CN1893474A - Method and apparatus for realizing voice enciphering in communication system - Google Patents
Method and apparatus for realizing voice enciphering in communication system Download PDFInfo
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- CN1893474A CN1893474A CN 200510082951 CN200510082951A CN1893474A CN 1893474 A CN1893474 A CN 1893474A CN 200510082951 CN200510082951 CN 200510082951 CN 200510082951 A CN200510082951 A CN 200510082951A CN 1893474 A CN1893474 A CN 1893474A
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Abstract
Main characters of the invention are that an encrypting and decrypting device is added to interface of the current communication terminal device in order to carry out encrypting or decrypting process for audio signal. Thus, the invention makes current communication network and device possesses function for transferring the encrypted voice. The invention raises use ratio of current equipment, and prevents action of monitoring communication effectively. User can select whether communication is encrypted or not freely. Features are: easy of use, and portable.
Description
Technical field
The present invention relates to a kind of method and apparatus of in communication system, realizing voice encryption, it is a kind of existing communication switch system (comprising fixed communication and mobile communication) of utilizing, support and realization voice encryption method for communicating and device, relate in particular to and realize that in the communications field encrypted speech system for transmitting constitutes and the realization technology.
Background technology
Along with the continuous development of the communication technology, not only require communication system to have characteristics such as quality height, multi-functional, reliability height, and the confidentiality of communication system is also proposed more and more higher requirement, the scope of coded communication extends to domestic consumer from the special user.The disguise that existing communication system provides, confidentiality and fail safe can't be satisfied the requirement of secret communication.For the landline telephone system, only need simply make contact just to reach the purpose of eavesdropping; Even the mobile communication system that confidentiality is higher is not encrypted voice yet, make mobile phone tapping device savage a period of time.
Because people some have occurred and have possessed the communication terminal of encrypted communication function the demand of encryption communication, such as scrambler phone and encryption mobile phone.But these equipment all are special-purpose communication terminals, have cost an arm and a leg, versatility is poor, bulky, shortcoming such as be inconvenient to carry.
Summary of the invention
The objective of the invention is to propose a kind of method that in communication system, realizes voice encryption, to satisfy people to the confidentiality of communication and the requirement of fail safe.Another object of the present invention provides a kind of device that is implemented in the communication system method that realizes voice encryption, with costing an arm and a leg of solving that prior art exists, versatility is poor, bulky, the problem of being inconvenient to carry.
To achieve these goals, the present invention takes following technical scheme:
A kind of method that realizes voice encryption in communication system may further comprise the steps:
(1) by transmitter just speech conversion be audio electrical signal A;
(2) described audio electrical signal A is carried out encryption, make it become encrypted audio signal of telecommunication B, and send into a communication terminal 1;
(3) the encrypted audio signal of telecommunication B of communication terminal 1 output is transferred to another communication terminal 2 by public communication network;
(4) the encrypted audio signal of telecommunication B to described communication terminal 2 outputs is decrypted processing, makes it become the audio electrical signal C that does not encrypt, and delivers to receiver;
(5) by receiver above-mentioned audio electrical signal C conversion is reduced to voice.
Described communication terminal 1 and 2 is analog communication terminal or digital communication terminal,
Described analog communication terminal and digital communication terminal are landline telephone or mobile phone.
A kind of device of realizing the method for above-mentioned voice encryption comprises encrypting-decrypting module and connected interface 1 and interface 2, wherein:
Interface 1 is connected with a communication terminal, is used for the mutual transmission of the encrypted audio signal of telecommunication B between this communication terminal and the encrypting-decrypting module;
Interface 2 is connected with transmitter/receiver, is used for that the audio electrical signal A that transmitter is exported is sent to encrypting-decrypting module and is decrypted processing, or the audio electrical signal C after the encrypting-decrypting module deciphering is delivered to receiver;
Encrypting-decrypting module is transferred to communication terminal after being used for the unencrypted signal of telecommunication A from interface 1 encrypted, and will be transferred to receiver after the coded signal deciphering from interface 2.
Described two interfaces 1 and 2 and encrypting-decrypting module between be connected with manual change-over switch, when this change over switch is in encrypted location, all signals will be carried out the processing of encrypt/decrypt, when this change over switch is handled the unencryped word position, all signals will not carry out the processing of encrypt/decrypt, directly carry out the transmission of unencryped word, so as with the general communication terminal compatibility of this device not.
Described encrypting-decrypting module is made up of the analog encryption chip, utilizes the mode of analog encryption, and analog signal is directly encrypted.
Described encrypting-decrypting module is made up of one group of modulus conversion chip, one group of analog-digital chip and set of number encryption chip, be digital signal with analog signal conversion earlier, then digital signal is encrypted, the digital signal after will encrypting at last is converted to analog signal and finishes ciphering process.
The realization of encryption system is on the basis of existing communication system, does not need to change switching equipment, utilizes existing communication terminal to realize.This method and apparatus can utilize public communication network and general communication terminal to realize the encrypted transmission of voice communication, prevents the eavesdropping in communication process effectively.
The invention has the beneficial effects as follows: only need on the interface of existing communication terminal equipment, add an encryption/decryption device, just can realize utilizing existing communication network and equipment to carry out the function of voice encryption transmission, improve the utilance of existing equipment, effectively prevented the behavior that communication is monitored.This method and apparatus is easy to use, volume is small and exquisite, be easy to carry about with one.And can with existing non-encryption-enabled devices compatibility, the user can freely select whether speech scrambling, and is very easy to use.
Device of the present invention is described in further detail with instantiation below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the formation block diagram of a device of the present invention;
Fig. 2 is the application schematic diagram of device of the present invention in telephone communication network.
Embodiment
Referring to Fig. 1 and Fig. 2, the device that carries out the voice encryption transmission by public communication network and general communication terminal of the present invention comprises: encrypting-decrypting module 4 and connected interface 1 and interface 2, wherein:
Interface 1: one with being connected of communication terminal, the encrypted audio signal of telecommunication of received communication terminal is transferred to encrypting-decrypting module, and receives the audio electrical signal of encrypting through encrypting-decrypting module and be transferred to communication terminal.
Interface 1 is connected with a communication terminal in use, and the unencrypted audio electrical signal that is used to receive from transmitter is transferred to encrypting-decrypting module, and reception is transferred to receiver from the audio electrical signal after the deciphering of encrypting-decrypting module.
Interface 2 is connected with transmitter/receiver in use, is used for that the audio electrical signal that transmitter is exported is sent to encrypting-decrypting module and is decrypted processing, or the audio electrical signal after the encrypting-decrypting module deciphering is delivered to receiver.
Encrypting-decrypting module will be transferred to communication terminal behind the unencryption signal encryption from transmitter, and will be transferred to receiver after the coded signal deciphering from communication terminal.
For with the general communication terminal compatibility of this device not, this device also can be provided with a manual change-over switch 3, when this change over switch is in encrypted location, all signals will be carried out the processing of encrypt/decrypt, when this change over switch is handled the unencryped word position, all signals will not carry out the processing of encrypt/decrypt, directly carry out the transmission of unencryped word.
Encrypting-decrypting module 4 of the present invention can be made up of the analog encryption chip, utilizes the mode of analog encryption, and analog signal is directly encrypted; Also can form by one group of modulus conversion chip, one group of analog-digital chip and set of number encryption chip, be digital signal with analog signal conversion earlier, then digital signal is encrypted, the digital signal after will encrypting at last is converted to analog signal and finishes ciphering process.
The application of a kind of external of device of the present invention as shown in Figure 3, two telephone sets 5 with 6 as communication terminal and be connected with telephone communication network 7 respectively.Encryption/decryption device A of the present invention and B are connected between the transmitter/receiver and main station of two telephone sets 5 and 6.Sound wave is converted to the audio electrical signal of simulation through the transmitter of telephone set 5, entering telephone set 5 by the analog signal after the encryption of encryption/decryption device A handles, be transferred to another telephone set 6 by telephone communication network 7 again, the signal of telephone set 6 outputs is decrypted through encryption/decryption device B, and the receiver that enters telephone set 6 then is converted to sound wave.Finish a process of communication.
Claims (7)
1. method that realizes voice encryption in communication system is characterized in that: may further comprise the steps:
(1) by transmitter just speech conversion be audio electrical signal A;
(2) described audio electrical signal A is carried out encryption, make it become encrypted audio signal of telecommunication B, and send into a communication terminal 1;
(3) the encrypted audio signal of telecommunication B of communication terminal 1 output is transferred to another communication terminal 2 by public communication network;
(4) the encrypted audio signal of telecommunication B to described communication terminal 2 outputs is decrypted processing, makes it become the audio electrical signal C that does not encrypt, and delivers to receiver;
(5) by receiver above-mentioned audio electrical signal C conversion is reduced to voice.
2. the method that realizes voice encryption in communication system according to claim 1 is characterized in that: described communication terminal 1 and 2 is analog communication terminal or digital communication terminal,
3. the method that realizes voice encryption in communication system according to claim 1, it is characterized in that: described analog communication terminal and digital communication terminal are landline telephone or mobile phone.
4. realize the described device of in communication system, realizing the method for voice encryption of claim 1～3 for one kind, it is characterized in that: comprise encrypting-decrypting module and connected interface 1 and interface 2, wherein:
Interface 1 is connected with a communication terminal in use, is used for the mutual transmission of the encrypted audio signal of telecommunication B between this communication terminal and the encrypting-decrypting module;
Interface 2 is connected with transmitter/receiver in use, is used for that the audio electrical signal A that transmitter is exported is sent to encrypting-decrypting module and is decrypted processing, or the audio electrical signal C after the encrypting-decrypting module deciphering is delivered to receiver;
Encrypting-decrypting module is transferred to communication terminal after being used for the unencrypted signal of telecommunication A from interface 1 encrypted, and will be transferred to receiver after the coded signal deciphering from interface 2.
5. device according to claim 4, it is characterized in that: described two interfaces 1 and 2 and encrypting-decrypting module between be connected with manual change-over switch, when this change over switch is in encrypted location, all signals will be carried out the processing of encrypt/decrypt, when this change over switch is handled the unencryped word position, all signals will not carry out the processing of encrypt/decrypt, directly carry out the transmission of unencryped word, so as with the general communication terminal compatibility of this device not.
6. device according to claim 4 is characterized in that: described encrypting-decrypting module is made up of the analog encryption chip, utilizes the mode of analog encryption, and analog signal is directly encrypted.
7. device according to claim 4, it is characterized in that: described encrypting-decrypting module is made up of one group of modulus conversion chip, one group of analog-digital chip and set of number encryption chip, be digital signal with analog signal conversion earlier, then digital signal is encrypted, the digital signal after will encrypting at last is converted to analog signal and finishes ciphering process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510082951 CN1893474A (en) | 2005-07-07 | 2005-07-07 | Method and apparatus for realizing voice enciphering in communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510082951 CN1893474A (en) | 2005-07-07 | 2005-07-07 | Method and apparatus for realizing voice enciphering in communication system |
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| CN1893474A true CN1893474A (en) | 2007-01-10 |
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| CN 200510082951 Pending CN1893474A (en) | 2005-07-07 | 2005-07-07 | Method and apparatus for realizing voice enciphering in communication system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996632B (en) * | 2009-08-10 | 2012-02-22 | 北京多思科技发展有限公司 | Chip, method and communication equipment for supporting voice coding encryption |
| CN102843677A (en) * | 2012-08-14 | 2012-12-26 | 福建伊时代信息科技股份有限公司 | Voice communication method, device and system |
| CN104581711A (en) * | 2014-12-22 | 2015-04-29 | 上海斐讯数据通信技术有限公司 | Mobile terminal with communication encryption function as well as communication encryption method thereof |
| CN104866253A (en) * | 2015-04-03 | 2015-08-26 | 珠海艾派克微电子有限公司 | Chip, method for chip to respond to imaging device, and imaging system |
| CN114953787A (en) * | 2021-11-12 | 2022-08-30 | 珠海艾派克微电子有限公司 | Chip, device and data transmission method |
-
2005
- 2005-07-07 CN CN 200510082951 patent/CN1893474A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996632B (en) * | 2009-08-10 | 2012-02-22 | 北京多思科技发展有限公司 | Chip, method and communication equipment for supporting voice coding encryption |
| CN102843677A (en) * | 2012-08-14 | 2012-12-26 | 福建伊时代信息科技股份有限公司 | Voice communication method, device and system |
| CN104581711A (en) * | 2014-12-22 | 2015-04-29 | 上海斐讯数据通信技术有限公司 | Mobile terminal with communication encryption function as well as communication encryption method thereof |
| CN104866253A (en) * | 2015-04-03 | 2015-08-26 | 珠海艾派克微电子有限公司 | Chip, method for chip to respond to imaging device, and imaging system |
| CN104866253B (en) * | 2015-04-03 | 2018-03-30 | 珠海艾派克微电子有限公司 | A kind of chip and its method, the imaging system for responding imaging device |
| CN114953787A (en) * | 2021-11-12 | 2022-08-30 | 珠海艾派克微电子有限公司 | Chip, device and data transmission method |
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Open date: 20070110 |