基于教育区块链与无证书签名的身份认证方案

针对当前教育资源共享安全性低和身份认证困难的问题, 提出了一种区块链技术与无证书签名相结合的可跨域身份认证方案, 将无证书签名技术的高安全性、无密钥托管问题等优点应用到区块链的分布式网络中, 实现了身份认证过程中用户安全、跨域认证、恶意用户可追溯、注册信息不可篡改. 首先, 基于教育区块链与无证书签名的身份认证方案是建...

Identity Authentication Scheme Based on Educational Blockchain and Certificateless Signature

To address the low security and identity authentication difficulties of education resource sharing, this paper proposed a cross-domain identity authentication scheme based on blockchain technology and certificateless signature. The user security, cross-domain authentication, traceability of malicious users, and non-tamperable registration information were realized during the identity authentication process by the sharing of high security and no need for key escrow in the certificateless signature technology with blockchain distributed networks. First, intra-domain blockchain and cross-domain blockchain were design to facilitate the cross-domain authentication by a blockchain-based identity authentication model. Then, user safety and traceability of malicious users were guaranteed by certificateless signature and trapdoor hash functions in the authentication phase. Through the analysis, this scheme meets the security attributes such as mutual authentication and user identity security. Compared with other schemes, it has advantages in computing overhead and communication overhead. The scheme can better meet the computing environment with limited computing power on the user side.