摘要
在无线传感器网络(WSNs)中,加密和认证机制只能预防外部攻击,对于内部攻击的防御,信任管理机制则是一种较好的方法。On-off攻击作为内部攻击的一种,由于其节点信誉值动态调整,具有更大的隐蔽性与攻击性。通过在BETA分布下采用差值判决与趋势分析方法,提出了一种有效抗On-off攻击的信任机制。仿真结果证明该机制能够很好的抵御On-off攻击,且易于实现。
Using encryption and authentication mechanisms can only prevent external attacks, but these mechanisms for internal attacks are invalid in Wireless Sensor Networks(WSNs). On-off attack also belongs to internal attacks, which has more concealment and aggressive, due to its reputation value dynamic changing. By using difference value and trend analysis based on BETA distribution, an effective trust mechanism was proposed to defend On-off attack. Simulation shows that this scheme can defend On-off attack, and be easy to implement.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2015年第11期2722-2728,共7页
Journal of System Simulation
基金
国家自然科学基金青年基金项目(61302113)
上海市自然科学基金项目(13ZR1440800)
上海市青年科技启明星计划(14QB1404400)
