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    • 3. 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)。
    • 4. 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)。