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    • 3. 发明公开
    • 권한 재위임에 의해 권리 객체를 생성하는 방법 및 그 장치
    • 通过授权建议产生权利对象的方法
    • KR1020080021423A
    • 2008-03-07
    • KR1020060084827
    • 2006-09-04
    • 삼성전자주식회사
    • 강보경이재원
    • G06F17/00G06F21/24
    • G06F21/105G06F2221/2129G06F2221/2145Y10S705/903
    • A method and a device for generating an RO(Rights Object) by recommitting authority are provided to enable a user to share DRM(Digital Rights Management) contents with the device not included in the same domain irrespective of permission of an RI(Rights Issuer) or a representative device by recommitting the authentication for generating the RO between the devices connected to the RI in a chain mode. A controller(210) authenticates a first device, which is included in the same domain and is the representative device of the domain, receiving first commitment information from an RI and manages a first RO received from the first device. A recommitted authority storing part(220) stores third authority commitment information based on second authority commitment information received from the first device. An RO generator(230) modifies the first RO to a second RO by using the second authority commitment information. A transceiver(260) transmits the third authority commitment information and the second RO to an unauthorized device not included in the same domain. The first device receives the third RO and the first authority commitment information from the RI through authentication with the RI, and modifies the third RO to the first RO by using the first authority commitment information. An encoding/decoding unit(240) provides the RO generator with an encoding function by which the RO generator can encodes the rights object.
    • 提供了通过重新授权来生成RO(权利对象)的方法和装置,以使用户能够与不包括在同一域中的设备共享DRM(数字版权管理)内容,而不管RI的许可(权利发行者) 或代表性设备,通过重新认证用于在链模式下连接到RI的设备之间生成RO。 控制器(210)认证第一设备,该第一设备被包括在同一域中,并且是域的代表性设备,从RI接收第一承诺信息并管理从第一设备接收的第一RO。 重新提交的权限存储部分(220)基于从第一设备接收的第二授权承诺信息存储第三权限承诺信息。 RO生成器(230)通过使用第二权限承诺信息将第一RO修改为第二RO。 收发器(260)将第三权限承诺信息和第二RO发送到未包括在同一域中的未授权设备。 第一设备通过与RI的认证从RI接收第三RO和第一权限承诺信息,并且通过使用第一授权承诺信息将第三RO修改为第一RO。 编码/解码单元(240)向RO生成器提供编码功能,通过该编码功能,RO生成器可以对权利对象进行编码。