Software-defined Internet of Things network topology data transmission security management method and system

Abstract

The invention provides a software-defined Internet of Things network topology data transmission security management method and system, and the method comprises the steps: deploying common nodes and aggregation nodes at Internet of Things network nodes, and enabling the nodes to communicate with each other; performing encryption algorithm configuration on common nodes and aggregation nodes; each adjacent node performing bidirectional identity authentication and key agreement, and each node recording credible nodes passing authentication around itself and suspicious nodes failing to be authenticated; periodically executing topology discovery, collecting topology information of common nodes by the aggregation nodes, forwarding messages of trusted nodes among the aggregation nodes, establishing a trusted path, and constructing a global topology view; sequentially forwarding and aggregating the topology state messages according to the determined trusted path; and determining newly added nodes and malicious nodes based on the global topology view, broadcasting, and updating the network topology structure of the Internet of Things. According to the invention, the security and reliabilityof data transmission can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of network topology security management, and in particular relates to a software-defined Internet of Things network topology data transmission security management method and system. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the Internet of Things has been widely used in smart grid, smart home, industrial control, environmental monitoring and other fields. However, with the large-scale construction of the Internet of Things, how to safely and effectively manage a wide variety of IoT terminals and huge data traffic is a major problem facing the Internet of Things. Software Defined Internet of Things (SDIoT) is the application of software defined networking (Software Defined Networking, SDN) technology to the Internet of Things (Internet of Things, IoT) fie...

AI Technical Summary

Problems solved by technology

However, symmetric cryptography mainly faces scalability problems in Internet of Things applications: when a key is used in the entire network, once the key is leaked, it will cause huge damage to the entire network; when a key is distributed between any two terminals , the larger the network scale, the greater the key storage overhead, and new terminals need to add keys to all terminals; when using a probabilistic algorithm to generate keys between terminals, there is no guarantee that new terminals will be able to join the network

However, the generation, storage, verification, and revocation of digital certificates require huge bandwidth and computing overhead, which is not suitable for IoT terminal devices with limited resources.

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