无线传感器网络轻量级数据加密机制设计

发布时间：2018-06-02 00:41

本文选题：无线传感器网络 + 轻量级数据加密机制　；参考：《计算机工程与科学》2017年04期

【摘要】：针对无线传感器网络处理能力、存储空间、能量等有限的特点,设计了轻量级数据加密机制。该机制对RC6算法进行了改进,添加了"对称层"运算,使改进后的RC6算法在运算工作量变化不大的情况下,硬件实现更加容易,硬件资源消耗更小。为进一步提高密文的安全性与数据加密强度,使用双密钥对明文进行两级加密,并引入了随机密钥管理机制,使网络节点每次加密时都能使用不同的密钥,提高了密钥的安全性。数据加密机制还使用了节点ID认证、带有身份标识的密钥池认证等多种安全认证机制来阻止非法节点的接入。实验基于低功耗Cortex-M3内核的控制芯片搭建无线传感器网络节点硬件平台,设计了通信协议,并在硬件平台上移植与实现了该机制。实验结果表明,该加密机制能够很好地在低功耗平台上运行。
[Abstract]:Aiming at the limited processing capacity, storage space and energy of wireless sensor networks, a lightweight data encryption mechanism is designed. The mechanism improves the RC6 algorithm and adds the "symmetric layer" operation, which makes the improved RC6 algorithm easier to implement and consume less hardware resources when the operation workload is not changed much. In order to further improve the security of ciphertext and the intensity of data encryption, the two-level encryption of plaintext is carried out with double keys, and a random key management mechanism is introduced, which enables network nodes to use different keys every time they encrypt. The security of the key is improved. The data encryption mechanism also uses a variety of security authentication mechanisms such as node ID authentication and key pool authentication with identity to prevent illegal nodes from accessing. The hardware platform of wireless sensor network node is built based on the control chip of low-power Cortex-M3 kernel. The communication protocol is designed, and the mechanism is transplanted and implemented on the hardware platform. Experimental results show that the encryption mechanism can work well on low power platform.
【作者单位】：桂林理工大学信息科学与工程学院;
【基金】：国家自然科学基金(61262075) 广西高等学校重大科研项目(ZD2014065) 广西信息科学实验中心经费项目(20130206)
【分类号】：TN929.5;TP212.9

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