Secured communicating method and device for hiding talking voice

Abstract

The main feature of the invention includes following points: after called party responses the calling party, the both parties firstly initialize the logical connection and negotiates parameters required by security communication containing voice name, frequency domain algorithm and compression algorithm of voice in security transmission; the calling party transmits the security-transmitted voice that is hidden in the voice in public transmission; when the public-transmitted voice reaches the called party, the security-transmitted voice is restored and transmitted to the called party.

Description

Technical field [0001] The invention relates to the field of information security. More specifically, it relates to a secure communication method and device capable of hiding the voice of a call. Background technique [0002] Telephones have been widely used all over the world, and using public communication networks for voice communication has become a very common way of communication in people's daily lives. With the continuous expansion of the public communication network, more and more people are considering its security, such as the communication requirements for confidential information within the government or the military, and the requirements for confidential communication for personal privacy. [0003] The Chinese Patent Publication No. CN 1549490 is the application case. The principle of the invention is that the communication parties perform mutual identity authentication and secure key exchange before the call to realize the confidential transmission of the voice sig...

AI Technical Summary

Problems solved by technology

This method can solve the problems of replay attack, voice imitation attack and denial behavior after communication, but the voice stre

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