Message sending method, message verification method, device and communication system

Abstract

The invention discloses a message sending method, a message verification method, a message sending device, a message verification device and a communication system, and belongs to the field of communication. The method comprises the steps that a sending end obtains to-be-sent target data, wherein the target data is to-be-sent data after a first piece of data is sent in a current sending period; the sending end obtains nodes corresponding to the target data from a hash chain according to the sending serial number of the target data in the current sending period, wherein the number of the nodesincluded in the hash chain is equal to the number of data allowed to be sent in the current sending period; the sending end performs hash operation on the target data and a node corresponding to the target data to obtain a first verification code, wherein the first verification code is used for verifying the target data by a receiving end; and the sending end sends a first message, wherein the first message comprises the target data, a node corresponding to the target data, the first verification code and a sending serial number of the target data. The message transmission efficiency can be improved.

Description

technical field [0001] The present application relates to the field of communication, and in particular to a method for sending information, a method and device for verifying information, and a communication system. Background technique [0002] With the continuous development of information technology, intelligent devices such as smart phones, smart TVs, smart speakers, and smart refrigerators are constantly pouring into people's lives, and people are increasingly feeling the convenience brought by intelligence. At the same time, more and more people are paying attention to the intelligentization of vehicles, and the study of intelligentization outside the vehicle is inseparable from the acquisition of environmental data outside the vehicle. [0003] For any vehicle, the vehicle can obtain the external environment data shared by other vehicles. When implementing, each vehicle can send the external environment data to the central server after collecting the external environm...

AI Technical Summary

Problems solved by technology

[0005] At present, the sharing of environmental data outside the vehicle relies on the central server. The process of vehicles obtaining data from the central server is affected by the network status, and there is a certain network delay.

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