A 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 present invention mainly relates to the basic communication field of a credible safety network, and particularly refers to a watermark jump communication method based on data packet interval. Background technique [0002] With the increasing popularity of computer networks, the continuous emergence of various new technologies and equipment allows people to access the Internet anytime, anywhere. While the Internet brings great convenience to people's life, work, and study, it also exposes users who access the Internet to more cyber attacks and threats than ever before. When the Internet was founded, it was designed with the idea of ​​openness and sharing, and basically did not consider the security of the network. As the core of Internet communication, the TCP / IP protocol suite mainly considered the reliability of network interconnection, and tried its best to transmit data. The lack of network attributes that identify the effective identity of the info...

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;

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