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Efficient cross-domain authentication scheme based on blockchain technology

ZHOU Zhicheng;LI Lixin;LI Zuohui;Information Engineering University;  
To solve the efficiency problem of the existing Public Key Infrastructure( PKI) cross-domain authentication scheme, by using blockchain technology with the advantages of distributed multi-center, collective maintenance and not being easy to tamper, an effective cross-domain authentication scheme was proposed, including Block Chain Certificate Authority( BCCA) trust model and system architecture, blockchain certificate format and user cross-domain authentication protocol, as well as the security and efficiency. The results show that in terms of security, the scheme has security attributes such as mutual entity authentication; in terms of efficiency, compared with the existing cross-domain authentication scheme, by taking advantage of blockchain mechanism such as not being easy to tamper, and hash algorithm, the number of signature and verification of public key algorithm is reduced, which enhances the efficiency of cross-domain authentication.
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