目前,主要通过研究密钥管理来保证无线传感器网络的安全。在基于密钥预分配的方案中,当前研究的热点是随机密钥预分配模型,但它面临一个潜在的挑战,即无法同时获取理想的网络安全连通性和网络抗毁性。为此,提出一种基于哈希密钥链的随机预分配方案,利用密码学的哈希函数提高方案的抗节点俘获能力,增强网络的安全性,且在与E-G方案同等网络连通概率下具有较小的存储消耗和通信消耗。 At present, the security of wireless sensor networks is mainly guaranteed by researching key management. In the scheme of key-based pre-allocation, the current research hotspot is the random key pre-allocation model, but it faces a potential challenge that it can not achieve the desired network security connectivity and network survivability at the same time. Therefore, we propose a hash key chain based random pre-allocation scheme, which uses the hash function of cryptography to improve the anti-node capture ability of the scheme and enhance the security of the scheme. It also has the same network connectivity probability as the EG scheme Smaller storage and communication consumption.