无线传感器网络基于分组协商的数字水印算法

无线传感器网络通常具有分布式数据采集与网内数据处理的特点，因此基于传统数字水印的安全技术难以直接用于传感器网络；针对传感器网络聚类分层的体系结构，通过在簇内建立分组协商机制来生成待嵌入水印，在此基础上实现了一种新的分布式数字水印算法。传感器节点以分组的形式嵌入水印，计算复杂度低，水印具有良好的抗攻击性和对有损压缩的鲁棒性。实验结果表明用该算法嵌入的水印可检测性强，能够成功地鉴别数据是否被非法篡改，保护传感器网络数据安全。

Group negotiation-based digital watermarking for wireless sensor network

Traditional digital watermarking cannot be applied directly in Wireless Sensor Network(WSN)that has special features,such as collecting data in distributed sub-clusters and processing data in-network.According to the hierarchical clustering architecture of WSN,a distributed consultative mechanism was established in clusters to generate the proper watermarking;thus,a distributed watermark algorithm was proposed.Sensor nodes of each group were embedded with watermarks with low computational complexity.The wat...