一种可指定密钥的端到端语音通信保密装置

End-to-end voice communication privacy device with assignable secret key

  • Inventors: LAN YUDONG
  • Assignees: 兰玉栋
  • Publication Date: April 09, 2014
  • Publication Number: CN-203537408-U

Abstract

The utility model is an end-to-end voice communication privacy device with an assignable secret key. The end-to-end voice communication privacy device comprises an encryption and decryption operation chip, a button, a display screen, A/D modules and D/A modules, the encryption and decryption operation chip receives the secret key inputted by the button and the secret key is stored in an internal memory, a voice sending terminal converts an analog voice signal to a digital signal via the A/D modules, the secret key inputted by the button is encrypted in a digital manner and converted to an analog signal via the D/A modules so that the device can be applicable to various voice communication systems employing analog voice signal input, a voice receiving terminal converts the received analog signal to the digital signal via the A/D modules, and the secret key which is the same as the key secret of the sending terminal is set to decrypt so that the voice communication privacy device can be guaranteed not to be used by a third party without authorization.
本实用新型为一种可指定密钥的端到端语音通信保密装置,由加密解密运算芯片、按键、显示屏、A/D模块和D/A模块组成。加密解密运算芯片接收按键输入的密钥并将其存入内部存储器中,语音发送端将模拟语音信号通过A/D模块转换为数字信号后,通过按键输入的密钥进行数字加密后再通过D/A模块转换为模拟信号,从而可适用于各种使用模拟语音信号输入的语音通信系统;语音接收端通过A/D模块将接收到的模拟信号转换为数字信号,且必须设定与发送端相同的密钥进行解密,从而确保语音通信保密装置无法被未经授权的第三方使用。

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