支持加密搜索的定向息票安全投放框架

发布时间：2019-06-25 18:10

【摘要】：针对移动终端息票定向投放服务中的隐私安全问题,提出一种支持加密搜索的定向息票安全投放框架。该框架根据息票定向投放过程中不同阶段的安全需求,通过使用多密钥可搜索加密技术实现移动终端用户只需要提交单个加密请求,就能在息票平台中对来自不同商家的加密息票进行安全高效的搜索,降低了系统的通信开销;同时结合局部敏感哈希技术和口令认证密钥交换协议,保证只有行为数据满足商家息票投放策略的移动用户才能获得息票,保护了移动终端用户的行为数据隐私和商家的息票投放策略。理论分析证明了该框架的安全性。实验结果表明,移动用户使用该框架获取10个商家的息票时所需计算时间为57.8ms,带宽为2.9KiB,能耗为8.7J。所提框架在息票定向投放服务的安全性和性能方面取得了很好的平衡,适合在移动终端上使用,对设计安全、实用的定向投放应用具有一定的理论和实际意义。
[Abstract]:In order to solve the problem of privacy and security in the directional delivery service of mobile terminal coupon, a secure delivery framework of directed coupon supporting encrypted search is proposed. According to the security requirements of different stages in the process of coupon delivery, the framework can search the encrypted coupon from different merchants safely and efficiently in the coupon platform by using multi-key searchable encryption technology to realize that the mobile end user only needs to submit a single encryption request, which reduces the communication overhead of the system. At the same time, combined with local sensitive hash technology and password authentication key exchange protocol, it ensures that only mobile users whose behavior data meet the merchant coupon delivery strategy can obtain coupon tickets, which protects the privacy of mobile end users' behavior data and merchants' coupon delivery strategy. The security of the framework is proved by theoretical analysis. The experimental results show that the computing time, bandwidth and energy consumption of mobile users using the framework to obtain coupons of 10 merchants are 57.8 Ms, 2.9 Kibb and 8.7J, respectively. the experimental results show that the calculation time is 57.8 Ms, the bandwidth is 2.9 KiB and the energy consumption is 8.7 J. The proposed framework has achieved a good balance in the security and performance of coupon oriented delivery service, which is suitable for use in mobile terminals, and has certain theoretical and practical significance for the design of safe and practical targeted delivery application.
【作者单位】：西安交通大学电子与信息工程学院;香港城市大学计算机科学系;香港城市大学深圳研究院;兰州交通大学光电技术与智能控制教育部重点实验室;
【基金】：国家自然科学基金资助项目(61472316,61572412) 陕西省科技计划资助项目(2016ZDJC-05) 中央高校基本科研业务费专项资金资助项目(XKJC2014008) 兰州交通大学光电技术与智能控制教育部重点实验室开放课题资助项目(KFKT2016-7)
【分类号】：TP309

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