一种监管友好的可编辑区块链方案  

Regulatory-friendly redactable blockchain solution

作　　者：俞望年 赵赫[1] 谭海波[1,2] 程昊天 赵越 马志宇 Yu Wangnian;Zhao He;Tan Haibo;Cheng Haotian;Zhao Yue;Ma Zhiyu(Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science&Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《计算机应用研究》2024年第4期981-988,共8页Application Research of Computers

基　　金：国家重点研发计划资助项目(2021YFB2700800)。

摘　　要：现有区块链内容监管方案均采用事后治理方式,缺乏事前审计,且存在签名失效和多版本区块验证效率低的问题。针对这些问题,首先,设计了一种可动态调整可追责的数据审计方法,实现了对区块链交易数据的事前审计;其次,设计了一种编辑可控的数字签名方案RCDSS(redaction-controlled digital signature scheme),解决了因编辑操作造成的签名失效问题;最后,设计了一种区块链数据一致性验证协议,实现了对查询结果的高效验证。安全分析和性能测试结果表明了其安全性和有效性。该方案在实现监管可控的情况下,仍然保持了较高的区块生成和验证效率,为区块链内容监管提供了一种新的解决思路。Existing blockchain content supervision schemes adopt ex-post governance methods,lack of pre-audit,and have problems of signature invalidity and low efficiency of multi-version block verification.To address these problems,firstly,this paper designed a dynamically adjustable and accountable data audit method to realize prior audit of blockchain transaction data.Secondly,it designed a redaction-controlled digital signature scheme to solve the problem of signature invalidity caused by editing operations.Finally,it designed a blockchain data consistency verification protocol to achieve efficient verification of query results.The results of security analysis and performance testing demonstrate the security and effectiveness of the scheme.In the case of controllable supervision,the scheme still maintains high efficiency in block generation and verification,and it provides a new solution for blockchain content supervision.

关 键 词：区块链 监管 审计 可编辑 数据一致性 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]