Sensing cloud trust evaluation method and system based on edge mobile nodes

Abstract

The invention discloses a sensing cloud trust evaluation method and system based on edge mobile nodes. In the sensing cloud credibility evaluation method based on edge computing, the mobility and thecomputing power of the edge nodes are fully utilized; trust information (such as energy, successful interaction times and failed interaction times) of sensor nodes in a specified range is collected through a mobile edge node; and then, the trust degree of a trust chain between the main body node and the target node is calculated by utilizing the collected trust information, a trust result and an evaluation result are uploaded to an edge layer for trust updating and storage so as to be reused, and the evaluation result can further participate in trust decision making under the condition of cloud layer requirements. According to the method, the edge mobile node is used for collecting trust information of the sensor and calculating the trust degree of the trust chain between the main body node and the target node, untrusted nodes are filtered, the safety of sensing data in the transmission process is ensured, malicious attacks are prevented, and the safety of sensing cloud is improved.

Description

technical field [0001] The invention relates to the field of trust assessment in sensor cloud systems, in particular to a sensor cloud trust assessment method and system based on edge mobile nodes. Background technique [0002] As a new type of computer network, Wireless Sensor Network (WSN) expands the way of information acquisition, connects objective physical information with transmission network, provides people with more direct and effective real information, and gradually applies to national defense Military, environmental monitoring, urban management, biomedicine, smart home and many other fields have very broad application prospects, and have attracted great attention from the military, industrial and academic circles in the world. However, due to the distribution of sensor nodes in various special environments and their own limited resources, including limited power supply energy, limited computing power, limited storage capacity and limited communication capacity, ...

AI Technical Summary

Problems solved by technology

Second, the cloud computing model lacks direct management of the underlying sensor nodes and data, resulting in the inability to guarantee the credibility and reliability of the data, etc.

Images