面向区块链贸易系统的无管理者安全模型  

Security model without managers for blockchain trading system

作　　者：黄龙霞 王良民[1] 张功萱[2] HUANG Longxia;WANG Liangmin;ZHANG Gongxuan(School of Computer Science and Communication Engineering,Jiangsu University,Zhenjiang 212013,China;School of Computer Science and Engineering,Nanjing University of Science&Technology,Nanjing 210094,China)

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013 [2]南京理工大学计算机科学与技术学院,江苏南京210094

出　　处：《通信学报》2020年第12期36-46,共11页Journal on Communications

基　　金：国家重点研发计划基金资助项目(No.2017YFB1400700);江苏省自然科学基金资助项目(No.BK20200888);国家自然科学基金资助项目(No.61702230,No.62002139);中国博士后科学基金资助项目(No.2019M651738);江苏省高等学校自然科学研究基金资助项目(No.19KJB510021)。

摘　　要：针对传统集中式贸易系统中管理者滥用权力问题,提出面向区块链贸易系统的无管理者安全模型,同时解决去管理者的贸易系统由于管理员缺失导致的背书安全、贸易不及时、验证低效、动态低效等问题。所提安全模型基于区块链技术解决传统贸易系统中的中心化集权的问题,采用基于同态认证的公开审计技术实现了无管理者的安全背书、背书密钥更新及贸易的高效验证,引入基于信誉的激励机制保证了贸易的及时性。最后,通过安全证明与性能分析表明了所提安全模型的安全性和可靠性,通信和计算开销均低于IPANM。In view of the abuse of power by managers in the traditional centralized trading system,a security model without managers for the blockchain-based trading system was proposed,which also solved the problems of unsafe endorsement,untimely trading,low auditing efficiency and dynamic inefficiency caused by the elimination of managers.The proposed security model realized decentralization based on the blockchain technology,by using homomorphic authentication-based public auditing to achieve the secure endorsement and key updating for non-manager groups and efficient verification for transaction information respectively,introducing the reputation-based incentive mechanism to ensure the timeliness of the transaction.Finally,the security and reliability of the proposed security model were demonstrated by security proof and performance analysis,and the communication and computing costs are both lower than IPANM.

关 键 词：区块链 贸易系统 安全模型 无管理者 激励机制 

分 类 号：TN918.1[电子电信—通信与信息系统]