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    Method and apparatus for playing back content based on digital rights management between portable storage and device, and portable storage for the same
    5.
    发明授权
    Method and apparatus for playing back content based on digital rights management between portable storage and device, and portable storage for the same 有权
    基于便携式存储和设备之间的数字版权管理的播放内容的方法和装置，以及用于其的便携式存储

    公开(公告)号：US07779479B2

    公开(公告)日：2010-08-17

    申请号：US11141328

    申请日：2005-06-01

    申请人： Byung-rae Lee ,  Yun-sang Oh ,  Tae-sung Kim ,  Kyung-im Jung ,  Shin-han Kim

    发明人： Byung-rae Lee ,  Yun-sang Oh ,  Tae-sung Kim ,  Kyung-im Jung ,  Shin-han Kim

    IPC分类号： G06F7/04

    CPC分类号： G06F21/10 ,  G06F2221/0777 ,  G06F2221/0793 ,  G11B20/00086

    摘要： A method of playing back content based on digital rights management (DRM) between a portable storage and a device and a portable storage for the same are provided. The method of playing back content using a portable storage includes requesting the portable storage to transmit a right to play back content protected through digital rights management (DRM), receiving the right to play back the content protected through DRM from the portable storage, and informing the portable storage of completion of the playback when a playback of the content protected through DRM using the right is completed.

    摘要翻译： 提供了一种基于便携式存储器和设备之间的数字版权管理（DRM）和用于其的便携式存储器来回放内容的方法。 使用便携式存储器回放内容的方法包括请求便携式存储器发送通过数字版权管理（DRM）保护的内容的权利，接收通过DRM保护的内容从便携式存储器播放的权利，以及通知 当通过DRM保护的内容的播放完成时，完成播放的便携式存储完成。

    Method and apparatus for acquiring and removing information regarding digital rights objects
    7.
    发明申请
    Method and apparatus for acquiring and removing information regarding digital rights objects 审中-公开
    用于获取和删除关于数字版权对象的信息的方法和装置

    公开(公告)号：US20050216419A1

    公开(公告)日：2005-09-29

    申请号：US11091825

    申请日：2005-03-29

    申请人： Byung-Rae Lee ,  Tae-sung Kim ,  Kyung-im Jung ,  Yun-sang Oh ,  Shin-han Kim

    发明人： Byung-Rae Lee ,  Tae-sung Kim ,  Kyung-im Jung ,  Yun-sang Oh ,  Shin-han Kim

    IPC分类号： G06F17/00 ,  G06F21/00 ,  H04L9/08 ,  G06F17/60

    CPC分类号： G06F21/606 ,  G06F21/10 ,  G06F2221/2135 ,  G06F2221/2137 ,  G06F2221/2143 ,  G06F2221/2153

    摘要： A method and apparatus for acquiring and removing information regarding a digital rights object are provided. The method for acquiring removing information regarding a digital rights object includes receiving a request for data on a rights object from a device, processing the data on the rights object in response to the request, and providing the processed data to the device. The method of removing a digital rights object includes selecting information regarding a rights object to be removed, encrypting the selected information regarding the rights object using a common encryption key, embedding the encrypted information regarding the rights object into a signal to be transmitted to a portable storage device, and transmitting the signal to the portable storage device. A device requests information regarding a rights object from a portable storage device, receives the information regarding the rights object from the portable storage device, and removes an unnecessary rights object.

    摘要翻译： 提供了一种用于获取和去除关于数字版权对象的信息的方法和装置。 用于获取去除关于数字版权对象的信息的方法包括从设备接收关于权限对象的数据的请求，响应于该请求处理权限对象上的数据，并将处理的数据提供给设备。 删除数字版权对象的方法包括选择关于要删除的权利对象的信息，使用公共加密密钥加密所选择的关于权利对象的信息，将关于权利对象的加密信息嵌入待发送的信号到便携式 存储设备，并将该信号发送到便携式存储设备。 设备从便携式存储设备请求有关权限对象的信息，从便携式存储设备接收关于权限对象的信息，并且移除不必要的权限对象。

    Digital rights management structure, portable storage device, and contents management method using the portable storage device
    9.
    发明申请
    Digital rights management structure, portable storage device, and contents management method using the portable storage device 审中-公开
    数字版权管理结构，便携式存储装置以及使用便携式存储装置的内容管理方法

    公开(公告)号：US20050210236A1

    公开(公告)日：2005-09-22

    申请号：US11085198

    申请日：2005-03-22

    申请人： Byung-rae Lee ,  Tae-sung Kim ,  Kyung-im Jung ,  Yun-sang Oh

    发明人： Byung-rae Lee ,  Tae-sung Kim ,  Kyung-im Jung ,  Yun-sang Oh

    IPC分类号： G06F17/00 ,  G06F21/00 ,  H04L9/00

    CPC分类号： G06F21/10 ,  G06F21/78

    摘要： A digital rights management (DRM) structure, a portable storage device, and a contents management method using the portable storage device are provided to facilitate the move of a rights object or encrypted content. The digital rights management structure includes a security section comprising private key information and cryptographic method which are needed to decrypt information that has been encrypted by a host device, a restriction section comprising authentication information needed for authentication with the host device and rights object information regarding content, and a data section comprising encrypted content which the host device attempts accessing.

    摘要翻译： 提供数字权限管理（DRM）结构，便携式存储设备和使用便携式存储设备的内容管理方法，以便于移动权利对象或加密的内容。 数字版权管理结构包括包括私密密钥信息和加密方法的安全部分，该密钥信息和密码方法是解密由主机设备加密的信息所必需的，限制部分包括与主机设备认证所需的认证信息和关于内容的权限对象信息 以及包括主机设备尝试访问的加密内容的数据部分。

    Authentication between device and portable storage
    10.
    发明授权
    Authentication between device and portable storage 失效
    设备和便携式存储之间的认证

    公开(公告)号：US08209535B2

    公开(公告)日：2012-06-26

    申请号：US11085160

    申请日：2005-03-22

    申请人： Byung-rae Lee ,  Tae-sung Kim ,  Joong-chul Yoon ,  Kyung-im Jung

    发明人： Byung-rae Lee ,  Tae-sung Kim ,  Joong-chul Yoon ,  Kyung-im Jung

    IPC分类号： H04L29/06

    CPC分类号： H04L9/3273 ,  G06F21/445 ,  G06F2221/2103 ,  H04L9/0844 ,  H04L9/3268 ,  H04L2209/603

    摘要： For digital rights management (DRM), a method for performing authentication between a device and a portable storage, which is performed by the device, includes transmitting a first key to the portable storage, receiving a third key and a first encrypted random number obtained by encrypting a first random number using the first key from the portable storage and decrypting the first encrypted random number using a second key related with the first key, generating a second encrypted random number by encrypting a second random number using the third key and transmitting the second encrypted random number to the portable storage, and generating a session key using the first random number and the second random number. The technique guarantees secure authentication between the device and the portable storage for DRM.

    摘要翻译： 对于数字版权管理（DRM），由设备执行的用于执行设备和便携式存储之间的认证的方法包括：向便携式存储发送第一密钥，接收第三密钥和第一密钥，以及由第 使用来自便携式存储器的第一密钥对第一随机数进行加密，并使用与第一密钥相关的第二密钥解密第一加密随机数，通过使用第三密钥加密第二随机数生成第二加密随机数，并发送第二随机数 加密的随机数，并使用第一随机数和第二随机数生成会话密钥。 该技术保证了设备与DRM的便携式存储之间的安全认证。