second partial key is provided. The reproduction method includes the operations of receiving encrypted content to be reproduced, requesting a token for decrypting the received content from an external device containing a first partial key of a device via a network, receiving the requested token from the external device, and decrypting the received token by using a second partial key contained in the device, thereby preventing content encrypted and distributed before revocation of an illegally copied device from being reproduced, and minimizing damage due to key leakage.

    摘要翻译： 提供了能够通过将设备密钥分成第一部分密钥和第二部分密钥来立即撤销泄露的设备密钥的再现方法。 再现方法包括接收要再现的加密内容的操作，经由网络从包含设备的第一部分密钥的外部设备请求接收到的内容的令牌，从外部设备接收所请求的令牌，并解密 通过使用包含在设备中的第二部分密钥来接收令牌，由此防止在非法复制的设备的撤销之前加密和分发的内容被再现，并且最小化由于密钥泄漏引起的损坏。

    Method of decoding/encoding content file
    10.
    发明申请
    Method of decoding/encoding content file 审中-公开
    内容文件解码/编码方法

    公开(公告)号：US20080118060A1

    公开(公告)日：2008-05-22

    申请号：US11654589

    申请日：2007-01-18

    申请人： Myung-Sun Kim ,  Hak-soo Ju ,  Ji-young Moon ,  Ju-hee Seo ,  Mi-hwa Park

    发明人： Myung-Sun Kim ,  Hak-soo Ju ,  Ji-young Moon ,  Ju-hee Seo ,  Mi-hwa Park

    IPC分类号： H04L9/14 ,  H04L9/28

    CPC分类号： H04L9/0836 ,  H04L2209/60

    摘要： A method of decoding/encoding a content file is provided. The method of decoding a content file includes dividing an encoded content file into a plurality of data blocks, grouping the plurality of data blocks into a plurality of groups, generating a group content key for each of the plurality of groups, generating a plurality of block keys for the data blocks in each of the plurality of groups from the group content key generated for each of the plurality of groups, and decoding the plurality of data blocks using the plurality of block keys.

    摘要翻译： 提供了一种对内容文件进行解码/编码的方法。 解码内容文件的方法包括将编码的内容文件划分为多个数据块，将多个数据块分组成多个组，为多个组中的每个组生成组内容密钥，生成多个块 用于从为多个组中的每个组生成的组内容密钥中的每个组中的数据块的密钥，以及使用多个块密钥对多个数据块进行解码。