Cloud computing cross-domain identity authentication method

Abstract

The invention belongs to the technical field of cloud computing, and particularly relates to a cloud computing cross-domain identity authentication method, which comprises the following participants:(1) a cloud service provider group member CSP provides various cloud services for a user in a cloud environment, and verifies the identity of the user; (2) the user group member US accesses the cloudservice to complete a cross-domain identity authentication process of a cloud service provider; (3) the group administrator GM is responsible for joining group members and opening signatures so as totrack group member information; and (4) the group center GC initializes system parameters and issues a group member certificate, and the group administrator also participates in the group member certificate issuing process and simultaneously exposes group member identity responsibility. According to the method, identity authentication between the user and the cloud service provider under differenttrust domains is realized by utilizing the security of the group signature and the validity verification of the message, so that the user identity anonymity is ensured, and meanwhile, the user identity traceability is realized, and the cloud computing has higher security.

Description

technical field [0001] The invention belongs to the technical field of cloud computing, and specifically relates to a cloud computing cross-domain identity authentication method. Background technique [0002] Cloud computing is a new type of computing model that is developing most rapidly in the current society. It integrates technologies such as grid computing, parallel computing, distributed computing, and network storage to utilize a large number of network resources, physical resources, service resources, and data resources. Combined with computer clusters, it provides cloud users with massive shared virtual resources and is widely used in various fields. However, with the rapid development of cloud computing, it also faces a variety of security issues. Identity authentication is the foundation of cloud computing security and provides assurance for the identity authenticity of users and cloud service providers. Each cloud server provider belongs to different trust domai...

AI Technical Summary

Problems solved by technology

C.S.Luo et al improved the signature process by introducing the elliptic curve encryption algorithm, so that the verification result of the public cloud for all users is constant to avoid the public cloud from obtaining user characteristics, so that the user's access records cannot be tracked, and user privacy is protected.

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