Watermark hopping communication method based on data packet interval

Abstract

A watermark hopping communication method based on data packet interval comprises the following steps: (1) a watermark detector is deployed at a destination host end, a watermark embedding device is deployed at a source host end, and watermark hopping keys are allocated for legitimate hosts; (2) when a source host accesses a destination host, the watermark embedding device extracts network flow quintuple information and generates a network flow watermark according to a self-stored symmetric key and the current system time, the data packet interval distribution is adjusted through data packet sending delay, and the watermark information is embedded into a network flow and sent to the destination host; and (3) the destination host receives a network message, generates a network flow watermark according to a self-stored watermark hopping key, the current system time and the quintuple of the network flow, extracts the network flow watermark from the received network flow, compares the network flow watermark with the self-generated watermark, and identifies and controls the flow of the network message. The watermark hopping communication method of the invention has the advantages of simple implementation, flexible application, good secrecy, strong anti-jamming capability, and the like.

Description

technical field [0001] The invention mainly relates to the basic communication field of a trusted and safe network, in particular to a watermark jump communication method based on data packet intervals. Background technique [0002] With the increasing popularity of computer networks, the continuous emergence of various new technologies and devices enables people to access the Internet anytime and anywhere. While the Internet brings great convenience to people's life, work, and study, it also makes users who access the Internet suffer from more cyber attacks and threats than ever before. When the Internet was founded, it was designed based on the idea of ​​openness and sharing, and basically did not consider network security issues. As the core of Internet communication, the TCP / IP protocol family mainly considers the reliability of network interconnection and transmits data as much as possible. The communication data flow lacks the network attributes that identify the effe...

AI Technical Summary

Problems solved by technology

[0009] One is that it can only determine whether the watermark is embedded in the flow, but cannot determine which information source the network flow embedded with the watermark comes from;

Images