DRM에서의 사업자 권리를 보장하는 호환성 제공 방법 및장치
    3.
    发明授权
    DRM에서의 사업자 권리를 보장하는 호환성 제공 방법 및장치 失效
    DRM权利保护互操作性的方法与装置

    公开(公告)号:KR100942992B1

    公开(公告)日:2010-02-17

    申请号:KR1020080121568

    申请日:2008-12-03

    CPC classification number: G06F21/10 G06F2221/0728

    Abstract: PURPOSE: A method and an apparatus for right preserving interoperability in DRM are provided to use the same content in different devices and protect digital contents from illegal distribution. CONSTITUTION: A mutual identification is operated between a first DRM provider, a second DRM provider, a proxy re-encryption agent and device(S210). The IC including the key is provided from a first DRM provider in a certain level encoding(S220). The proxy key information is offered from the second DRM provider and KGC(S230). The proxy key is generated by the offered agency key information as described above(S240). By the agency key generated as described above, the key encrypted this level included in IC is the proxy re-encryption, the encrypted key to certain level is generated(S250). The IC including the key encrypted the result recoded agency task level is offered to device(S260).

    Abstract translation: 目的:提供在DRM中保持互操作性的方法和装置,以在不同的设备中使用相同的内容,并保护数字内容免受非法分发。 构成:在第一DRM提供商,第二DRM提供商,代理重新加密代理和设备之间操作相互识别(S210)。 包含该密钥的IC由具有一定等级编码的第一DRM提供者提供(S220)。 代理密钥信息由第二DRM提供商和KGC提供(S230)。 代理密钥由如上所述的提供的代理密钥信息生成(S240)。 通过如上所述生成的代理密钥,加密在IC中的该级别的密钥是代理重新加密,生成加密密钥到某一级别(S250)。 提供给包括加密结果重新编码代理任务级别的密钥的IC(S260)。

Patent Agency Ranking