普适计算网络环境中的密钥预分配方案

普适计算使用大量无线传感器节点组成网络,如何保证通信安全是普适计算所面临的重大问题。提出一种普适计算环境中的三层二项式密钥预分配方案,它能够很好地完成两两簇头间密钥对的生成,同时满足对节点极小的能量损耗、极少的通信负载和存贮空间要求。该方案有效地解决了节点获取攻击问题,提高了网络恢复度;同时成功地解决了多项式密钥预分配方案中的"K-security"问题。

Key pre-distribution scheme for ubiquitous computing network

Using a lots of wireless sensor node to organize the ubiquitous computing network,how to make net transport securely is key problem of ubiquitous computing research.The paper proposes a new bivariate polynomial key pre-distribution scheme based on three-tier hierarchical network architecture,the new key management scheme is established pairwise key between any two cluster heads and is suitable for the limited battery power,memory storage,data processing capacity condition.The scheme not only successfully im...