License management device, license management system, license management method, and program

许可管理装置、许可管理系统、许可管理方法及程序

Abstract

This license management device causes a wireless device to be in a state in which all functions are restricted by overwriting key information of the wireless device with a default key which is unique to the wireless device. In addition, a key generation device generates an upgrade key which is unique to the wireless device and transmits the same to the license management device. Furthermore, the license management device can release restrictions of functionality in the wireless device by applying the upgrade key to the key information of the wireless device which has been overwritten with the default key.
本发明提供一种许可管理装置、许可管理系统、许可管理方法及程序。许可管理装置通过以无线装置所固有的默认密钥来重写无线装置的密钥信息,使无线装置成为全部的功能被限制的状态。另外,密钥生成装置生成无线装置所固有的升级密钥并发送到许可管理装置。然后,许可管理装置通过将升级密钥应用于以默认密钥重写后的无线装置的密钥信息,能解除无线装置中的功能的限制。

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