Technologies of blockchain interoperability:A survey  

作　　者：Haonan Yuan Shufan Fei Zheng Yan 

机构地区：[1]The State Key Lab of ISN,School of Cyber Engineering,Xidian University,266 Xinglong Section of Xifeng Road,Xi’an,Shaanxi,710071,China

出　　处：《Digital Communications and Networks》2025年第1期210-224,共15页数字通信与网络(英文版)

基　　金：supported in part by the National Natural Science Foundation of China under Grant 62072351;in part by the Key Research Project of Shaanxi Natural Science Foundation under Grant 2023-JCZD-35;in part by the open research project of ZheJiang Lab under grant 2021PD0AB01。

摘　　要：Blockchain technology is increasingly popular and has been widely applied in many industrial fields,due to its unique properties of decentralization,immutability,and traceability.Blockchain systems in different fields vary,with different block structures,consensus mechanisms and access permission models.These differences make it hard for different blockchain systems to interoperate with each other,which isolates them.Cross-chain technologies have been developed to solve this isolation problem in order to improve the interoperability of blockchains.Although some surveys on cross-chain technologies can be found,they are unable to keep up with the latest research progress due to their extremely fast pace of development.Moreover,the literature misses general criteria to evaluate the quality of cross-chain technologies.In this paper,a comprehensive literature review of cross-chain technologies is conducted by employing a comprehensive set of evaluation criteria.The preliminaries on blockchain interoperability are first presented.Then,a set of evaluation criteria is proposed in terms of security,privacy,performance,and functionality.The latest cutting-edge works are reviewed based on the proposed taxonomy of cross-chain technologies and their performance is evaluated against our proposed criteria.Finally,some open issues and future directions of cross-chain research are pointed out.

关 键 词：Blockchain Blockchain interoperability Cross-chain technology 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]