电力物联网设备持续高效批量可信认证

Continuous and Efficient Batch Trusted Certification of Power Internet of Things Equipment

随着电力物联网的设备种类越来越多,运行环境也越来越复杂,为确保设备的安全可信运行,本文考虑到电力物联网云边端协同的架构,提出了一种设备持续高效批量可信认证机制。该机制采用一棵非平衡哈希树存储设备度量信息,用一个多链和哈希表结构快速寻找树达到存储上限时的待替换节点。该机制存储了设备的多版本度量信息,可以对设备进行持续性的可信度量认证,在认证时采用了一种高效的稀疏哈希树多值认证方法,实现了设备度量信息的批量认证。本文实现了系统原型。实验结果表明,多值认证在认证所需信息的生成和验证占用空间大小方面比单值认证更优。

The operating environment is more and more complex with the increasing types of equipment in the power Internet of Things.This paper proposes a continuous and efficient batch trusted authentication mechanism for equipment to ensure the safe and reliable operation of equipment,considering the cloud side cooperation architecture of power Internet of Things.The mechanism uses an unbalanced hash tree to store the device measurement information,and uses a multi chain and a hash table to quickly find the node to be replaced when the tree reaches the upper limit of storage.The mechanism stores the multi version measurement information of the device,which can continuously authenticate the device with trusted measurement.An efficient multi value proof method based on sparse hash tree is used to realize the batch authentication of the device measurement information.This paper implements the system prototype.The experiments show that the multi value authentication is better than the single value authentication in the generation,verification and space occupation of the information needed for authentication.