CN205283718U - High definition digital video safety protection system - Google Patents

Abstract

The utility model provides a set up double -H groove weld - key key device's video safety protection system, includes video safety governor and backstage surveillance center, the video safety governor includes: encrypt the authentication circuit, the frequency encoding and decoding circuit is looked to authentication circuit, sound, encrypts the memory circuit, encrypts U -key key device and deciphering U -key key device. Match successfully back with encryption authentication circuit in encrypting U -key key device, to encrypting storage operation. Deciphering U -key key device matches successfully back with the authentication circuit, decrypts storage operation. The deciphering sets up the communication module who has the SIM card among the U -key key device, can be independently and backstage surveillance center communicate and fix a position. Through setting up the grade privilege management that double -H groove weld - key key device had realized different functions, prevent improper operation. Communication module among the deciphering U -key key device can automatic pass to backstage surveillance center to present position and operation, can in time carry out the processing that the various phases was answered.

Description

A kind of high-definition digital video safety precaution system

Technical field

The utility model relates to and being encrypted and the device of safeguard protection to the video data in numeral high-definition video monitoring system; particularly relate to one and multiple U-key key device is set; multiple U-key key device is respectively independent and adds decryption key device and multiple classification authority solution decryption key device, and is provided with the Video security safeguard system of communication module in all U-key key devices. By independent channel, possesses remote communications capability, it is possible to carry out long-range video and call, the function such as long-range control of authority, encryption and decryption.

Background technology

Currently, video monitoring apparatus has been installed in more and more places (comprising public or private site), for monitoring and record the various events that a certain region occurs, and the digital high-definition supervisory system (NVR) that video monitoring has been replaced by under High speed network by original simulating signal supervisory system (DVR). Current existing video monitoring system, is not encrypted for the video data data recorded, the video data of recording storm wind can be used audio-visual etc. universal player is play; And NVR does not support the use with U-key; The video data recorded in NVR are not carried out strict grade authority management, as long as the various operating equipments being suitable for all can copy the video data of recording from NVR, and the storage media such as the hard disk that uses of all NVR equipment all can be identified in any PC, and read the video recording data data on storage media.

The main problem that prior art exists is, because the video data data recorded is not encrypted, so the video data data recorded in monitoring can be replicated easily and play; Lacking technique means for the video data data recorded and carry out grade authority management, video data data can, by user's duplicate copy at different levels, can cause propagating on a large scale; The medium (such as hard disk) storing video data the storage of video data used universal document system, so can connect on arbitrary PC equipment and be read out. This some be the defects of the video data in digital video recorder (NVR) at secure context above, it is possible to causes the video data data that should maintain secrecy or limit use by not local duplicate copy and to propagate projection.

But in addition on the one hand, if the U-key key device as whole system important composition parts is lost, also can cause loss difficult to the appraisal.

In addition, for some large-scale vertical enterprises such as bank, the mobile operation Room, government depositary, army, public security subordinate area under one's jurisdiction etc. For its management function, higher level needs the video monitoring information that can check subordinate, but subordinate can not check higher level, can not check the content of oneself subordinate non-.

Summary of the invention

For the above-mentioned defect existed in prior art, the purpose of this utility model is to provide a kind of Video security safeguard system arranging multiple U-key key device, multiple U-key key device is respectively and adds decryption key device reconciliation decryption key device, by different U-key key devices, video data data can be encrypted and decrypted process respectively, the relating operation authority of restriction NVR, avoids video data data arbitrarily to be read; Another object of the present utility model is, by arranging communication module in deciphering U-key key device, U-key key is possible not only to encrypt and decrypt setting, and by independent channel, possesses remote communications capability, long-range video can be carried out call, the function such as long-range control of authority, encryption and decryption. Even if the important parts deciphering U-key key device forming Video security control is lost, it is also possible to is processed in time by the remote control of backstage security centre, prevents further loss. Also check video monitoring by u-key transmission path is long-range; Having the superior and the subordinate's authority and attribute relation due to multiple solution decryption key simultaneously, have tree structure feature, therefore the u-key key of higher level can check the video system of deciphering subordinate.

In order to solve its technical problem, the technical solution adopted in the utility model is:

A kind of high-definition digital video safety precaution system, comprising Video security controller, background monitoring center, multiple U-key key device, described Video security controller comprises: encryption authentication circuit, authentication circuit, audio/video encoding/decoding circuit, cryptographic storage circuit; Described multiple U-key key device comprises encryption U-key key device, and deciphering U-key key device;

Wherein, described encryption authentication circuit reads in described encryption U-key key device the authority keys prestored and adds decryption key, after the match is successful with described encryption authentication circuit, the audio, video data in cryptographic storage circuit is encrypted storage operation;

Described authentication circuit reads in described deciphering U-key key device the authority keys prestored and conciliates decryption key, after the match is successful with described authentication circuit, by audio/video encoding/decoding circuit, the audio, video data that digital video recorder is recorded is sent to cryptographic storage circuit, it is decrypted storage operation;

Described deciphering U-key key device arranges the communication module with SIM card, can independently carry out communicating and locating with background monitoring center;

Described background monitoring center comprises background server and monitoring terminal, by the communication module in deciphering U-key key device, Video security safeguard system is carried out remote control.

Wherein, described encryption authentication circuit reads in described encryption U-key key device the authority keys prestored and adds decryption key, after the match is successful with described encryption authentication circuit, the audio, video data in cryptographic storage circuit is encrypted storage operation; Encryption algorithm uses DES and AES encryption and decryption agreement, and wherein the realization of DES/3DES and aes algorithm meets FIPS46-3/FIPS197 standard, and the operating mode of DES/3DES and AES meets FIPS-81/NISTspecial800-38a standard.

Described authentication circuit reads in described deciphering U-key key device the authority keys prestored and conciliates decryption key, after the match is successful with described authentication circuit, by audio/video encoding/decoding circuit, the audio, video data that digital video recorder is recorded is sent to cryptographic storage circuit, it is decrypted storage operation;

Described coding-decoding circuit comprises codec chip, sound signal input circuit, video signal input circuit,And transmit the audio-video interface circuit of audio-video signal; Described authentication circuit transmits signals to audio/video encoding/decoding chip by sound signal input circuit and video signal input circuit; Audio/video encoding/decoding chip is connected with cryptographic storage circuit by audio-video interface circuit, and to the sound signal of recording and encoding video signal and decoding.

Described background monitoring center includes background server and monitoring terminal, by the communication module in deciphering U-key key device, Video security safeguard system is carried out remote control.

Owing to have employed above technical scheme, the beneficial effects of the utility model are: by arranging multiple U-key key devices of the encryption and decryption function mated mutually with authentication circuit, operation to digital video recorder NVR, the manipulation require to Voice & Video data data use the U-key key device mandate of respective different rights, by physical means, the audio, video data recorded can be encrypted and decrypted process, video encrypt data storage cannot be operated without encryption authorization; Then cannot copy without decrypt authorized, play video; Memory file system is done dedicated processes, avoids and read by general computing device; The U-key key device possessing not congenerous by arranging achieves the management of grade authority, important video recording data data can be prevented by unauthorized copy, propagation, projection, fundamentally solve security and the confidentiality of the video data recorded. Owing to having the communication module of SIM card in deciphering U-key key device, if have user deciphering U-key key device lose or stolen, when the deciphering U-key key device having people to hold loss carries out using time, if the insertion USB interface energising of this deciphering U-key key device, communication module will pass to background monitoring center present position and operation automatically, background monitoring center can carry out various corresponding process in time, prevents the generation of loss; Higher level's key can decipher subordinate equipment content, and subordinate can not operate higher level, also can not access mutually between higher level.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model high-definition digital video safety precaution system.

Embodiment

Below in conjunction with accompanying drawing and an embodiment, the utility model will be further described.

Shown in Figure 1, it is a kind of embodiment of the utility model Video security safeguard system. Video security safeguard system and multiple camera system, and audio, video data transmission device, data storage equipment etc. (not shown in FIG.) is connected accordingly. Video security safeguard system comprises Video security controller and background monitoring center, wherein, Video security controller comprises: authentication circuit, encryption authentication circuit, audio/video encoding/decoding circuit, the encryption U-key key device prestoring authority keys respectively of cryptographic storage circuit and multiple physics independence and deciphering U-key key device (encryption U-key key device and deciphering U-key key device can according to the needs of administration authority, be respectively arranged with one, two or more); Encryption U-key key device mates mutually with described encryption authentication circuit, and deciphering U-key key device mates mutually with described authentication circuit; Arranging the communication module with SIM card in described deciphering U-key key device, communicating by GPRS, module is independent to be carried out communicating and locating with background monitoring center. Communicate module and the communication mutual with background monitoring center thereof of these GPRS with SIM card all realizes by the existing communication technology.

Audio/video encoding/decoding circuit comprises codec chip; Sound signal input circuit, video signal input circuit, transmits the audio-video interface circuit of audio-video signal; Described codec chip is connected with authentication circuit by sound signal input circuit and video signal input circuit, and is connected with cryptographic storage circuit by audio-video interface circuit.

Background monitoring center comprises the equipment such as background server, monitoring terminal.

The sound signal that NVR is recorded by codec chip and encoding video signal and decoding.

Encryption authentication circuit reads in described encryption U-key key device the authority keys prestored and adds decryption key, after the match is successful with encryption authentication circuit, audio, video data in cryptographic storage circuit is encrypted storage operation, cryptographic storage circuit mixes by the audio, video data of recording with key, forms encrypt file and is also stored in computer.

Authentication circuit reads in described deciphering U-key key device the authority keys prestored and conciliates decryption key, after the match is successful with authentication circuit, by audio/video encoding/decoding circuit, the audio, video data that the NVR stored in cryptographic storage circuit records is decrypted operation.

The external input signal (such as playback, derivation etc.) that the match is successful could transmit signal to subsequent module, if mating unsuccessful, this instruction is cancelled.

By arranging independent and possess multiple U-key key devices of different rights, the video encrypt data storage operation recorded by digital video recorder and deciphering operation, serve the effect of the operation authority controlling described video data.

In the process that Video security safeguard system is authorized for the first time, authority keys and add decryption key, separate decryption key and will be imported into by circuit and be kept at encryption authentication module, authentication module and operate for subsequent authentication. For the initialize authorization function of key, corresponding read-write program client terminal is coordinated to complete by ordinary PC and USB interface.

By arranging the U-key key device of physics independence: the encryption U-key key device namely mated mutually with encryption authentication circuit module, and the deciphering U-key key device mated mutually with authentication circuit module, by personnel's keeping with corresponding management or operation authority, achieve the grade authority management of video data, data can be prevented by unauthorized preservation, amendment, copy, propagation, projection, fundamentally solve security and the confidentiality of data.

Video security safeguard system of the present utility model has multiple function, the multiple requirement of video monitoring can be met, safeguard comprising real-time video monitoring, video recording inquiry, playing back videos, video recording download, alarming and managing, event management, system configuration, user management, system administration, the particularly multiple function such as data encryption and decryption. But all functions use and multiple U-key encrypting and decrypting key device must be coordinated to carry out.

Video security safeguard system of the present utility model, must rely on and insert the normal use of encryption and decryption U-key key device ability respectively, when not having corresponding U-key key device or U-key key device not to mate, all video data various operation be cannot be carried out, the security of emphasis video file and tightness ensure that.

The security of Video security safeguard system of the present utility model is especially embodied in, as long as the deciphering U-key key device of reading video data Video security safeguard system can be entered, after insertion USB interface is energized, all operation informations to Video security safeguard system, and decipher the information such as the position residing for U-key key device and operation, all automatically can pass to background monitoring center by the independent GPRS communication independent chain circuit message of module. On the one hand, background monitoring center can the operational circumstances of all videos of long-range understanding. On the other hand, Video security safeguard system, by the GPRS communication module in deciphering U-key key device, can be carried out remote control by background monitoring center. If there occurs deciphering U-key key device loss or stolen situation, background monitoring center can carry out various corresponding process in time, even long-range direct triggering this deciphering U-key key failure of apparatus.

Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, its object is to help to understand content of the present utility model and implement according to this, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and appended claim, various replacement, change and amendment are all possible. Therefore, the utility model should not be limited to the content disclosed in embodiment and accompanying drawing.

Claims (2)

1. a high-definition digital video safety precaution system, comprise Video security controller, background monitoring center, multiple U-key key device, it is characterised in that: described Video security controller comprises: encryption authentication circuit, authentication circuit, audio/video encoding/decoding circuit, cryptographic storage circuit; Described multiple U-key key device comprises encryption U-key key device, and deciphering U-key key device;

Wherein, described encryption authentication circuit reads in described encryption U-key key device the authority keys prestored and adds decryption key, after the match is successful with described encryption authentication circuit, the audio, video data in cryptographic storage circuit is encrypted storage operation;

Described authentication circuit reads in described deciphering U-key key device the authority keys prestored and conciliates decryption key, after the match is successful with described authentication circuit, by audio/video encoding/decoding circuit, the audio, video data that digital video recorder is recorded is sent to cryptographic storage circuit, it is decrypted storage operation;

Described deciphering U-key key device arranges the communication module with SIM card, can independently carry out communicating and locating with background monitoring center;

Described background monitoring center comprises background server and monitoring terminal, by the communication module in deciphering U-key key device, Video security safeguard system is carried out remote control.

2. high-definition digital video safety precaution system according to claim 1, it is characterised in that: the communication module arranged in described deciphering U-key key device is GPRS communication module.