通信学报 ›› 2019, Vol. 40 ›› Issue (4): 71-82.doi: 10.11959/j.issn.1000-436x.2019084

• 学术论文 • 上一篇    下一篇

基于门限环签名的可删除区块链

任艳丽1,徐丹婷1,张新鹏1,谷大武2   

  1. 1 上海大学通信与信息工程学院,上海 200444
    2 上海交通大学电子信息与电气工程学院,上海 200240
  • 修回日期:2019-02-26 出版日期:2019-04-25 发布日期:2019-05-05
  • 作者简介:任艳丽(1982- ),女,山西运城人,博士,上海大学教授、博士生导师,主要研究方向为公钥密码学、可验证外包计算、区块链安全等。|徐丹婷(1994- ),女,浙江绍兴人,上海大学硕士生,主要研究方向为密码学与区块链。|张新鹏(1975- ),男,黑龙江鸡西人,博士,上海大学教授、博士生导师,主要研究方向为多媒体信息安全、信息隐藏、数字取证、图像处理等。|谷大武(1970- ),男,河南漯河人,博士,上海交通大学教授、博士生导师,主要研究方向为密码分析与设计、信息分析与密码工程、计算机安全体系结构等。
  • 基金资助:
    国家自然科学基金资助项目(U1736120);国家自然科学基金资助项目(61572309);国家自然科学基金资助项目(61525203);国家自然科学基金资助项目(U1636206)

Deletable blockchain based on threshold ring signature

Yanli REN1,Danting XU1,Xinpeng ZHANG1,Dawu GU2   

  1. 1 School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China
    2 School of Electronic Information and Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China
  • Revised:2019-02-26 Online:2019-04-25 Published:2019-05-05
  • Supported by:
    The National Natural Science Foundation of China(U1736120);The National Natural Science Foundation of China(61572309);The National Natural Science Foundation of China(61525203);The National Natural Science Foundation of China(U1636206)

摘要:

随着区块链的发展,存储所有区块数据需要巨大的存储空间,而数据一旦写入链中就不能更改,可能会造成过期数据占用大量存储空间的问题。首先对门限环签名方案进行改进,然后基于空间证明的共识机制提出了可删除的区块链。当某个区块数据过期或失效时,经大多数节点同意并签名后,可对该区块进行有效删除,并保持区块链的总体结构不变。在模拟环境中进行了仿真实验,结果表明,所提区块链方案在生成和删除区块时效率都很高,且不影响其他区块的存储和使用。

关键词: 区块链, 数据可删除, 门限环签名, 空间证明

Abstract:

With the development of blockchain,huge storage space is needed to store all of blockchain data.In addition,data can’t be changed once it is packaged into the chain,and it may be possible for overdue data to take up large storage space.Firstly,a threshold ring signature scheme was improved,and then a deletable blockchain scheme based on the mechanism of proof of space (PoSpace) consensus was constructed.Most of nodes could sign and delete a block together when block data was overdue,and the overall structure of the blockchain was unchanged.Several experiments in a simulated environment were executed,and the results show that the proposed blockchain scheme has high efficiency in generating and delegating a block.Meanwhile,the deletion of a block doesn’t influence the storage and use of other blocks.

Key words: blockchain, data deletable, threshold ring signature, proof of space

中图分类号: 

  • TP309