CN203537408U - End-to-end voice communication privacy device with assignable secret key - Google Patents
End-to-end voice communication privacy device with assignable secret key Download PDFInfo
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- CN203537408U CN203537408U CN201320242026.8U CN201320242026U CN203537408U CN 203537408 U CN203537408 U CN 203537408U CN 201320242026 U CN201320242026 U CN 201320242026U CN 203537408 U CN203537408 U CN 203537408U
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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.
Description
Affiliated technical field
The utility model relates to voice communication technology, relates in particular to a kind of end-to-end voice telecommunication privacy device of specifying key.
Background technology
At present, voice communication apparatus is widely used in each field of society, traditional voice communication apparatus consists of speech input output device and voice data processing system, voice signal is after input equipment and data handling system, analog input signal is converted to speech data, and speech data is delivered in the voice communication networks such as radio station, the Internet, mobile radio communication and transmits the most at last.But in transmitting procedure, speech data is easy to even by unwarranted Virtual network operator or mobile communication carrier, be obtained by third party, and end-to-end voice communication cannot be guaranteed safely.Especially in relating to the voice communication scene of the Sensitive Domains such as military affairs, national defence, public security, national economy, business forward position, in the urgent need to end-to-end voice communication privacy device, guarantee that voice communication information do not obtained by third party.
For end-to-end voice communication apparatus, early there is research both at home and abroad.As patent 86209022.9 discloses a kind of analog phonetic cryptographic coder, this encryption equipment can carry out end-to-end encryption to voice communication, but be encrypted and decipher because it adopts analog circuit mode, when deciphering, to the quality of voice signal, can affect greatly, and this technical scheme cannot arrange key, cannot guarantee that this device is obtained and uses by unwarranted third party.Patent 200920318316.X discloses a kind of device that sends encrypted voice based on GSM, but due to this cipher mode speech data for transmitting by gsm communication net only, therefore limitation is larger, and this device cannot specify and handover key, therefore cannot guarantee that this device is obtained and uses by unwarranted third party.Patent 200810134500.9 discloses a kind of mode of the cipher key index of transmitting by DTMF based on specific mobile terminal, extracting corresponding secret key provides the technical scheme of the voice encryption business in mobile network, but because this technical scheme is utilized mobile communication signal and is specified key, be only applicable to moving speech communication, and this does not encrypt key in transmitting procedure, easily in transmitting procedure, by third party, is obtained.
Summary of the invention
In order to overcome existing voice communication apparatus, be difficult to guarantee the deficiency that end to end communication is secret in various voice transfer networks, the utility model provides a kind of voice communication secret-keeping device, this voice communication secret-keeping device can be encrypted and decipher speech data, prevents that speech data from being obtained by third party in transmitting procedure; And this voice communication secret-keeping device can also specify the key of encryption and decryption, even if guarantee that this device is obtained also and cannot obtain without permission primary voice data by third party.
The utility model solves the technical scheme that its technical problem adopts: a kind of voice communication secret-keeping device, comprise the button and the display screen that are used to specify key, for speech data being encrypted to the encrypting and decrypting compute chip with decryption processing, the A/D modular converter and the D/A modular converter that for voice analog signal and digital signal, carry out conversion mutually.
Aforesaid voice communication secret-keeping device comprises button, and the I/O mouth of button and cryptographic calculation chip is connected, thereby person easy to use specifies the key of encryption and decryption.
Aforesaid voice communication secret-keeping device also comprises display screen, and display screen is connected with cryptographic calculation chip, thereby person easy to use checks the key information that input when encrypting and deciphering is set oneself on display screen.
Aforesaid voice communication secret-keeping device also comprises encrypting and decrypting compute chip, and the key that encrypting and decrypting compute chip arranges by user is used default algorithms for encryption and decryption that speech data is encrypted and is deciphered.
Aforesaid voice communication secret-keeping device also comprises A/D module, and A/D module is connected with encrypting and decrypting compute chip, and the analog voice signal of input is encrypted or is deciphered by encrypting and decrypting compute chip after being converted to digital signal.
Aforesaid voice communication secret-keeping device also comprises D/A module, and D/A module is connected with encrypting and decrypting compute chip, and the digital signal after being encrypted or deciphered by encrypting and decrypting compute chip is converted to analog voice signal.
Outstanding advantages of the present utility model is: the utility model is by being converted to digital signal at voice transmitting terminal by analog voice signal, key by appointment carries out being converted to analog signal after digital encryption again, thus the voice communication system of inputting applicable to various use analog voice signals; Simultaneously by specifying identical key to be decrypted at phonetic incepting end, thereby guarantee that voice communication secret-keeping device cannot be used by unwarranted third party.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
Fig. 1 shows a structural representation that embodiment provides of the present utility model.
In this embodiment, button 1 is connected with encrypting and decrypting compute chip 2, and user sets the key of encryption and decryption by button 1, encrypting and decrypting compute chip 2 by key storage in the internal storage of self.
Display screen 3 is connected with encrypting and decrypting compute chip 2, and encrypting and decrypting compute chip 2 is presented at key on display screen 3 at the key that receives button 1 input simultaneously, with person easy to use, examines and confirms.
When as voice communication transmitting terminal, from the voice analog signal of microphone input, through A/D module 4 sample conversion, be digital signal, A/D module 4 is connected with encrypting and decrypting compute chip 2 and audio digital signals is inputted to encrypting and decrypting compute chip 2, and encrypting and decrypting compute chip 2 is utilized and audio digital signals encoded and encrypt through key and the predefined cryptographic algorithm of key-press input.Encrypted voice digital signal is converted into the analog voice signal after encryption by the D/A module 5 being connected with encrypting and decrypting chip 2 again.Analog voice signal after encryption can be inputted voice traffic transmission system arbitrarily and send and transmit.
When as voice communication receiving terminal, from voice traffic transmission system acquisition arbitrarily to the analog voice signal encrypting, first through A/D module 7, be converted to the digital signal after encryption, A/D module 7 is connected with encrypting and decrypting compute chip 2 and by the digital signal input encrypting and decrypting compute chip 2 after conversion, the utilization of encrypting and decrypting compute chip is decoded to digital signal and deciphers through key and the predefined decipherment algorithm of key-press input.Voice digital signal through deciphering is converted to the analog signal after deciphering by the D/A module 6 being connected with encrypting and decrypting compute chip 2 again, the analog signal after deciphering can input loudspeaker or the received person of earphone listen to.
Above embodiment only, for the technical solution of the utility model is described, is not intended to limit, and only with reference to preferred embodiment, the utility model is had been described in detail.Those of ordinary skill in the art is to be understood that, the technical scheme that can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. can specify an end-to-end voice telecommunication privacy device for key, it is characterized in that being formed by encrypting and decrypting compute chip, button, display screen, A/D module and D/A module.
2. end-to-end voice telecommunication privacy device of specifying key according to claim 1, is characterized in that: button is connected with encrypting and decrypting compute chip, and encrypting and decrypting compute chip receives the key of key-press input and deposited in internal storage.
3. end-to-end voice telecommunication privacy device of specifying key according to claim 1, it is characterized in that: display screen is connected with encrypting and decrypting compute chip, and encrypting and decrypting compute chip is presented at key on display screen at the key that receives key-press input simultaneously.
4. end-to-end voice telecommunication privacy device of specifying key according to claim 1, it is characterized in that: when as voice communication transmitting terminal, the voice digital signal of A/D module collection is analog signal by D/A module converts after encrypting and decrypting compute chip is encrypted.
5. end-to-end voice telecommunication privacy device of specifying key according to claim 1, it is characterized in that: when as voice communication receiving terminal, the voice digital signal of A/D module collection is analog signal by D/A module converts after the deciphering of encrypting and decrypting compute chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320242026.8U CN203537408U (en) | 2013-05-06 | 2013-05-06 | End-to-end voice communication privacy device with assignable secret key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320242026.8U CN203537408U (en) | 2013-05-06 | 2013-05-06 | End-to-end voice communication privacy device with assignable secret key |
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| Publication Number | Publication Date |
|---|---|
| CN203537408U true CN203537408U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320242026.8U Expired - Fee Related CN203537408U (en) | 2013-05-06 | 2013-05-06 | End-to-end voice communication privacy device with assignable secret key |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472603A (en) * | 2014-09-30 | 2016-04-06 | 易讯科技股份有限公司 | Communication terminal encryption system and encryption method thereof |
| CN105530635A (en) * | 2014-09-30 | 2016-04-27 | 易讯科技股份有限公司 | Communication terminal encryption device |
| CN114867012A (en) * | 2022-05-30 | 2022-08-05 | 北京启星微电子有限公司 | Encryption earphone and voice communication method thereof |
-
2013
- 2013-05-06 CN CN201320242026.8U patent/CN203537408U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472603A (en) * | 2014-09-30 | 2016-04-06 | 易讯科技股份有限公司 | Communication terminal encryption system and encryption method thereof |
| CN105530635A (en) * | 2014-09-30 | 2016-04-27 | 易讯科技股份有限公司 | Communication terminal encryption device |
| CN114867012A (en) * | 2022-05-30 | 2022-08-05 | 北京启星微电子有限公司 | Encryption earphone and voice communication method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160506 |