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Data ciphering and deciphering communication terminal

A technology for data encryption and communication terminals, which is applied in secure communication, secure communication devices, digital transmission systems, etc., to achieve the effects of high encryption strength, variable replacement frequency, and reduced artificial loss of confidentiality

Inactive Publication Date: 2009-03-25
北京大秦兴宇电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can effectively overcome the defects of existing encryption and decryption terminals

Method used

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  • Data ciphering and deciphering communication terminal
  • Data ciphering and deciphering communication terminal
  • Data ciphering and deciphering communication terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] refer to figure 1 and Figure 6 When a communication terminal with an encryption and decryption module transmits encrypted voice, the modem at the local end and the opposite end establish a conversation path on the telephone network (PSTN network), and then the voice input and output device collects the user voice information and transmits it to the voice processing unit. The processing unit compresses the information through the voice compression and decompression chip, and transmits the compressed voice information to the encryption and decryption module, which encrypts and formats the information. The encryption and decryption module transmits the information to the modem, and the modem transmits the information to the peer modem through the established session path, and the peer modem transmits the information to the peer encryption and decryption module, and the peer encryption and decryption module formats the information Conversion and decryption processing. Th...

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Abstract

The invention discloses an encryption / decryption communication terminal which belongs to the field of communication equipment. The terminal comprises a holder and a transmitter / receiver handle (structure), wherein function keys are arranged on a panel of the holder; a function option key for selecting normal communication / secret communication is further arranged on the panel of the holder; a normal telephone communication circuit and a privacy telephone communication circuit which performs data encryption / decryption based on an encryption / decryption module are arranged inside the terminal; the secret telephone communication circuit is composed of a digital communication terminal and a data encryption / decryption module, wherein, the data communication terminal comprises a voice compressing / decompressing chip and a modem, and the data encryption / decryption module is composed of a middle controlling unit (MCU) and an encryption / decryption chip which is based on the reconfiguration logical technology. The terminal can provide the encrypted speech transmission for users, and further provide the encrypted data transmission of information, such as key assignment, character input, images and the like; optionally, the normal telephone communication circuit and the corresponding structure thereof can be exclusive.

Description

technical field [0001] The invention belongs to the field of communication equipment, in particular to a communication terminal with an encryption and decryption data transmission module. Background technique [0002] Today, communication networks pervade every corner of the world, literally becoming the "nervous system" of society. Every moment, countless political, military, economic, technological, cultural, life and other information in human society are transmitted between various communication terminals. The popularity of communication terminals has directly become the benchmark of the country's informatization level. It is precisely because of the explosive development of information technology that social efficiency has increased to an unprecedented level. However, people are often intoxicated by the huge benefits brought by information technology and ignore its potential harm. The struggle between the safe transmission of information and the theft of information r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K1/00H04L9/00
Inventor 吴义章黄强尹森吴庭钦
Owner 北京大秦兴宇电子有限公司
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