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A data communication method and device

A data communication and communication key technology, applied in the field of data communication, can solve the problems of low encryption strength and poor encryption flexibility, and achieve the effect of improving encryption strength and enhancing encryption flexibility

Active Publication Date: 2019-01-04
北京明朝万达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a data communication method and device to solve the problems of low encryption strength and poor encryption flexibility existing in the prior art when encrypting communication data

Method used

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  • A data communication method and device
  • A data communication method and device
  • A data communication method and device

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Embodiment Construction

[0034] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] refer to figure 2 , shows a flow chart of the steps of an embodiment of a data communication method of the present invention, which is applied to a mobile terminal, and the mobile terminal is installed with an encryption card, so when using the application program installed on the mobile terminal to perform data communication with the server , the method may specifically include the following three processes: a public key exchange process, a key agreement process, and a hierarchical encryption communication process.

[0036] Among them, the process of exchanging public keys is realized by the following steps 101 to 103:

[0037] Step 101, sending an identity authentication request to the server;

[0038] Wherein, the ide...

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Abstract

The invention provides a data communication method and device. The method comprises the following steps: transmitting an identity authentication request to a server, wherein the identity authentication request comprises user public key information; receiving authentication response information of the identity authentication request, wherein the authentication response information comprises server public key information; conserving the server public key information; transmitting a key negotiation request to the server, wherein the key negotiation request comprises user encryption information; receiving negotiation response information of the key negotiation request, wherein the negotiation response information comprises encryption information of a communication key; determining the communication key according to the negotiation response information; generating a variety of levels of encryption ways in accordance with a preset encryption strategy; selecting the encryption way of a target level according to the security level of business data; and using the encryption way of the target level to encrypt the business data and transmitting the target level and the encrypted business data to the server. The data communication method provided by the invention can improve the encryption strength and the encryption flexibility.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a data communication method and device. Background technique [0002] The era of mobile Internet has made the relationship between human beings and information closer. Today, people need to transmit information through the mobile Internet every moment in their daily life, work, and entertainment. Under the mobile Internet industry chain, the importance of mobile smart terminals has become increasingly prominent and indispensable. Smart mobile terminals are not only tools for socializing, communication, and entertainment, but also participate in people's work. Various office software, government software, and law enforcement software are becoming more and more popular. At the same time, there are also potential security risks in the information transmission using mobile smart terminals under the mobile Internet. The key factor of software product quality. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/08H04L9/32
CPCH04L9/0838H04L9/3247H04L63/0428H04L63/06H04L63/205
Inventor 龚升俊王志海喻波王志华秦凯
Owner 北京明朝万达科技股份有限公司
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