CN102857832A - Method and system for protecting program file of malicious operation prevention hard disk playing system - Google Patents
Method and system for protecting program file of malicious operation prevention hard disk playing system Download PDFInfo
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- CN102857832A CN102857832A CN201210379166XA CN201210379166A CN102857832A CN 102857832 A CN102857832 A CN 102857832A CN 201210379166X A CN201210379166X A CN 201210379166XA CN 201210379166 A CN201210379166 A CN 201210379166A CN 102857832 A CN102857832 A CN 102857832A
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Abstract
The invention relates to a method for protecting a program file of a malicious operation prevention hard disk playing system. The method comprises the following steps that: a watermark adding unit adds a watermark into the checked program file; before the program file is played, a watermark detection unit opens the program file added with the watermark and detects whether the watermark is normal or not; and if the watermark is normal, the program file is played, otherwise, the program file is detected, and an alarm is sounded. The invention also discloses a system for protecting the program file of the malicious operation prevention hard disk playing system. By utilizing the method and the system, the watermark adding unit adds the watermark into the uploaded program file; if the program file is illegally replaced or modified, the watermark of the program file is destructed; therefore, before the program file is played, the watermark detection unit detects the watermark of the program file; and if the program file does not have the watermark or the watermark is incorrect or incomplete, the program file is replaced or modified, and the system can sound the alarm and remind people to handle with the program file immediately.
Description
Technical field
The present invention relates to the television broadcasting field, especially a kind of guard method and system of anti-malicious operation Multiway HD Telecasting System program file.
Background technology
At present, the TV Multiway HD Telecasting System is for potential safety hazards such as hardware fault, software fault, virus attack, network interruption, power failures, has preferably safety prevention measure, but for the internal work personnel of TV station, the operation of for example broadcasting operating personnel's malice broadcast illegal programs but lacks protection.On July 7th, 2012,19:20 divided, Chongqing sun at tenth of the twelve Earthly Branches information TV station has play and has surpassed 3 minutes obscene film, finds out that afterwards the suspect poplar is the regular staff of Youyang County TV station, because of discontented to unit management, in advance TV programme is maliciously distorted, implant obscene filmstrip overseas.As seen, Multiway HD Telecasting System has all possessed comparatively perfect safety measure to various possible technical failures, but for the built-in function personnel of TV station for various reasons, the illegal programs content is replaced, is revised as to the normal program file also and then broadcast, to reach this possibility phenomenon of certain political motives or other illegal objective, lack corresponding safe precaution measure.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of passing through that program file to be protected is added watermark, and realization is to the guard method of the anti-malicious operation Multiway HD Telecasting System program file of the protection of program file, and the method comprises the step of following order:
(1) the Watermark-adding unit adds watermark to the program file by examination;
(2) before program file was broadcasted, watermark detection unit was opened the program file of adding watermark, and whether detect its watermark normal, if testing result is yes, then broadcasts this program file, otherwise, stop to detect and reporting to the police.
The invention also discloses a kind of protection system of anti-malicious operation Multiway HD Telecasting System program file; comprise for the Watermark-adding unit that the program file of passing through examination is added watermark; its output links to each other with input for detection of the watermark detection unit of program file watermark, and the output of watermark detection unit links to each other with the broadcast unit that is used for the broadcast items file, the input of alarm unit respectively.
As shown from the above technical solution, program file after the present invention uploads process by the Watermark-adding unit is added watermark, if program file is by illegal replacement or modification, the watermark in the program file is inevitable destroyed so, therefore, before program file is broadcasted, can detect its watermark by watermark detection unit, if do not have watermark in the program file, watermark is incorrect or imperfect, means that namely program file is replaced or revises, system can send alarm, reminds in time and processes.
Description of drawings
Fig. 1 is the workflow diagram of Watermark-adding unit among the present invention;
Fig. 2 is the workflow diagram of watermark detection unit among the present invention;
Fig. 3 is system architecture diagram of the present invention.
Embodiment
A kind of guard method of anti-malicious operation Multiway HD Telecasting System program file, the method comprises the step of following order: (1) Watermark-adding unit adds watermark to the program file by examination; (2) before program file was broadcasted, watermark detection unit was opened the program file of adding watermark, and whether detect its watermark normal, if testing result is yes, prove that then program file is not modified and replaces, and broadcasts this program file, otherwise, stop to detect and reporting to the police.Described watermark detection unit is broadcasted this program file by broadcasting the unit after the watermark that detects program file is normal.As shown in Figure 1, 2.
As shown in Figure 1, 2, before adding watermark, open program file by examination by upper carrier unit, and read successively video, sound frame frequency and the system data of this program file, by the Watermark-adding unit video, sound frame frequency and the system data that reads added watermark again.The mode that the Watermark-adding unit carries out Watermark-adding to program file is set by the user; It is corresponding with the mode of Watermark-adding that watermark detection unit is carried out the mode of watermark detection.Before program file was broadcasted, watermark detection unit was opened the program file of adding watermark, if can't find this program file, then reported to the police immediately.
Digital watermarking (Digital Watermarking) technology is that some identification informations are directly embedded (comprising multimedia, document, software etc.) or secondary indication in the middle of the digital carrier (revising the structure of specific region), and do not affect the use value of original vector, also be not easy to be found out and again revise, but can be identified by producer and recognize.Be hidden in information in the carrier by these, can reach and confirm creator of content, buyer, transmission secret information or judge the purposes such as whether carrier is tampered.Digital watermark technology rose since early 1990s, and present has been a kind of quite ripe technology, but still is among the fast development simultaneously.
Digital watermark involves the contents such as cryptography, video coding and decoding technology, audio encoding and decoding technique, and the watermarking algorithm based on discrete cosine transform, wavelet transform and some other transform domains is arranged at present, and the small echo digital watermarking algorithm is present main flow.Different Watermark-adding modes have different robustnesss, fail safe, computational complexity, in general, the addition manner safe, that robustness is good, its computational complexity is also large, hardware performance to system requires also high, can be according to the different demand layers of user to fail safe, robustness, the coupling system hardware performance is selected suitable addition manner.
If the watermark of adding in the program file is very few, at a large amount of programme content places that does not add watermark, just may be replaced by hostile content so, the watermark of therefore adding is more, safer, but requires also higher to the hardware performance of system.Can account for the ratio of all looking audio frame to the video/audio frame that the Location of requirement needs of fail safe add watermark according to the user, ratio is higher, and fail safe is higher, but requires also higher to hardware performance simultaneously.According to the video/audio frame proportion of the interpolation watermark of customer requirements, determine whether current video audio frame and system data add watermark, if need to add watermark, then add watermark, otherwise skip.
Different Watermark-adding modes adopt different algorithm principle, therefore to select corresponding detection algorithm according to the Watermark-adding algorithm that the user sets, the watermark detection mode will be mapped one by one with the Watermark-adding mode, and the design parameter according to user's setting, for example add the video/audio frame ratio of watermark, determine the relevant parameter of watermark detection unit.
As shown in Figure 3, native system comprises for the Watermark-adding unit that the program file of passing through examination is added watermark, its output links to each other with input for detection of the watermark detection unit of program file watermark, and the output of watermark detection unit links to each other with the broadcast unit that is used for the broadcast items file, the input of alarm unit respectively.Also comprise carrier unit, its output links to each other with the input of Watermark-adding unit.
In sum, program file after the present invention uploads process by the Watermark-adding unit is added watermark, if program file is by illegal replacement or modification, the watermark in the program file is inevitable destroyed so, therefore, before program file is broadcasted, can detect its watermark by watermark detection unit, if do not have watermark in the program file, watermark is incorrect or imperfect, means that namely program file is replaced or revises, system can send alarm, reminds in time and processes.
Claims (7)
1. the guard method of an anti-malicious operation Multiway HD Telecasting System program file, the method comprises the step of following order:
(1) the Watermark-adding unit adds watermark to the program file by examination;
(2) before program file was broadcasted, watermark detection unit was opened the program file of adding watermark, and whether detect its watermark normal, if testing result is yes, then broadcasts this program file, otherwise, stop to detect and reporting to the police.
2. the guard method of anti-malicious operation Multiway HD Telecasting System program file according to claim 1; it is characterized in that: before adding watermark; open program file by examination by upper carrier unit, and read successively video, sound frame frequency and the system data of this program file
By the Watermark-adding unit video, sound frame frequency and the system data that reads added watermark again.
3. the guard method of anti-malicious operation Multiway HD Telecasting System program file according to claim 1 is characterized in that: described watermark detection unit is broadcasted this program file by broadcasting the unit after the watermark that detects program file is normal.
4. the guard method of anti-malicious operation Multiway HD Telecasting System program file according to claim 1, it is characterized in that: the mode that the Watermark-adding unit carries out Watermark-adding to program file is set by the user; It is corresponding with the mode of Watermark-adding that watermark detection unit is carried out the mode of watermark detection.
5. the guard method of anti-malicious operation Multiway HD Telecasting System program file according to claim 1; it is characterized in that: before program file is broadcasted; watermark detection unit is opened the program file of adding watermark, if can't find this program file, then reports to the police immediately.
6. the protection system of anti-malicious operation Multiway HD Telecasting System program file according to claim 1; it is characterized in that: comprise for the Watermark-adding unit that the program file of passing through examination is added watermark; its output links to each other with input for detection of the watermark detection unit of program file watermark, and the output of watermark detection unit links to each other with the broadcast unit that is used for the broadcast items file, the input of alarm unit respectively.
7. the protection system of anti-malicious operation Multiway HD Telecasting System program file according to claim 6, it is characterized in that: also comprise carrier unit, its output links to each other with the input of Watermark-adding unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210379166XA CN102857832A (en) | 2012-10-09 | 2012-10-09 | Method and system for protecting program file of malicious operation prevention hard disk playing system |
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| CN201210379166XA CN102857832A (en) | 2012-10-09 | 2012-10-09 | Method and system for protecting program file of malicious operation prevention hard disk playing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112616056A (en) * | 2020-12-18 | 2021-04-06 | 广州虎牙科技有限公司 | Reporting alarm method and device based on watermark monitoring |
| CN114915811A (en) * | 2022-03-14 | 2022-08-16 | 新奥特（北京）视频技术有限公司 | Program pre-broadcasting detection system, method and device for IP broadcasting |
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| US20070101147A1 (en) * | 2000-12-21 | 2007-05-03 | Brunk Hugh L | Methods, Apparatus and Programs for Generating and Utilizing Content Signatures |
| CN101572778A (en) * | 2008-04-28 | 2009-11-04 | 北大方正集团有限公司 | Method and system for broadcasting programs |
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| US20070101147A1 (en) * | 2000-12-21 | 2007-05-03 | Brunk Hugh L | Methods, Apparatus and Programs for Generating and Utilizing Content Signatures |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112616056A (en) * | 2020-12-18 | 2021-04-06 | 广州虎牙科技有限公司 | Reporting alarm method and device based on watermark monitoring |
| CN112616056B (en) * | 2020-12-18 | 2023-04-07 | 广州虎牙科技有限公司 | Reporting alarm method and device based on watermark monitoring |
| CN114915811A (en) * | 2022-03-14 | 2022-08-16 | 新奥特（北京）视频技术有限公司 | Program pre-broadcasting detection system, method and device for IP broadcasting |
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Address after: 230031, Anhui, Hefei Province Road No. 68, Shushan independent innovation industry base 7 8F Applicant after: Anhui Telehome Digital Technology Co., Ltd. Address before: 230031, Anhui, Hefei Province Road No. 68, Shushan independent innovation industry base 7 8F Applicant before: Anhui Telehome Digital Technology Co., Ltd. |
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Application publication date: 20130102 |