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Computer Engineering ›› 2018, Vol. 44 ›› Issue (10): 1-5. doi: 10.19678/j.issn.1000-3428.0048451

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Data Outsourcing and Sharing Scheme Based on Vector Commitment and Proxy Re-encryption

WU Xinghua,ZHANG Aixin,LI Jianhua   

  1. School of Cyber Security,Shanghai Jiaotong University,Shanghai 200240,China
  • Received:2017-08-24 Online:2018-10-15 Published:2018-10-15
  • Supported by:

    吴兴华(1993—),男,硕士研究生,主研方向为信息安全、密码学;张爱新,副教授、博士;李建华,教授、博士。

基于向量承诺与代理重加密的数据外包及分享方案

吴兴华,张爱新,李建华   

  1. 上海交通大学 网络空间安全学院,上海 200240
  • 基金资助:

    国家重点研发计划“网络空间安全”重点专项(2017YFB0802100)

Abstract:

In order to guarantee the integrity,confidentiality and accessibility of outsourcing data,a secure data outsourcing and sharing scheme is proposed based on the vector commitment primitive and the proxy re-encryption technology.By introducing a digital signature of the commitment value,any third party can verify the integrity of the outsourcing data without the data owner and service provider being fully trusted,and the data owner can perform efficient execution of the outsourcing data adding,deleting,modifing,and accessing authorization actions.Performance and safety analysis results show the feasibility of the scheme.

Key words: data outsourcing, data sharing, bilinear mapping, vector commitment, proxy re-encryption

摘要:

为保障外包数据的完整性、机密性以及可访问性,在向量承诺原语基础上,结合代理重加密技术,提出一种安全的数据外包及分享方案。通过引入对承诺值的数字签名,使得任意第三方可以在数据拥有者和服务提供商均不完全可信的情况下,对外包数据的完整性进行校验,数据拥有者可以对外包数据执行高效的添加、删除、修改和访问授权操作。性能及安全性分析结果表明了该方案的可行性。

关键词: 数据外包, 数据分享, 双线性映射, 向量承诺, 代理重加密

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