Access control system and method supporting cross-domain data sharing, and wireless communication system

A data sharing and access control technology, applied in wireless communications, digital transmission systems, transmission systems, etc., can solve problems such as difficult application, different identification, data access control, etc., to avoid collusion attacks, improve decryption efficiency, and computing power. strong effect

CN110636500BActive Publication Date: 2022-04-05XIDIAN UNIV
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-04-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of wireless communication networks, and discloses an access control system and method supporting cross-domain data sharing, and a wireless communication system. Users in domain A who need to share data select elliptic curve parameters to generate ECC key pairs; domain B The global certification center CA of the global certification center CA generates global public parameters; the proxy node in domain B uses the ECC public key of domain A user to encrypt the system public key and attribute set; domain A user uses its own ECC private key to decrypt the data from domain B, upload to the public cloud; the legitimate user sends a file access request to the public cloud; when the user revokes, the proxy server will search for the corresponding attribute private key list according to the user's global identifier and delete it. The present invention has high security under the condition of equal key length. Give full play to the characteristics of strong computing power of proxy nodes, complete some data preprocessing work, and help users partially decrypt, improving user decryption efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of wireless communication networks, and in particular relates to an access control system and method supporting cross-domain data sharing, and a wireless communication system. Background technique

[0002] For the security and unified management of network resources, computer networks are always divided into many independent autonomous management domains. In different domains, users and resources are managed using different policies. For example, all governments, banks, and social networks have their own management and service systems, which are called a management domain. With the rapid development of information technology, users' demand for data sharing is gradually increasing. Data sharing in a single domain can no longer meet the needs of users, and the data needed by a certain user may be in another management domain. For example, a WeChat user wants to share data with QQ users, and at the same time...

Examples

Embodiment Construction

[0072] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0073] Aiming at the problems existing in the prior art, the present invention provides an access control system and method supporting cross-domain data sharing, and a wireless communication system. The present invention will be described in detail below with reference to the accompanying drawings.

[0074] like figure 1 As shown, the embodiment of the present invention provides an access control system supporting cross-domain data sharing including:

[0075] Domain A user initialization module 1, used to realize the generation of the user's ECC public key / private key pair;

[0076] Domain B initialization module 2 is use...