公开(公告)号：US20050216419A1

公开(公告)日：2005-09-29

申请号：US11091825

申请日：2005-03-29

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

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

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

CPC classification number: G06F21/606 ,  G06F21/10 ,  G06F2221/2135 ,  G06F2221/2137 ,  G06F2221/2143 ,  G06F2221/2153

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050210241A1

公开(公告)日：2005-09-22

申请号：US11085468

申请日：2005-03-22

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

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

IPC: G06F17/00 ,  G06F21/10 ,  H04L9/00 ,  H04L9/32

CPC classification number: H04L63/0823 ,  G06F21/10 ,  H04L9/3268 ,  H04L9/3273 ,  H04L63/0869 ,  H04L2209/603

Abstract: A digital rights management method includes a stage for a device to update a Certificate Revocation List of the device through a connection to a portable storage, a stage to access to the updated Certificate Revocation List so as to judge the effectiveness of a certificate of the portable storage, and a stage to maintain communication with the portable storage, if the judgment proves the effectiveness of the portable storage.

Abstract translation: 数字版权管理方法包括用于通过与便携式存储器的连接更新设备的证书吊销列表的装置的阶段，访问更新的证书吊销列表的阶段，以便判断便携式的证书的有效性 存储和与便携式存储器保持通信的阶段，如果判断证明便携式存储器的有效性。

公开(公告)号：US20050210236A1

公开(公告)日：2005-09-22

申请号：US11085198

申请日：2005-03-22

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

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

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

CPC classification number: G06F21/10 ,  G06F21/78

Abstract: 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.

Abstract translation: 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。