《计算机应用研究》|Application Research of Computers

基于IC协议的分块加密方案及其应用

Block encryption scheme based on IC protocol and its application

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作者 许盛伟,赵海
机构 1.北京电子科技学院 信息安全研究所,北京 100070;2.西安电子科技大学 通信工程学院,西安 710071
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文章编号 1001-3695(2019)05-051-1524-05
DOI 10.19734/j.issn.1001-3695.2017.11.0757
摘要 快递面单泄密问题在给个人带来安全隐患的同时,也制约着快递企业的快速发展。针对快递面单隐私保护进行了研究。将基于身份的加密体制(BF-IBE)、权限设计思想及二维码技术相结合,设计了一种分块加密方案,采用一种新的用户私钥分发协议(IC协议)来解决密钥管理问题。将分块加密方案应用于快递隐私保护领域,设计了新型隐私面单与快递业务流程。结果分析表明,分块加密方案所采用的IC协议无须求逆运算,双线性对运算有效降低,便于密钥管理。在加/解密效率上分块加密方案与BF-IBE相当,安全性基于椭圆曲线上的离散对数问题,应用于快递领域能有效保护用户隐私,可推广至其他有分块加密需求的领域。
关键词 快递面单; 隐私保护; 基于身份的加密; 分块加密方案; 密钥管理
基金项目 国家“十二五”密码发展基金项目
本文URL http://www.arocmag.com/article/01-2019-05-051.html
英文标题 Block encryption scheme based on IC protocol and its application
作者英文名 Xu Shengwei, Zhao Hai
机构英文名 1.Research Institute of Information Security,Beijing Electronic Science & Technology Institute,Beijing 100070,China;2.School of Communication Engineering,Xidian University,Xi'an 710071,China
英文摘要 The problem of leaking through express sheet brings security risks to individuals, but also restricts the rapid development of express enterprises. This paper studied the privacy protection of express sheet. By combining the identity based encryption system(BF-IBE), the idea of authority design and the two-dimensional code technology, this paper designed a block encryption scheme. The scheme used a new private key distribution protocol(IC protocol) to solve the key management problem. This paper applied the block encryption scheme to the domain of express privacy protection, and designed a new privacy express sheet and express business process. The results show that the IC protocol uses in the block encryption scheme needs no inverse operation, and the bilinear pairings can be effectively reduced and the key management can be carried out easily. The encryption and decryption efficiency of the block encryption scheme is similar to that of BF-IBE. Its security is based on the discrete logarithm problem on elliptic curves. It can be applied to express field, which can effectively protect the user's privacy. It is also suitable for other areas with block encryption requirements.
英文关键词 express sheet; privacy protection; identity based encryption; block encryption scheme; key management
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收稿日期 2017/11/26
修回日期 2018/1/15
页码 1524-1528
中图分类号 TP309.7
文献标志码 A