Ethernet data encryption and decryption processing method based on national cryptographic algorithm

Abstract

The invention discloses an Ethernet data encryption and decryption processing method based on a national cryptographic algorithm. An encryption and decryption algorithm used in a system in MACSec and / or 802.1 X is replaced with the national cryptographic algorithm; an SM2 national cipher or higher-level asymmetric algorithm is adopted as an algorithm for protecting the symmetric cipher in key interaction so as to ensure that the symmetric cipher is not illegally acquired in the transmission process, and an SM4 or SM9 or higher-level national cipher encryption and decryption algorithm is adopted as an encryption and decryption algorithm in data transmission so as to ensure that sensitive data is not illegally read. Compared with an encryption and decryption algorithm dominated by European and American countries, the method is controllable in industry security, gets rid of excessive dependence on foreign technologies and products, and provides an effective solution for constructing an autonomous controllable network security environment.

Description

technical field [0001] The invention relates to the technical field of communication security, and more specifically relates to a method for encrypting and decrypting Ethernet data based on a national secret algorithm. Background technique [0002] With the rapid development of network communication technology, its application field has gradually penetrated into all aspects of social life, and affects and changes people's production and life style. However, while the computer network facilitates people's lives, it also brings some problems, such as data security. Data leakage can occur anywhere on the network, such as data being intercepted by unauthorized sniffing links. [0003] A typical method of protecting information is to encrypt data when it is transmitted in the network. In case the data is intercepted by an unauthorized sniffing link, the encrypted data can ensure that the data cannot be read. At the same time, data must also be authorized to ensure integrity. Th...

AI Technical Summary

Problems solved by technology

However, MACSec adopts encryption and decryption algorithms dominated by countries such as Europe and the United States. It does not have enough control over industry security and relies too much on foreign technology and products, which is not conducive to the establishment of an independent and controllable network security environment.

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