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An encryption communication method and device

A technology of encrypted communication and encryption algorithm, applied in electrical components, user identity/authority verification, transmission systems, etc., can solve communication security risks and other problems, achieve low cost, improve anti-sabotage ability, improve security and reliability Effect

Inactive Publication Date: 2007-10-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to propose an encrypted communication method and device to overcome the defects of the prior art that the communication key is fixed and the only hidden danger of communication security, and realize the dynamic change of communication during the communication process through the negotiation between the sending end and the receiving end Keys to improve the security and reliability of data communication

Method used

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  • An encryption communication method and device
  • An encryption communication method and device

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Embodiment Construction

[0058] The present invention is based on the fact that the sending end and the receiving end can negotiate to change the communication key during the communication process, and the generation of the communication key can also be generated by using a dynamic algorithm according to the negotiation between the sending end and the receiving end, so as to eliminate the communication encryption key in the prior art. Key fixed, unique communication security risks, improve communication security and ensure reliable transmission.

[0059] Please refer to FIG. 1 , which is a schematic flowchart of the encrypted communication method disclosed in the present invention. The present invention comprises following realization steps:

[0060] First of all, several communication keys need to be generated at the sending end and receiving end of the communication connection, including:

[0061] Step s110: storing the same communication codebook and a number of one-to-one corresponding encryption a...

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Abstract

The present invention discloses an encrypting communication method and device. The method includes the steps of: (1) generating certain of communication keys at the transmitting terminal and the receiving terminal; (2) the transmitting terminal consults with the receiving terminal of the communication key to confirm a key adopted for communication; (3) the transmitting terminal and the receiving terminal communicate according to the consulted key and go into step (2) to perform key replace when the predetermined condition of replacing communication key is satisfied and then communicate according to the replace communication key. The present invention solves the technology problem of communication safety because of the fixing and unique of the communication key, and the safety and reliability of the communication are improved by the replacing of the key in the communication process by the consulting between the transmitting terminal and the receiving terminal.

Description

technical field [0001] The invention relates to the technical field of encrypted communication, in particular to an encrypted communication method and device for dynamically changing a communication key during communication. Background technique [0002] With the rapid development of modern communication technology, means of threatening network security such as network hackers and network interception tools are also emerging. If the data in the communication network is intercepted by a third party through improper means and used illegally, it will cause immeasurable Loss. Therefore, how to realize the secure communication of the communication network has become a hot research topic nowadays. [0003] In order to realize the secure communication of the communication network, the general practice in the industry is to encrypt the communication data. Even if the third party intercepts the communication data through improper means, because the communication data has been encryp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L29/06
Inventor 李磐石
Owner HUAWEI TECH CO LTD
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