区块链跨链安全接入与身份认证方案研究与实现

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

文章提出一种区块链跨链安全接入与身份认证方案,针对跨链技术中的接入链安全接入与跨链身份认证问题,设计安全的跨链模型架构,采用数字身份ID作为区块链整个跨链网络的全局标识符,完成跨链交易的身份认定。文章提出了基于中继链的IBE的跨链身份认证方案,通过中继链进行接入链安全接入与跨链身份认证,同时采用安全密钥协商策略,对进行跨链交易的两条链进行交易信息加密传输,确保交易信息的匿名安全性,解决了现有跨链模型中的安全性和数据孤岛问题。实验分析和评估表明该方案是安全可行的。

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.