In order to solve the problems of low transmission stability and increased packet loss rate caused by target encryption transmission in the current data security transmission of heterogeneous communication networks,this paper proposes a data security transmission method of heterogeneous communication networks based on transparent encryption.This method improves the stability of transmission through data preprocessing and pseudo-code generation,and designs multi-level transmission keys.On this basis,a data security transmission model of transparent and encrypted heterogeneous communication network is constructed,and two-way authentication is adopted to realize secure transmission.Through the transmission test of five channels of suspension pipe,the results show that the packet loss rate of data security transmission by this method is controlled below 5%,which shows that the data security transmission method combined with transparent encryption technology has higher efficiency and pertinence,and has better practical application value.
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