摘要:
The present invention provides an access control method of controlling acceptance or rejection of access to content from metadata. The access control method according to the present invention includes a step of producing metadata 3A for content 6A and embedding a digital signature 4A of a producer who has produced the metadata as producer information in the produced metadata 3A, a step of embedding an identifier 5A indicating which metadata are accessible to the content in license information required to play back the content 6A, and an access propriety control step of comparing the digital signature 4A with the identifier 5A to control propriety of access to the content 6A from the produced metadata 3A.
摘要翻译:本发明提供一种访问控制方法,用于控制从元数据访问内容的接受或拒绝。 根据本发明的访问控制方法包括以下步骤:为内容6A生成元数据3A,并将生成元数据的生成者的数字签名4A嵌入到生成的元数据3A中,生成元数据3A的步骤 标识符5A,其指示在回放内容6A所需的许可证信息中内容可访问哪些元数据;以及访问适当控制步骤,用于将数字签名4A与标识符5A进行比较以控制对内容的访问的适当性 6 A从生成的元数据3 A.
摘要:
The present invention provides an access control method of controlling acceptance or rejection of access to content from metadata. The access control method according to the present invention includes a step of producing metadata 3A for content 6A and embedding a digital signature 4A of a producer who has produced the metadata as producer information in the produced metadata 3A, a step of embedding an identifier 5A indicating which metadata are accessible to the content in license information required to play back the content 6A, and an access propriety control step of comparing the digital signature 4A with the identifier 5A to control propriety of access to the content 6A from the produced metadata 3A.
摘要:
An authentication system includes node devices, wherein a first node device transmits the authentication information thereof to a second node device, the second node device selects third node devices that are requested to verify the validity of the received authentication information, and transmits the authentication information to each of the selected third node devices, the third node device records verification information that is used to verify the validity of the authentication information of the first node device, verifies the validity of the authentication information on the basis of the authentication information and verification information, and transmits the result information to the second node device, and the second node device further derives weighted values indicating the reliability of the each verification of the third node devices and authenticates the first node device on the basis of the each result information and the each weighted value received from the third node devices.
摘要:
In order to provide various service types to the users in a case of supplying the contents constituted from multiple resources via broadcast, the following apparatuses are provided. An encryption apparatus (100) encrypts the resources-to-be-encrypted of the contents, stores the encrypted resources in the packets and transmits the packets via broadcast. An encryption portion which encrypts each of contents constituted from multiple resources by applying a corresponding encryption key and generates and transmits packets that store encrypted data or non-encrypted data of the resources. A licensing apparatus (2) providing a license via communication network while the license includes both a license identifier which indicates a broadcast range in which the license is effective and the decryption key provided in correspondence with each of resources-to-be-encrypted. A decryption apparatus (300), by using the corresponding decryption key included in the license received via communications lines, decrypts the encrypted data of the packets received via broadcast.
摘要:
For enabling single sign-on among applications, a linkage ID indicating connection between the authentication apparatus 1 including the client function and the server apparatus 2 is shared among a plurality of applications. For that, a SV information management unit Aa of the authentication apparatus 1 having the client function manages the linkage ID by storing it in a predetermined storing unit. An AP information management unit Ab manages and stores connection information between applications in a predetermined storing unit, wherein the connection information includes an application name corresponding to an application. Then, an AP decision unit determines whether an application name included in a received linkage ID request is registered in the AP information management unit Ab, obtains the linkage ID from the SV information management unit Aa when the application name is registered in the AP information management unit Ab, and returns the linkage ID to a source of the linkage ID request.
摘要:
A node apparatus includes a second computation portion that references cache information held by the own node apparatus, the cache information indicating a node holding an object that is a search target in an overlay network in association with the object, and calculates, with respect to the object corresponding to the node indicated in the cache information, a distance between an object location and a node of interest in a logical space in which the overlay network is constructed, the object location being a logical location of the object, and the node of interest being a node other than the own node, and a transfer destination selection portion that selects a transfer destination to which the cache information is to be transferred, based on the distance calculated by the second computation portion. The cache information is transferred to the transfer destination selected by the transfer destination selection portion.
摘要:
For enabling single sign-on among applications, a linkage ID indicating connection between the authentication apparatus 1 including the client function and the server apparatus 2 is shared among a plurality of applications. For that, a SV information management unit Aa of the authentication apparatus 1 having the client function manages the linkage ID by storing it in a predetermined storing unit. An AP information management unit Ab manages and stores connection information between applications in a predetermined storing unit, wherein the connection information includes an application name corresponding to an application. Then, an AP decision unit determines whether an application name included in a received linkage ID request is registered in the AP information management unit Ab, obtains the linkage ID from the SV information management unit Aa when the application name is registered in the AP information management unit Ab, and returns the linkage ID to a source of the linkage ID request.
摘要:
An authentication system includes node devices, wherein a first node device transmits the authentication information thereof to a second node device, the second node device selects third node devices that are requested to verify the validity of the received authentication information, and transmits the authentication information to each of the selected third node devices, the third node device records verification information that is used to verify the validity of the authentication information of the first node device, verifies the validity of the authentication information on the basis of the authentication information and verification information, and transmits the result information to the second node device, and the second node device further derives weighted values indicating the reliability of the each verification of the third node devices and authenticates the first node device on the basis of the each result information and the each weighted value received from the third node devices.