Abstract
In the Internet of Things (IoT), many devices can communicate with each other directly through the Internet, and there are already good applications in transportation systems, smart meters, and smart home appliances. Wireless sensor networks are used in these Internet of things applications. Playing a vital role, the upload of data requires multiple layers of transmission to reach the cloud. In the industrial control field, many IoT devices upload data to the cloud for storage, but the upload process is easily tampered with, and centralized cloud services also have security concerns. In addition, in the local IoT perception layer among them, the security of sensor identity verification is also very important for message transmission. The main reason why the past blockchain technology could not be widely used in industrial control and other application fields is the cost considerations, because the procedures for running blockchain nodes and uploading transactions are too expensive. Therefore, this paper proposes an IoT architecture based on the IOTA Tangle network to solve the centralization problem of IoT storage in the cloud, and uses the method of MAM (Masked Authenticated Message) to trace the information of WSNs, while achieving data security and data preservation. In the edge devices of WSNs, because of the insufficient memory and computing performance of many devices, it is impossible to perform proof of work calculations. Therefore, this paper uses the logical key hierarchy-based method to manage the sensors, and applies symmetric and asymmetric encryption in blockchain. The identity verification of the device can be effectively achieved, and the operating cost can be effectively reduced.
Highlights
WSNs (Wireless Sensor Networks) are a network system composed of one or several wireless data collectors and numerous sensors
This article proposes a WSNs security architecture based on the IOTA Tangle, which uses a lightweight identity authentication solution to solve the problem of secure transmission between the sensor and the IOTA Tangle network, to establish a whitelist and blacklist mechanism to effectively control the identities of sensors and cluster heads
Because IOTA’s ledger is based on a Directed Acyclic Graph (DAG) and uses a lightweight POW method, the upload speed of data is much faster than the distributed ledger technology using blockchain
Summary
WSNs (Wireless Sensor Networks) are a network system composed of one or several wireless data collectors and numerous sensors. A wireless sensor network may consist of tens to hundreds or even thousands of sensor nodes These nodes are scattered in large areas and are responsible for collecting data on the surrounding environment. Due to the hardware limitations of these sensor nodes, the sensor nodes have only low computing power, low storage capacity, and low communication bandwidth They are suitable for a lightweight identity authentication mechanism. Considering the cost of building a high-computing host and the security of the data upload process, the second architecture is more suitable for building a wireless sensor network. It still has a centralized host, which requires a lightweight identity authentication scheme to establish secure transmission. This article proposes a WSNs security architecture based on the IOTA Tangle, which uses a lightweight identity authentication solution to solve the problem of secure transmission between the sensor and the IOTA Tangle network, to establish a whitelist and blacklist mechanism to effectively control the identities of sensors and cluster heads
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