信息网络安全 ›› 2016, Vol. 16 ›› Issue (12): 46-50.doi: 10.3969/j.issn.1671-1122.2016.12.007

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适用于PHR系统的混合属性加密签名方案

陈飞(), 司一帆, 韩益亮   

  1. 武警工程大学,陕西西安710086
  • 收稿日期:2016-10-15 出版日期:2016-12-20 发布日期:2020-05-13
  • 作者简介:

    作者简介: 陈飞(1992—),男,安徽,硕士研究生,主要研究方向为应用密码学;司一帆(1992—),男,江苏,硕士研究生,主要研究方向为信息隐藏;韩益亮(1977—),男,甘肃,教授,博士,主要研究方向为密码学。

  • 基金资助:
    国家自然科学基金[61572521,61272492];陕西省自然科学基础研究计划项目[2015JM6353]

Hybird Attribute-based Encryption Signature Scheme for PHR System

Fei CHEN(), Yifan Si, Yiliang HAN   

  1. Engineering University of Chinese Armed Police Force, Xi’an Shaanxi710086,China
  • Received:2016-10-15 Online:2016-12-20 Published:2020-05-13

摘要:

PHR系统可以用于个人身体健康信息的交互,但信息的存储往往需要一个第三方服务器,这给用户的隐私信息安全带来了隐患。同时,现有PHR系统仅考虑到服务器的存储优势,并没有考虑到其计算优势。为了有效保护用户个人隐私,提高用户计算效率,文章提出了一个密文策略的外包混合属性加密签名方案,方案结合属性签名隐私保护以及属性加密访问控制的功能,为消息提供机密性、不可伪造性和匿名性,其密钥生成代价小于属性签名与属性加密的简单组合。该方案将接收方大部分的存储和验证以及解密算法中所有的双线性对运算交由云服务器执行,用户只需执行指数运算,有效地节约了用户本地资源。

关键词: PHR系统, 混合属性加密签名, 隐私保护, 外包计算

Abstract:

Personal Health Records could be used in health information exchange, but the storge of information is rely on third servicer, this may lead to the exposure of user’s privacy. And the technology of PHR only considers the service of storge, but, servicer also could provide the outsourced computation. In order to address the security and protect personal privacy, improve the efficiency of users, a ciphertext policy attribute-based hybrid encryption/signature scheme is proposed. Scheme combines the privacy protecting of attribute-based signature and access control of attribute-based encryption, provides the confidentiality, unforgeability and anonymity for message. The cost of key generation is more little than the simply combine of attribute-based signature and attribute-based encryption. The bilinear maps in recipient is outsourced to servicer, user only needs to finish exponent algorithm, so, user’s local resource is saved.

Key words: personal health records system, hybrid attribute-based encryption signature, protect privacy, outsourced computation

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