基于区块链和动态累加器的跨域认证方案

Cross-domain authentication scheme based on blockchain and dynamic accumulator

摘要:

基于区块链的跨域认证利用区块链代替传统的CA机构颁发区块链证书，借助区块链的去中心化和透明性，实现了信任的去中心化。针对现有基于区块链的跨域认证存在着跨域认证效率不高，没有完整的证书管理功能、区块链存储证书开销大的问题，提出了基于区块链和动态累加器的跨域认证方案，设计了区块链证书格式，描述了跨域认证协议，将区块链证书信息映射为累加值，提升了验证效率，通过在智能合约中构建动态累加器，实现证书的注册，撤销和查询功能。实验结果表明，该方案能够有效降低区块链证书存储成本，提升跨域认证效率。

Abstract:

Cross-domain authentication based on blockchain uses blockchain to replace traditional CA institutions to issue blockchain certificates, and with the help of the decentralization and transparency of blockchains, the decentralization of trust is realized. In view of the existing cross-domain authentication based on blockchain, the efficiency of cross-domain authentication is not high, there is no complete certificate management function, and the blockchain storage certificate is expensive. A cross-domain based on blockchain and dynamic accumulator is proposed. In the authentication scheme, the blockchain certificate format is designed, the cross-domain authentication protocol is described, the blockchain certificate information is mapped to the accumulated value, and the verification efficiency is improved. By constructing a dynamic accumulator in the smart contract, the registration and revocation of the certificate are realized. And query function. Experimental results show that this scheme can effectively reduce the cost of blockchain certificate storage and improve the efficiency of cross-domain authentication.