Blockchain-based Supervised Anonymous Cross-domain Authentication Scheme

Abstract

With the increasing complexity of the network environment, the traditional authentication technology has exposed its disadvantages such as low efficiency and power concentration. At the same time, the continuous development of information technology also puts forward higher requirements for authentication technology, for example, to realize authentication anonymization while ensuring authentication efficiency and dishonest users can be held accountable. In this paper, cross-domain authentication of heterogeneous networks is analyzed in detail, and a Blockchain-based Supervised Anonymous Cross-domain Authentication (BSA-CA) scheme is proposed. In this scheme, we retain the original infrastructure of the two trust domains. The trust network of users is established in the Blockchain system, and the trust model of heterogeneous cross-domain authentication is constructed by using zero-knowledge proof method. The BSA-CA scheme uses group signature to design anonymous supervisory properties. System analysis results show that the BSA-CA scheme has a good balance between security and authentication efficiency.