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    • 2. 发明申请
    • LICENSE MANAGEMENT SYSTEM
    • 许可管理系统
    • US20110060922A1
    • 2011-03-10
    • US12089181
    • 2006-10-03
    • Takamitsu SasakiSatoshi NiwanoTakuji Hiramoto
    • Takamitsu SasakiSatoshi NiwanoTakuji Hiramoto
    • G06F12/14G06F21/00
    • G06F21/10G06F2221/0711G06Q10/06G06Q10/10
    • A history file that an IC card received from a receiver is confirmed to be a proper history file, so that a repeat input of a license can be prevented. A server (100) which transmits a license that has a usage condition of content includes: a classification key generating unit (101) which generates a classification key that has a history file ID for uniquely identifying each of a plurality of history files on which license-input history on the receiver side is recorded, the license-input history being distributed among the history files; a license issuing unit (103) which issues a license that has the usage condition of content in association with the classification key generated by the classification key generating unit (101); and a server communicating unit (104) which transmits the classification key and the license associated with the classification key.
    • 从接收器接收的IC卡的历史文件被确认为正确的历史文件,从而可以防止许可证的重复输入。 发送具有内容的使用条件的许可证的服务器(100)包括:分类密钥生成单元(101),生成分类密钥,该分类密钥具有用于唯一地识别多个历史文件中的每个的许可证的历史文件ID 记录接收方的输入历史记录,许可证输入历史记录分布在历史文件中; 许可证发行单元(103)发布具有与分类密钥生成单元(101)生成的分类密钥相关联的内容的使用条件的许可证; 以及发送分类密钥和与分类密钥相关联的许可证的服务器通信单元(104)。
    • 3. 发明授权
    • License management device and method
    • 许可证管理装置和方法
    • US07835993B2
    • 2010-11-16
    • US11995471
    • 2006-07-11
    • Ryuichi OkamotoTakuji HiramotoAtsunori Sakurai
    • Ryuichi OkamotoTakuji HiramotoAtsunori Sakurai
    • G06F21/00
    • G06F21/10H04L9/0833H04L2209/60
    • Security is secured according to the type of a license so that unnecessary processing load is reduced. A license accumulation control unit (102) and a license transfer control unit (103) identifies a usage-rule type (204) which indicates whether or not a license (200) includes a usage rule (205) which requires updating each time a content is used, and encrypts the license (200) by using different encrypting methods depending on whether or not the usage rule (205) is included in the license (200). The license accumulation control unit (102) encrypts a content key: with a domain key when the license 200 does not include the usage rule (205); and with a license management device unique key, when the usage rule (205) is included, and accumulates the encrypted key in a license accumulation unit (110). The license transfer control unit (103), when the license (200) does not include the usage rule (205), reads the license (200) from the license accumulation unit (110) and transfers the license (200) with encryption maintained by using a license transfer unit (transfer method B) (105).
    • 根据许可证的类型确保安全性,从而减少不必要的处理负担。 许可证累积控制单元(102)和许可证传送控制单元(103)标识使用规则类型(204),其指示许可证(200)是否包括每次需要更新的使用规则(205) 并且根据使用规则(205)是否包括在许可证(200)中,使用不同的加密方法来加密许可证(200)。 当许可证200不包括使用规则(205)时,许可证累积控制单元(102)利用域密钥加密内容密钥; 并且当包括使用规则(205)时,使用许可证管理装置唯一密钥,并将加密的密钥累加在许可证累积单元中。 许可证传输控制单元(103)当许可证(200)不包括使用规则(205)时,从许可证累积单元(110)读取许可证(200),并且将许可证(200)以 使用许可证转让单位(转让方式B)(105)。
    • 9. 发明申请
    • LICENSE MANAGEMENT DEVICE AND METHOD
    • 许可管理设备和方法
    • US20090151000A1
    • 2009-06-11
    • US11995471
    • 2006-07-11
    • Ryuichi OkamotoTakuji HiramotoAtsunori Sakurai
    • Ryuichi OkamotoTakuji HiramotoAtsunori Sakurai
    • G06F21/00H04L9/08
    • G06F21/10H04L9/0833H04L2209/60
    • Security is secured according to the type of a license so that unnecessary processing load is reduced. A license accumulation control unit (102) and a license transfer control unit (103) identifies a usage-rule type (204) which indicates whether or not a license (200) includes a usage rule (205) which requires updating each time a content is used, and encrypts the license (200) by using different encrypting methods depending on whether or not the usage rule (205) is included in the license (200). The license accumulation control unit (102) encrypts a content key: with a domain key when the license 200 does not include the usage rule (205); and with a license management device unique key, when the usage rule (205) is included, and accumulates the encrypted key in a license accumulation unit (110). The license transfer control unit (103), when the license (200) does not include the usage rule (205), reads the license (200) from the license accumulation unit (110) and transfers the license (200) with encryption maintained by using a license transfer unit (transfer method B) (105).
    • 根据许可证的类型确保安全性,从而减少不必要的处理负担。 许可证累积控制单元(102)和许可证传送控制单元(103)标识使用规则类型(204),其指示许可证(200)是否包括每次需要更新的使用规则(205) 并且根据使用规则(205)是否包括在许可证(200)中,使用不同的加密方法来加密许可证(200)。 当许可证200不包括使用规则(205)时,许可证累积控制单元(102)利用域密钥加密内容密钥; 并且当包括使用规则(205)时,使用许可证管理装置唯一密钥,并将加密的密钥累加在许可证累积单元中。 许可证传输控制单元(103)当许可证(200)不包括使用规则(205)时,从许可证累积单元(110)读取许可证(200),并且将许可证(200)以 使用许可证转让单位(转让方式B)(105)。