计算机科学 ›› 2017, Vol. 44 ›› Issue (9): 162-167.doi: 10.11896/j.issn.1002-137X.2017.09.031
陈燕俐,张乾,许建,王梦涵
CHEN Yan-li, ZHANG Qian, XU Jian and WANG Meng-han
摘要： 针对无线传感器网络多应用场景下异构数据的安全融合问题,提出了一种轻量级的安全数据融合保护方案,该方案可同时保障数据的隐私性、完整性和新鲜性。首先,以当前融合轮数和节点预置密钥作为哈希函数的输入,为节点更新每个融合周期的密钥;其次,采用同态加密技术,使中间节点能够对密文直接执行融合操作;然后,采用同态消息认证码,使基站能够验证融合数据在传输过程中是否被篡改;进一步,对明文信息采用编码机制,以满足多应用场景下异构数据聚集的使用需求。理论分析和仿真结果表明,该算法具有较好的安全性、较低的通信开销和更高的融合精确度。
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