摘要:
IC card (300) supplies an encryption key which enables content use, to a terminal apparatus (200) belonging to a domain made up of terminal apparatuses (200) which share the IC card (300). The IC card (300) includes: an extra-domain usage rule holding unit (305) which stores a rule for use of the IC card (300) in a terminal apparatus (200) which is outside of the domain; and an extra-domain use permission judgment unit (309) which judges, according to the usage rule, whether or not use of the IC card (300) is permitted, when the IC card (300) is provided to the terminal apparatus (200). The IC card (300), in addition, supplies the encryption key to the terminal apparatus (200) which is outside of the domain, when the extra-domain use permission judgment unit (309) judges that use is permitted.
摘要:
A broadcast station that is a transmission device assigns an ID and a license transformation period to a license to be generated, and transmits to a terminal apparatus 102, in order to provide a digital right management system which can provide a protection for the rights of a provider while preventing an unauthorized obtainment of a license to be transmitted through a digital broadcast. The terminal apparatus 102 records a license import log including the license ID and license transformation period assigned to the license. Further, the terminal apparatus 102 controls a license obtainment in the case where the same license has been obtained by the time of obtaining the license. Furthermore, the license received by the terminal apparatus 102 is kept at least until the license transformation period expires.
摘要:
A content using system is composed of a content importing apparatus and at least one content using apparatus. The content importing apparatus includes a content ID generating unit that generates a content ID, and a content key information encryption converting unit that converts the encryption of content key information by using an encryption key (“network key”) that is shared in advance on the network. The content using apparatus includes a content key information decrypting unit that decrypts the content key information, whose encryption has been converted, by using the network key, a moved content list storing unit for storing a moved content list (MCL) in which the content IDs of contents that have been written onto a storage medium are written, and a moved content list managing unit that judges whether the writing of a content is permitted or prohibited based on the MCL.
摘要:
A content reproduction control system comprising a server apparatus and a terminal apparatus that are connected via a communication path, wherein the server apparatus includes: based on time information attached to a content, a control information generation unit operable to generate control information for specifying a range for permitting or prohibiting a user's predetermined operation in the terminal apparatus; and a distribution unit that distributes the control information to the terminal apparatus, the terminal apparatus includes: a content use unit operable to use the content; a receiving unit operable to receive the control information; and a content use control unit operable to control reproduction of the content based on the received control information.
摘要:
An application management device 54 that is capable of judging the necessity of application deletion with little load includes: a DRM application DB 520 that stores plural applications in association with their respective identification information (DRM application IDs) for identifying a correspondence between a license and an application for processing such license; and a DRM application deletion judgment unit 527 that judges, for each of the applications stored in the DRM application DB 520, whether deletion of an application is necessary or not, based on the identification information. More specifically, the application management device 54 further includes a license DB 521 for storing each license in association with the identification information, and the DRM application deletion judgment unit 527 judges that an application whose license associated with the identification information is not stored in the license DB 521, is an application to be deleted.
摘要翻译:能够以少量负载判断应用删除的必要性的应用管理设备54包括:DRM应用DB 520,其与其各自的识别信息(DRM应用ID)相关联地存储多个应用,用于识别许可证和 申请处理该等牌照; 以及DRM应用删除判定单元527,根据识别信息,判断存储在DRM应用DB 520中的每个应用是否需要删除应用。 更具体地说,应用程序管理装置54还包括用于与识别信息相关联地存储每个许可的许可DB 521,并且DRM应用删除判断单元527判断与该识别信息相关联的许可证的应用未被存储在许可证中 DB 521,是要删除的应用程序。
摘要:
A process for producing an amorphous semiconductor membrane. A predetermined gas is introduced into a vacuum chamber which is decomposed by a discharge phenomenon. The discharge phenomenon is caused by an electric field made up of a high frequency electric field or pulsed electric field superposed on a DC electric field.