External information source encryption and anti-eavesdrop interference device for voice communication device

Abstract

The invention belongs to the technical field of communication security and safety and relates to an external information source encryption and anti-eavesdrop interference device for a voice communication device. According to the external information source encryption and anti-eavesdrop interference device for the voice communication device, external information source encryption type voice communication compatible with various voice communication devices is achieved, interference suppression is conducted on a microphone, serving as the communication device, arranged inside an interference noise releasing cavity of the interference device through the adoption of random voice interference, in this way, adapterization eavesdrop achieved through a communication device is prevented, and the security and secrecy of the voice communication device are comprehensively guaranteed when the voice communication device is used.

Description

technical field [0001] The invention belongs to the technical field of communication security and safety, and relates to a plug-in source encryption and anti-eavesdropping interference device for voice communication equipment. Background technique [0002] When making a call with wired, wireless communication and network communication tools such as mobile phones, landlines, walkie-talkies, and network communication, others can intercept and eavesdrop on the content of the call through various technical means. From the sources of information acquisition, it can be divided into three categories, including: The past communication information is obtained by wiretapping the terminal communication device, intercepting and wiretapping the information during the transmission of the communication channel, and stealing the information stored on the storage device of the communication service provider. At present, the existing solutions to prevent such eavesdropping are generally throu...

AI Technical Summary

Problems solved by technology

[0007] The invention uses an innovative technical solution to solve the problem of plug-in encrypted voice communication compatible with various voice communication equipment, and well handles encryption strength and restoration distortion, signal delay, communication equipment audio input interface impedance adaptation and call background In order to deal with issues such as audio processing, an encryption scheme combining high-strength symmetric and asymmetric encryption technologies is adopted from the source of voice signals, which can not only exchange symmetric keys safely, but also overcome the defects of low efficiency of asymmetric encryption algorithms. The anti-tampering algorithm of information mark verification such as Greek algorithm can reliably solve the problem of interception, eavesdropping and attack of voice signals in the process of communication equipment and channel transmission, and is compatible with the voice input interface characteristics and transmission channels of various voice communication equipment

[0009] The organic combination of the above two functions solves the problem of channel-independent external encrypted communication and equipment source interference and anti-eavesdropping, and comprehensively solves the problem of security and confidentiality in the use of voice communication equipment, blocking the existing external encryption Communication equipment cannot prevent others from eavesdropping through the device's own microphone, which facilitates the normal use of voice communication equipment, especially in the use of mobile communication equipment without worrying about the hidden danger of microphone eavesdropping, and can be normally on standby and in places that require confidentiality. confidential voice communication

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