Internet of Things environment encryption method and device

Abstract

The invention provides an Internet of Things environment encryption method. The Internet of Things environment encryption method comprises the following steps: S1, acquiring plaintext information andencryption parameters carried by the plaintext information; wherein the encryption parameters comprise the key length, the size of an encrypted data block, an operation constant factor and the total encryption number; S2, setting encryption times and initially setting the encryption times as 1; S3, judging whether the current encryption frequency is less than or equal to the total encryption number; s4, if yes, based on a plurality of parameter values except the total encryption number in the encryption parameters, combining the current encryption number and the encrypted plaintext informationto obtain an encryption matrix, and after the encryption matrix is updated into the plaintext information and one is added to the current encryption number, returning to the step S3; and S5, if not,outputting the encrypted matrix obtained at the last time as a ciphertext. The implementation of the invention is suitable for the condition of insufficient Internet of Things calculation and communication resources, and solves the problems of too high expenditure and poor dynamic adaptability of an encryption scheme in the prior art.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to an encryption method and device for an Internet of Things environment. Background technique [0002] In the process of digital transformation of distribution network, the deployment of a large number of various sensors has promoted the wide application of Internet of Things technology. In the distribution network based on the Internet of Things technology, sensing, capturing, and measuring technologies such as radio frequency identification, two-dimensional codes, sensors, and built-in mobile communication modules can be used to collect and acquire information on power equipment, terminals, and operating environments anytime, anywhere. [0003] With the emergence of a large number of connected entities, the network traffic and storage capacity in the distribution network based on the Internet of Things technology also increase exponentially, which will bring challe...

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide an encryption method and device for the Internet of Things environment, which is suitable for the situation where the computing and communication resources of the Internet of Things are insufficient, and solves the problems of high overhead and poor dynamic adaptability of encryption schemes in the prior art. question

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