一种分散变色龙哈希函数的链上隐私数据编辑机制
Privacy Data Editing Mechanism Based on Distributed Chameleon Hash Function
黄寿孟 1杨博雄 2杨明3
作者信息
- 1. 三亚学院信息与智能工程学院 海南三亚 572022;三亚学院陈国良院士团队创新中心 海南三亚 572022
- 2. 三亚学院陈国良院士团队创新中心 海南三亚 572022
- 3. 三亚学院容淳铭院士工作站 海南三亚 572022
- 折叠
摘要
随着区块链技术广泛应用于各个领域,数据安全及用户隐私出现了很多未知威胁和挑战.对于恶意携带用户隐私或者携带非法攻击代码的非法交易数据,通过属性策略、变色龙哈希算法,设计了基于多方监控的变色龙哈希碰撞数据编辑机制(DecPRB),该DecPRB机制是在变色龙哈希编辑机制的基础上,优化设计以方便管理的陷门哈希函数,通过计算哈希碰撞实现区块链历史数据编辑,即可将在区块链上公开的那些非法数据(特别是隐私数据或攻击代码)删除,当然在更新编辑过程中,所有修改权限由链上所有节点共同监控.最后通过安全性分析推理出DecPRB机制,既不改变区块链的安全属性,又具有很强的抗攻击能力,再通过仿真实验验证DecPRB机制具有一定的有效性,符合数据安全需求.该DecPRB机制在复杂的分布式网络环境中(特别是分布式的云计算和区块链系统)能有效保护数据安全和隐私问题,对数字经济时代的发展作出一定的贡献.
Abstract
With the widespread application of blockchain technology in various fields,data security and user privacy are faced with many unknown threats and challenges.For illegal transaction data that maliciously carries user privacy or illegal attack code,a chameleon hash collision data editing mechanism(DecPRB)based on multi-party monitoring is designed through attribute strate-gy and chameleon hash algorithm.This DecPRB mechanism is based on the chameleon hash editing mechanism,optimized and de-signed with a trapdoor hash function that is easy to manage.By calculating hash collisions,blockchain historical data editing is achieved,illegal data(especially private data or attack code)that is publicly available on the blockchain can be deleted.Of course,during this update and editing process,all modification permissions are jointly monitored by all nodes on the chain.Finally,through security analysis,it is inferred that the DecPRB mechanism does not change the security attributes of the blockchain and has strong anti attack capabilities.Simulation experiments are conducted to verify the effectiveness of the DecPRB mechanism,which meets data security requirements.DecPRB mechanism can effectively protect data security and privacy issues in complex distributed network environments,especially distributed cloud computing and blockchain systems,and make a certain contribution to the development of the digital economy era.
关键词
哈希函数/隐私数据/编辑机制/变色龙哈希Key words
Hash function/Privacy data/Editing mechanism/Chameleon hash引用本文复制引用
基金项目
海南省自然科学基金(622RC735)
海南省院士创新平台科研项目(YSPTZX202144)
海南省院士创新平台科研项目(YSPTZX202145)
三亚学院校级重大项目(USY22XK-04)
出版年
2024
NETL
NSTL
万方数据