Netinfo Security ›› 2022, Vol. 22 ›› Issue (6): 61-72.doi: 10.3969/j.issn.1671-1122.2022.06.007

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Research and Implementation of Cross-Chain Security Access and Identity Authentication Scheme of Blockchain

WANG Shushuang, MA Zhaofeng(), LIU Jiawei, LUO Shoushan   

  1. The School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2022-02-20 Online:2022-06-10 Published:2022-06-30
  • Contact: MA Zhaofeng E-mail:mzf@bupt.edu.cn

Abstract:

This paper proposes a blockchain cross-chain secure access and identity authentication scheme. Aiming at the research on access chain secure access and cross-chain identity authentication in cross-chain technology, a secure cross-chain model architecture is designed. The digital identity is used as the global identifier of the whole cross chain network of the blockchain to complete the identity identification of cross-chain transactions. A cross-chain identity authentication scheme of IBE based on relay chain is proposed. The access chain security access and cross-chain identity authentication are carried out through relay chain. At the same time, the transaction information of the two chains carrying out cross-chain transactions is encrypted and transmitted by using security key negotiation strategy, so as to ensure the anonymity security of transaction information and solve the problems of security and isolated data island in the existing cross-chain model. Finally, the experimental analysis and evaluation show that the scheme is safe and feasible.

Key words: cross-chain, identity authentication, IBE authentication, key agreement

CLC Number: