Anti-attack data transmission method and device

Abstract

The invention discloses a method and device for anti-attack data transmission, which solves the problem that the prior art cannot solve the problem of anti-attack. This application obtains the communication protocol message to be transmitted; Anti-attack preprocessing is performed on the data on the information bit to generate processing information; the above processing information is stored in the extension bit of the above-mentioned communication protocol message in the above-mentioned message header, and the converted communication protocol message is obtained, wherein, The above-mentioned message header of the above-mentioned communication protocol message includes the above-mentioned information bits and the above-mentioned extension bits; the above-mentioned converted communication protocol message is sent to the receiving device; this application is applicable to the field of data attack defense.

Description

technical field [0001] The present invention relates to the field of data transmission, in particular to an attack prevention data transmission method and device. Background technique [0002] At present, in the existing technology, common communication attack methods include the following two types: [0003] 1. SYN attack, the attack principle is as follows: SYN attack is a kind of DOS attack, which uses the defect of TCP protocol and consumes CPU and memory resources by sending a large number of semi-connection requests. In addition to affecting hosts, SYN attacks can also harm network systems such as routers and firewalls. In fact, SYN attacks do not care what systems are targeted, as long as these systems enable TCP services. The server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), and enters the SYN_RECV state at this time. When the server does not receive the confi...

AI Technical Summary

Problems solved by technology

However, in the existing cleaning schemes, due to the different communication protocols, traffic cleaning is used to defend against attacks, which is likely to cause accidental damage, that is, to filter normal data traffic as attack traffic

For the above problems, no effective solution has been proposed