物联网中无可信权威中心的隐私保护数据聚合方案A Novel Privacy-Preserving Data Aggregation Scheme Without Trusted Authority in IoT
刘海辉;陈建伟;黄川;
摘要(Abstract):
针对物联网数据收集过程中的隐私保护问题,提出了一个无可信权威中心的隐私保护数据聚合方案.首先,在不依赖可信权威中心的前提下,终端设备之间利用密钥交换算法生成共享秘钥并构建加密密钥,保证上报数据的隐私性;其次,根据Carmichael定理设计了一种容错机制,当终端设备故障或者网络连接出错时,控制中心仍然可以对已接收数据进行聚合统计;此外,采用批量验证的方式保证上报数据的完整性.最后,理论分析证明了本文方案的正确性和安全性.性能实验表明,相比于已有方案,所需的计算开销较低,而为了具备容错能力和提升数字签名的验证效率,增加了部分通信开销.
关键词(KeyWords): 物联网;隐私保护;数据聚合;无可信权威中心;容错
基金项目(Foundation): 国家自然科学基金海峡联合基金重点项目(U1905211);; 福建省自然科学基金资助项目(2018J01782)
作者(Authors): 刘海辉;陈建伟;黄川;
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