CN100469132C - Method for secrete communication between visual telephones - Google Patents
Method for secrete communication between visual telephones Download PDFInfo
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- CN100469132C CN100469132C CNB2004100710435A CN200410071043A CN100469132C CN 100469132 C CN100469132 C CN 100469132C CN B2004100710435 A CNB2004100710435 A CN B2004100710435A CN 200410071043 A CN200410071043 A CN 200410071043A CN 100469132 C CN100469132 C CN 100469132C
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Abstract
This invention relates to a secure communication method between video videophone terminals including: ciphering sound data, ciphered data transmission and reception and decoding and deciphering the received data characterizing that video videophone terminal of said transmission end transmits specially processed total or fixed region picture data to make the unevolved third party in the secure communication not identify it at the terminal of the receive end which receives the processed picture data and recovers the specially processed total or fixed region picture data according to the transmission end.
Description
Technical field
The present invention relates to the method for secret telephony between radio phone terminal, particularly, provide a kind of in the secret telephony that only adopts voice data to encrypt, maintained secrecy for video telephone replenishes, do not discerned the method for the possibility that the elimination labiomaney is eavesdropped by the third party by the graph data of handling on the screen.
Background technology
Development along with modern society's communication network, when communication is widely used in all spectra of our life, when signal transmitted and receives by communication network, communication network was easy to the eavesdropping by other people in the individual uses, and people are owing to the privacy exposure comes to harm.
Same, when the enterprise with a large amount of industry information utilized above-mentioned industry information by communication network, information was easy to be eavesdropped, for this reason, and enterprise's instability.
Particularly, because such eavesdropping respectively directly is associated with the criminal detention and the national security of police office and army, can produce a lot of problems.
As mentioned above, along with the development of communication network, the problem relevant with the eavesdropping that is dispersed throughout society and the safety assurance of communication become and are starved of.
On the one hand, along with the development of Image Compression, be unlike in the talk of fogey phone line, the video telephone technology of display image becomes universal in by Internet and wireless environment telephone talk.
Situation to the fogey phone of not using image, secure communication is realized with such method: above-mentioned fogey phone realizes that with encrypted code transmission voice data sound is secret, and the code deciphering that receives is voice data, so secret available this method of sound is finished.
Like this, sound is transmitted with image and the situation of the video telephone that receives, a kind ofly encrypt incomplete embodiment by voice data and be, because the third party steals transmission between the talker and the picture that receives carries out the danger of labiomaney.Just, the talker's that transmits with sound of video telephone image has by the danger of third party's labiomaney (other people talk the shape recognition by lip) eavesdropping.
Correlation technique
The present invention's design is in order to address the above problem, and goal of the invention provided by the invention provides a kind of additional anti-eavesdrop method that is used for the video telephone of secure communication, its purpose is to eradicate the possibility of eavesdropping by labiomaney, the improvement of safety that makes communication, wherein the whole image of video telephone transmission encryption or special talker's mouth of handling.
The method of carrying out secure communication between video telephone is, voice data is encrypted, ciphered data transmission and reception, the data that receive are deciphered by decoding: in order to finish above-mentioned purpose, carry out the additional anti-eavesdrop method of secure communication between the video telephone provided by the invention, it is characterized in that, the picture data of the whole or fixed area of the radio phone terminal transmission special processing of above-mentioned transmission ends, make third party's nonrecognition of not participating in secure communication at the radio phone terminal of receiving terminal, and the radio phone terminal of receiving terminal receives the picture data handled and according to the whole or fixed area of the special processing of the method recovery picture data of transmission ends radio phone terminal processing.
Summary of the invention
The present invention relates between video telephone, carry out the method for secure communication, in more detail, a kind of possibility of not eavesdropped by labiomaney by the view data of handling on the screen by third party's identification, elimination, the method for maintaining secrecy of replenishing of only encrypting voice data for the video telephone in secure communication.
The method of secure communication is that voice data is encrypted between video telephone, encrypted data transmission and reception, decipher the data that receive by decoding then: in order to finish above-mentioned purpose, carry out the additional anti-eavesdrop method of secure communication between the video telephone provided by the invention, it is characterized in that, the picture data that comprises talker's mouth of the subregion of the radio phone terminal transmission special processing of above-mentioned transmission ends, make third party's nonrecognition of not participating in secure communication at the radio phone terminal of receiving terminal, and the radio phone terminal of receiving terminal receives the picture data handled and does not recover the picture data that comprises talker's mouth of the subregion of special processing according to the method for transmission ends radio phone terminal processing; At the radio phone terminal of the above-mentioned transmission ends different image of transmission but not the picture data that comprises talker's mouth of subregion, make third party's nonrecognition of not participating in secure communication at the radio phone terminal of receiving terminal, the radio phone terminal of receiving terminal receives the picture data of handling and does not recover the picture data that comprises talker's mouth of the subregion of special processing.
Description of drawings
Fig. 1 is for using the structural representation of video telephone of the present invention.
Critical piece numbering among the figure:
10, the 20:A/D transducer
12: screen processing
14: image compression unit
22: the sound compression unit
24: DEU data encryption unit
30: data transmission unit
40: transmission network
50: the Data Receiving unit
60: the image decompression unit
62: screen processing
64, the 74:D/A transducer
70: data decryption unit
72: sound decompress(ion) unit
Embodiment
With reference to the accompanying drawings structure of the present invention and operating principle are described in detail below.
Fig. 1 is for using video telephone structural representation of the present invention.
Picture signal for transmission ends, in A/D converter (10), the analog image input signal is converted to data image signal, screen processing (12) is carried out special processing not eavesdropped by labiomaney to the whole or fixed area of each picture, and image compression unit (14) is the data of low transmission speed with the data compression of special processing.Then, be transferred to transmission network (40), for example PSTN, Internet and wireless network by data transmission unit (30) packed data.
For the voice signal of transmission ends, A/D converter (20) is converted to digital audio signal with the simulated sound input signal, and sound compression unit (22) is the data of low transmission speed with data compression, and DEU data encryption unit (24) produces encryption secure communication data.Then, encrypt the secure communication data by data transmission unit (30) and be transferred to transmission network (40), for example PSTN, Internet and wireless network.
Data image signal can be based on the encryption of picture processing or the method for mosaic at the picture processing method of above-mentioned screen processing (12).
Above-mentioned mosaic is the mosaic picture that shows from the raw frames distortion, wherein above-mentioned mosaic picture can produce like this: each point data that should be presented at its loca position in the fixed area of picture does not show, but the data of randomly drawing a little in the fixed area of above-mentioned picture, above-mentioned every bit data repeat demonstration in each some position.
By the whole image of user's decision or the manual handle of part picture is the zone that directly is assigned to particular procedure, and perhaps the automatic processing in some zones is to be identified in the particular procedure zone of determining to specify the use of particular procedure zone in the picture automatically around talker's mouth.
Automatically the advantage of handling is, if has moved talker's position in the telephone conversation process, the automatic compensation picture of mouth peripheral region is handled on the picture.
Compare with the method for handling whole image, the processing method in above-mentioned screen processing (12) processing picture particular fixed zone can reduce the operation of system.
At receiving terminal, Data Receiving unit (50) receives compressing image data and to from transmission network (40), PSTN for example, the voice data of Internet and wireless network is encrypted, image decompression unit (60) is above-mentioned 2 kinds of data with the view data decompress(ion) of compression, and screen processing (62) reverts to raw frames with the fixed area of picture special processing.Then, D/A converter (64) is converted to analog picture signal with the data recovered picture signal, is presented on the screen.
DEU data encryption unit (70) is with the voice data of encrypting, and sound decompress(ion) unit (72) is with the low message transmission rate of voice data boil down to.Then, D/A converter (74) is converted to analoging sound signal with the digital audio signal of decompress(ion), sounds by loudspeaker.
Recover the fixed area of picture according to the special treatment method of the fixed area of the screen processing (12) of delivery end in the screen processing (62) of receiving terminal.
Just, the fixed area decryption restoration of the special processing that process is encrypted recovers by the processing with the mosaic reverse order through the fixed area of mosaic processing.
According to the invention described above, can eradicate the overall safety of realizing sound by the possibility of labiomaney eavesdropping, its transfer of data and reception are that whole image is encrypted or the special processing of mouth picture.
Because compare with the method for handling whole image, the processing method of special processing fixed area can reduce the operation of system, under the fixed area situation of picture, the overall safety of sound can be realized with low relatively cost.
When using when can discern the processing method of picture processing region automatically, for the user picture processing region being set does not have inconvenience, and if in telephone conversation process kind talker's change in location, the picture processing region compensates automatically.
Because those people that have common sense and technology in the technology of the present invention field will recognize additional modification and the application in its scope, the present invention is not restricted to embodiment described above and accompanying drawing.
Claims (3)
1. additional anti-eavesdrop method that is used for secure communication between video telephone, it is characterized in that: the picture data that comprises talker's mouth of the subregion of the radio phone terminal of transmission ends transmission special processing, make third party's nonrecognition of not participating in secure communication at the radio phone terminal of receiving terminal, the radio phone terminal of receiving terminal receives the picture data of handling, and the third party who does not participate in secure communication at the radio phone terminal of receiving terminal does not recover the picture data that comprises talker's mouth of the subregion of special processing.
2. the additional anti-eavesdrop method that is used for secure communication between video telephone according to claim 1 is characterized in that: the radio phone terminal of described transmission ends is handled the face area of the talker in the picture data.
3. the additional anti-eavesdrop method that is used for secure communication between video telephone according to claim 1 is characterized in that: the radio phone terminal of described transmission ends is handled the talker's mouth region in the picture data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100710435A CN100469132C (en) | 2004-07-28 | 2004-07-28 | Method for secrete communication between visual telephones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100710435A CN100469132C (en) | 2004-07-28 | 2004-07-28 | Method for secrete communication between visual telephones |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1589007A CN1589007A (en) | 2005-03-02 |
| CN100469132C true CN100469132C (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100710435A Active CN100469132C (en) | 2004-07-28 | 2004-07-28 | Method for secrete communication between visual telephones |
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| CN (1) | CN100469132C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193261B (en) * | 2007-03-28 | 2010-07-21 | 腾讯科技（深圳）有限公司 | Video communication system and method |
| TWI570711B (en) * | 2014-12-12 | 2017-02-11 | 魏如隆 | Dynamic spectrum audio encryption device and method thereof |
| CN113691857A (en) * | 2021-08-27 | 2021-11-23 | 贵州东冠科技有限公司 | Lip language shielding system and method based on augmented reality |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606361A (en) * | 1995-05-10 | 1997-02-25 | Davidsohn; John | Videophone interactive mailbox facility system and method of processing information |
| CN1147741A (en) * | 1995-06-22 | 1997-04-16 | 村田机械侏式会社 | Scrambled image communication device |
| CN1147735A (en) * | 1995-06-30 | 1997-04-16 | 村田机械株式会社 | Communication method and communication device |
| US6353669B1 (en) * | 1995-12-04 | 2002-03-05 | Sun Microsystems, Inc. | Method and apparatus that processes a video signal to generate a random number generator seed |
| CN1338872A (en) * | 2000-04-19 | 2002-03-06 | 三菱电机株式会社 | Method for protecting secret video telephone communication and video telephone device |
| US6549229B1 (en) * | 1999-07-26 | 2003-04-15 | C-Cubed Corporation | Small, portable, self-contained, video teleconferencing system |
-
2004
- 2004-07-28 CN CNB2004100710435A patent/CN100469132C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606361A (en) * | 1995-05-10 | 1997-02-25 | Davidsohn; John | Videophone interactive mailbox facility system and method of processing information |
| CN1147741A (en) * | 1995-06-22 | 1997-04-16 | 村田机械侏式会社 | Scrambled image communication device |
| CN1147735A (en) * | 1995-06-30 | 1997-04-16 | 村田机械株式会社 | Communication method and communication device |
| US6353669B1 (en) * | 1995-12-04 | 2002-03-05 | Sun Microsystems, Inc. | Method and apparatus that processes a video signal to generate a random number generator seed |
| US6549229B1 (en) * | 1999-07-26 | 2003-04-15 | C-Cubed Corporation | Small, portable, self-contained, video teleconferencing system |
| CN1338872A (en) * | 2000-04-19 | 2002-03-06 | 三菱电机株式会社 | Method for protecting secret video telephone communication and video telephone device |
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| CN1589007A (en) | 2005-03-02 |
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