CN109474800A - A kind of high-performance audio-video ciphering and deciphering device of identity-based certification - Google Patents
A kind of high-performance audio-video ciphering and deciphering device of identity-based certification Download PDFInfo
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- CN109474800A CN109474800A CN201811544675.7A CN201811544675A CN109474800A CN 109474800 A CN109474800 A CN 109474800A CN 201811544675 A CN201811544675 A CN 201811544675A CN 109474800 A CN109474800 A CN 109474800A
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- video data
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101100288434 Arabidopsis thaliana LACS2 gene Proteins 0.000 description 1
- 208000033550 Proximal spinal muscular atrophy type 4 Diseases 0.000 description 1
- 101100294206 Schizosaccharomyces pombe (strain 972 / ATCC 24843) fta4 gene Proteins 0.000 description 1
- 201000006960 adult spinal muscular atrophy Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 208000005606 type IV spinal muscular atrophy Diseases 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
- H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
Abstract
The invention discloses a kind of high-performance audio-video ciphering and deciphering devices of identity-based certification, the ciphering and deciphering device includes: governor circuit, data encrypting and deciphering module, video data receiving module and video data output module, the signal for being loaded with video data is linked into video data receiving module by front network video camera by TCP/IP network interface, by the access interface of video data receiving module by video data transmission to ethernet processor；After video data transmission is carried out protocol analysis and data processing to governor circuit by ethernet processor, data encrypting and deciphering module is transferred to be encrypted, video data after encryption carries out the decryption processing of video data by the TCP/IP network interface transfers of video data output module to data encrypting and deciphering module, the video data that decryption is completed is passed in external network hard disk video recorder.The invention avoids the leakages of video information, eliminate security risk that may be present.
Description
Technical field
The present invention relates to the high-performance audio-video encryption and decryption that audio-video encryption field more particularly to a kind of identity-based authenticate
Device.
Background technique
In order to safeguard national security and social stability, China is in each big city, Party and government offices, military key area and important place
All deploy a large amount of safety defense monitoring systems.But with scientific and technological progress, social development, information-based and networking degree is improved, structure
The audio/video monitor and control system of frame and open IP network similarly faces the various security threats that other networks are faced, various loopholes
And disadvantage also gradually appears.
Video stream data is intercepted and captured by interception and communication protocol carries out Network Intrusion, system is caused to can not work normally, and is led to
The loophole and weak spot in the video data grasp security work intercepted and captured are crossed, destructive activity is targetedly carried out, country is pacified
Complete and social stability is caused and is seriously threatened.
Summary of the invention
The present invention provides a kind of high-performance audio-video ciphering and deciphering devices of identity-based certification, and the invention avoids videos
The leakage of information eliminates security risk that may be present, described below:
A kind of high-performance audio-video ciphering and deciphering device of identity-based certification, the ciphering and deciphering device include: governor circuit,
Data encrypting and deciphering module, video data receiving module and video data output module,
The signal for being loaded with video data is linked into video data by TCP/IP network interface and connect by front network video camera
It receives in module, by the access interface of video data receiving module by video data transmission to ethernet processor；
After video data transmission is carried out protocol analysis and data processing to governor circuit by ethernet processor, it is transferred to number
It is encrypted according to encryption/decryption module, the video data after encryption passes through the TCP/IP network of video data output module
Interface is transferred to the decryption processing that data encrypting and deciphering module carries out video data, and the video data that decryption is completed is passed to outside
Network hard disk video recorder in.
Wherein, the model DM9161AE of the ethernet processor, the ethernet processor will be received from the port J5
Data carry out data conversion and by PB0-PB18 port transmission to governor circuit.
Further, the model HS08K of the data encrypting and deciphering module, by USBDM, USBDP pin by video counts
According to being transferred to governor circuit.
Wherein, the model AT91SAM7X256 chip of the governor circuit, the USBDM pin connect second resistance,
Then the P93 pin DDM of AT91SAM7X256 chip is accessed again；The USBDP pin connects first resistor, then accesses again
The P94 pin DDP of AT91SAM7X256 chip.
The beneficial effect of the technical scheme provided by the present invention is that:
1, the product uses the data encrypting and deciphering module with the close office's examination & approval of state, meets important department and monitors to security protection video
The demand of high safety encryption application, improves the reliability and security of security protection audio/video monitor and control system, passes through Hybrid Encryption Protocol
Guarantee the high security of video encryption system；
2, the product shortens the processing time of video information by hardware chip cryptographic algorithm, guarantees that real-time video passes
It is defeated, implement simple, easy to use.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the high-performance audio-video ciphering and deciphering device of identity-based certification；
A: main control module；B: power supply module；
C: program download module；D: data encrypting and deciphering module；
E: data memory module；F: video data receiving module；
G: reseting module；H: video data output module.
Fig. 2-1 and 2-2 is the schematic diagram of video data receiving module；
That is, video data receiving module is divided into 2 parts.
Fig. 3 is the schematic diagram of data encrypting and deciphering module.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention is made below further
Ground detailed description.
A kind of high-performance audio-video ciphering and deciphering device of identity-based certification be realize to video information processing, transmission,
Encryption and decryption processing in storage, display, control and replayed section.
A kind of high-performance audio-video ciphering and deciphering device of identity-based certification is close using being examined by national Password Management office
Code module supports a variety of international standards of the national secret algorithms and RSA, DES, 3DES, AES, SHA etc. such as SM1, SM2, SM3, SM4 to calculate
Method has the characteristics such as identity identification, access control, national secret algorithm encryption and decryption, verifying data signature.
The present invention provides a kind of high-performance audio-video ciphering and deciphering device of identity-based certification, which can protect use
The important and sensitive image in family is not illegally stolen, distorts, refusing illegal user using the equipment invasive system forged, and is detailed in down
Text description:
A kind of high-performance audio-video ciphering and deciphering device of identity-based certification, referring to Fig. 1, which includes: governor circuit
A, power supply module B, program download module C, data encrypting and deciphering module D, data memory module E, video data receiving module F, multiple
Position module G and video data output module H.
In entire audio/video monitor and control system, high-performance audio-video ciphering and deciphering device is played a crucial role.Front end
The signal for being loaded with video data is linked into the video counts of audio-video encryption device by web camera by TCP/IP network interface
According in receiving module F, by the access interface J5 (RJ45) of video data receiving module F, by video data transmission to Ethernet
Processor MN1 (DM9161AE), then video data transmission is given to main control chip U1 by ethernet processor MN1
(AT91SAM7X256) protocol analysis and data processing are carried out.(referring to attached drawing 2-1 and 2-2)
Video data is transmitted further to after main control chip U1 (AT91SAM7X256) carries out protocol analysis and data processing
U2 (HS08K) in data encrypting and deciphering module D be encrypted completed (referring to attached drawing 3) encryption video data it is logical
The TCP/IP network interface transfers for crossing video data output module H are carried out to data encrypting and deciphering module D at the decryption of video data
Reason is finally passed to the video data that decryption is completed in external network hard disk video recorder again.
A kind of receive capabilities of the video data of the high-performance audio-video ciphering and deciphering device of identity-based certification are by video counts
It is completed according to receiving module.Ethernet processor MN1 (DM9161AE) in video data receiving module F will be from the port J5 (RJ45)
Received data carry out data conversion and give main control chip U1 (AT91SAM7X256) by PB0-PB18 port transmission.(referring to
Attached drawing 2-1 and 2-2).
A kind of data encrypting and deciphering function of the high-performance audio-video ciphering and deciphering device of identity-based certification is to add solution by data
What close module D was completed.Deciphering chip U2 (HS08K) is a low-power consumption, low cost, high security, multi-functional password
Safety chip.The major function that the chip is realized includes: on piece key management (including password generates, storage, updates etc.), in piece
RSA, ECC (SM2) coprocessor, realize SM3, SHA algorithm core in digital signature and authentication, piece, SM1, SMA4 in piece,
SSF33 and DES (TDES) hardware algorithm core support a variety of safety management controls.
Wherein, the control between main control chip and deciphering chip U2, and specific digital signature and authentication, with
And the operation of encryption and decryption is known to those skilled in the art, it can be using the technological means in bibliography [1], specific implementation
When, the embodiment of the present invention is without limitation.
Deciphering chip U2 (HS08K) gives video data transmission to main control chip U1, this hair by USBDM, USBDP pin
Bright transmission signal that in the design can be more efficient for two differential signal lines (D, D-) of USB2.0 protocol definition, to D, D- line
Road, that is, USBDM, USBDP has carried out impedance matching (referring to attached drawing 3).
The differential signal line of USB2.0 protocol definition transmits high-speed digital signal, and highest transmission rate is 480Mbps, poor
Differential voltage on sub-signal line is 400mV, ideal differential impedance (1 ± O.1) Ω that is 90.The P25 pin D- of U2 (HS08K)
(i.e. USBDM) connects second resistance R10, then accesses the P26 pin D of P93 the pin DDM, U2 (HS08K) of main control chip U1 again
+ (i.e. USBDP) connection first resistor R9, then accesses the P94 pin DDP of main control chip U1 again, it then follows build-out resistor value and drive
The sum of the output impedance of dynamic device is equal to the principle of the characteristic impedance of transmission line, it is determined that first resistor R9's and second resistance R10
Resistance value is inhibited with ensuring that output impedance and the characteristic impedance of transmission line of source match from the reflected signal of load end
Secondary reflection again occurs, realizes the integrality of transmission signal.
Bibliography
[1] Lin Xiao cryptological technique is applied to network information security research [J] network security technology and applies, 2018
(09)
The embodiment of the present invention to the model of each device in addition to doing specified otherwise, the model of other devices with no restrictions,
As long as the device of above-mentioned function can be completed.
Claims (4)
1. a kind of high-performance audio-video ciphering and deciphering device of identity-based certification, which is characterized in that the ciphering and deciphering device includes:
Governor circuit, data encrypting and deciphering module, video data receiving module and video data output module,
The signal for being loaded with video data is linked into video data by TCP/IP network interface and receives mould by front network video camera
In block, by the access interface of video data receiving module by video data transmission to ethernet processor；
After video data transmission is carried out protocol analysis and data processing to governor circuit by ethernet processor, it is transferred to data and adds
Deciphering module is encrypted, and the video data after encryption passes through the TCP/IP network interface of video data output module
It is transferred to the decryption processing that data encrypting and deciphering module carries out video data, the video data that decryption is completed is passed to external net
In network hard disk video recorder.
2. a kind of high-performance audio-video ciphering and deciphering device of identity-based certification according to claim 1, which is characterized in that
The model DM9161AE of the ethernet processor,
The ethernet processor will carry out data conversion from the received data in the port J5 and be given by PB0-PB18 port transmission
Governor circuit.
3. a kind of high-performance audio-video ciphering and deciphering device of identity-based certification according to claim 1, which is characterized in that
The model HS08K of the data encrypting and deciphering module, by USBDM, USBDP pin by video data transmission to governor circuit.
4. a kind of high-performance audio-video ciphering and deciphering device of identity-based certification according to claim 3, which is characterized in that
The model AT91SAM7X256 chip of the governor circuit,
The USBDM pin connects second resistance, then accesses the P93 pin DDM of AT91SAM7X256 chip again；
The USBDP pin connects first resistor, then accesses the P94 pin DDP of AT91SAM7X256 chip again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544675.7A CN109474800A (en) | 2018-12-17 | 2018-12-17 | A kind of high-performance audio-video ciphering and deciphering device of identity-based certification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544675.7A CN109474800A (en) | 2018-12-17 | 2018-12-17 | A kind of high-performance audio-video ciphering and deciphering device of identity-based certification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109474800A true CN109474800A (en) | 2019-03-15 |
Family
ID=65676195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811544675.7A Pending CN109474800A (en) | 2018-12-17 | 2018-12-17 | A kind of high-performance audio-video ciphering and deciphering device of identity-based certification |
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Citations (8)
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|---|---|---|---|---|
| US20050123135A1 (en) * | 2003-12-05 | 2005-06-09 | Motion Picture Association Of America | Secure video system for display adaptor |
| CN101030903A (en) * | 2006-03-03 | 2007-09-05 | 南京艾迪恩斯数字技术有限公司 | System for accessing, monitoring and exchanging network video |
| CN202190362U (en) * | 2011-07-28 | 2012-04-11 | 重庆大唐科技股份有限公司 | Video transmission encrypting system |
| CN106059757A (en) * | 2016-07-07 | 2016-10-26 | 北京信长城技术研究院 | Audio and video monitoring device, data encryption and decryption method, and audio and video display device |
| CN106209916A (en) * | 2016-08-31 | 2016-12-07 | 南京普瑶电子科技有限公司 | Industrial automation produces business data transmission encryption and decryption method and system |
| CN106331597A (en) * | 2015-07-07 | 2017-01-11 | 何志杰 | Video monitoring system |
| CN107948589A (en) * | 2017-11-19 | 2018-04-20 | 天津光电安辰信息技术股份有限公司 | A kind of encrypted box device of security video |
| CN108347584A (en) * | 2018-01-30 | 2018-07-31 | 成都三零凯天通信实业有限公司 | A kind of secure access arrangement with POE functions |
-
2018
- 2018-12-17 CN CN201811544675.7A patent/CN109474800A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050123135A1 (en) * | 2003-12-05 | 2005-06-09 | Motion Picture Association Of America | Secure video system for display adaptor |
| CN101030903A (en) * | 2006-03-03 | 2007-09-05 | 南京艾迪恩斯数字技术有限公司 | System for accessing, monitoring and exchanging network video |
| CN202190362U (en) * | 2011-07-28 | 2012-04-11 | 重庆大唐科技股份有限公司 | Video transmission encrypting system |
| CN106331597A (en) * | 2015-07-07 | 2017-01-11 | 何志杰 | Video monitoring system |
| CN106059757A (en) * | 2016-07-07 | 2016-10-26 | 北京信长城技术研究院 | Audio and video monitoring device, data encryption and decryption method, and audio and video display device |
| CN106209916A (en) * | 2016-08-31 | 2016-12-07 | 南京普瑶电子科技有限公司 | Industrial automation produces business data transmission encryption and decryption method and system |
| CN107948589A (en) * | 2017-11-19 | 2018-04-20 | 天津光电安辰信息技术股份有限公司 | A kind of encrypted box device of security video |
| CN108347584A (en) * | 2018-01-30 | 2018-07-31 | 成都三零凯天通信实业有限公司 | A kind of secure access arrangement with POE functions |
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Application publication date: 20190315 |