Ultra-lightweight multi-signature data processing method and system, and Internet of Things platform

Abstract

The invention belongs to the technical field of data processing, and discloses an ultra-lightweight multi-signature data processing method and system and an Internet of Things platform. A management center of the Internet of Things generates a public and private key pair for an Internet of Things node. When the Internet of Things node signs, a message is divided into two parts to reduce the communication cost, a signature (rj, sj, cj) are generated and disclosed, and part of the message verifiers verify the legality of the signature firstly. If the signature is legal, the complete message is recovered. According to the invention, the calculation complexity of the node is reduced, and meanwhile, the communication cost between the nodes is reduced. According to the ultra-lightweight multi-signature method and system based on the SM2 algorithm, on the premise of ensuring the scheme security, the calculation overhead of the Internet of Things node is greatly reduced, and the signature rateof the Internet of Things node is improved. On the premise that the node stores a small amount of data, the message can be signed for multiple times, and multiple times of communication with a management center is not needed.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to an ultra-lightweight multi-signature data processing method, system, and Internet of Things platform. Background technique [0002] At present, the closest existing technology: With the rapid development of science and technology, platforms such as cloud computing and the Internet of Things provide a strong support platform for data storage and transmission, and provide more convenience for people's daily life. The new architecture has brought new challenges to data integrity, confidentiality, and availability, and data security and privacy issues have become highly concerned issues. [0003] In order to ensure the security and reliability of the data in the IoT nodes, usually the nodes will sign the message and then send the message and the signature together to the control center or other nodes. However, with the rapid development of the Internet of Things,...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing lightweight signature schemes have low security and are vulnerable to attacks

[0006] (2) Existing signature schemes often have a large number of interactions, and the computational complexity of nodes is relatively high, which cannot meet the application requirements of low latency and less interaction required in the Internet of Things environment

[0008] (1) The balance between security and efficiency has always been mutually restrictive. Generally speaking, the efficiency can be achieved by simplifying some cryptographic schemes, but the security of the scheme is reduced; so how to improve without reducing the security? Efficiency is a difficult point that the present invention will break through

[0009] (2) Due to the exponential increase of Internet of Things nodes, the existing bandwidth has become a bottleneck. The present invention seeks a method for reducing the interaction between nodes and the control center and compressing data without upgrading the bandwidth

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