CN105208404A - Video encryption and decryption method and device - Google Patents
Video encryption and decryption method and device Download PDFInfo
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- CN105208404A CN105208404A CN201510528601.4A CN201510528601A CN105208404A CN 105208404 A CN105208404 A CN 105208404A CN 201510528601 A CN201510528601 A CN 201510528601A CN 105208404 A CN105208404 A CN 105208404A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000011218 segmentation Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007596 consolidation process Methods 0.000 claims description 6
- 241001269238 Data Species 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a video encryption and decryption method and device, and belongs to the technical field of communication. The encryption method comprises the steps that all the video image frames in video data corresponding to video files are acquired; a certain number of key frame video files of all the video image frames are selected; the selected key frame video files are segmented and sliced; and the corresponding video slice files are encrypted by randomly selecting an encryption algorithm, and all the video slices are encrypted and then the encrypted video data are obtained. Problems in the prior art that server side source video files have no protection or are low in protection level are solved so that security of network transmission course video files can be greatly increased, possibility of course piracy can be reduced, and the intellectual property rights of the network course can be effectively protected.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of video-encryption, decryption method and device.
Background technology
Along with the development of the network communications technology, network bandwidth is more and more wider, and network speed is also more and more faster, and increasing student selects to carry out on-line study by the Internet.The existing video player that network courses is provided, all video datas corresponding to its network courses that can provide are kept in video server corresponding to player, after player receives play instruction, the video data extracting corresponding course from video server is play.But malicious third parties can crack it, illegal acquisition network courses video data, is undertaken propagating, selling by back door.Usurping the problem of video data in order to solve malicious third parties, usually can be encrypted video data at present.
Existing video encryption method is encrypted all video datas.Greatly, expend system resource many, and cryptographic algorithm is single, Cipher Strength is weak for encryption, decrypt operation amount.
In addition, split because encrypt file does not do, be not easy to cdn distribution, real network is play limited and cannot carry out seek operation.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of video-encryption, decryption method and device, solving the operand that exists in prior art large, expend that system resource is many, cryptographic algorithm is single and be not easy to the technical problems such as cdn distribution.
The technical solution adopted for the present invention to solve the technical problems is:
The invention provides a kind of video encryption method, described method comprises:
Obtain all video frame images in video data corresponding to video file;
Key frame quantity is set by configuration file, chooses the key frame video file of some in all video frame images (the key frame quantity namely arranged in configuration file);
The key frame video file chosen is carried out segmentation slicing treatment, becomes video segment file to be encrypted;
The one of the multiple encryption algorithms preset in random selecting configuration file is encrypted corresponding video segment file, obtains the video data after encrypting to all video segments after being encrypted.
Further, before obtaining all video frame images in video data corresponding to video file, first-selected to needing the video file be encrypted to carry out consolidation form conversion, so that subsequent slice encryption.
Further, the key frame video file chosen is carried out segmentation slicing treatment, comprising:
Create video segment listing file;
Video file is cut into slices, and corresponding slice information is write described video segment listing file.
Further, described video encryption method also comprises:
Utilize secret key group to be encrypted to the final video segment listing file obtained, ciphertext is supplied to decryption portion.
The invention provides a kind of decryption of video method, described method comprises:
Player encrypted by Network Capture after video segment listing file, obtain successfully and arrange key and custom algorithm decrypted list file acquisition listing file content according to both sides, different cipher modes according to section different in video segment listing file carry out obtaining different key, and corresponding video section is decrypted, final acquisition original video files, adds that to play queue etc. to be played.
The invention provides a kind of video-encryption device, comprising:
Transcoding module, for video to be encrypted is carried out consolidation form conversion, so that subsequent slice encryption;
Acquisition module, for obtaining all video datas corresponding to video file;
Choose module, for from the described all video frame images obtained, choose the key frame video file of some according to configuration file and slicing treatment is carried out to the file chosen, becoming video segment file to be encrypted;
Encrypting module, is encrypted for treating encrypted video section file;
Further, choose module described in comprise:
Choose unit, for choosing the key frame video file of some in all video frame images according to configuration file;
Processing unit: the key frame video file for choosing carries out segmentation slicing treatment, becomes video segment file to be encrypted.
Further, described encrypting module comprises:
Video-encryption unit, being encrypted at random according to pre-configured multiple cryptographic algorithm for treating encrypted video section file, obtaining the video segment listing file after encryption;
Key encryption unit, for utilizing secret key group to be encrypted to the video segment listing file after the encryption obtained.
Good effect of the present invention: the present invention compares traditional encryption technology, expends system resource low, little power consumption, is more suitable for the use of mobile device; CP (content supplier ContentProvider)/SP (service provider ServiceProvider) lower deployment cost is low, without the need to additional server and service software, can be better integrated with traditional cdn, configuration is simple, reduces deployment difficulty; All-network request all adopts http agreement, can firewall-penetrating, NAT, Router.The main prior art that still solves of the present invention is for service end source video file unprotect or the low problem of protection class in a word; considerably increase the fail safe of Internet communication curriculum video file; reduce the possibility of course piracy, effectively protect the intellectual property of network courses.
Accompanying drawing explanation
Fig. 1 is video-encryption flow chart in a kind of video encryption method of providing of the embodiment of the present invention 1;
Fig. 2 is key encryption flow chart in a kind of video encryption method of providing of the embodiment of the present invention 1;
Fig. 3 is secret key deciphering flow chart in a kind of decryption of video method of providing of the embodiment of the present invention 2;
Fig. 4 is decryption of video flow chart in a kind of decryption of video method of providing of the embodiment of the present invention 2;
Fig. 5 is the structural representation of a kind of video-encryption device that the embodiment of the present invention 3 provides.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
Embodiment 1
See figures.1.and.2, the preferred embodiment of the present invention 1 provides a kind of video encryption method, comprising:
First to needing the video file be encrypted to carry out consolidation form conversion, so that subsequent slice encryption;
Obtain all video frame images in video data corresponding to video file;
Key frame quantity is set by configuration file, chooses the key frame video file of some in all video frame images;
The key frame video file chosen is carried out segmentation slicing treatment, and the multiple encryption algorithms preset in random selecting configuration file is encrypted corresponding video segment file, and final acquisition encrypts rear video slice list file, and concrete steps are as follows:
First create video segment listing file, and create first video segment, and first video segment information is write described video segment listing file, random selecting encryption method, the data of first sliced section are encrypted;
Determine the original position of next video segment, video file is cut into slices, obtains second video segment, random selecting encryption method, the data of second sliced section are encrypted, afterwards the video segment information after encryption are write described video segment listing file;
Judge whether to arrive EOF position, if be less than, repeat previous step, until arrive end-of-file, obtain the video segment listing file including all videos slice information.
Utilize secret key group to be encrypted to the final video segment listing file obtained, ciphertext is supplied to decryption portion, and key encryption flow process is see Fig. 2.
Embodiment 2
With reference to Fig. 3 and Fig. 4, the preferred embodiment of the present invention 2 provides a kind of decryption of video method, comprising:
Player encrypted by Network Capture after video segment listing file, obtain successfully and arrange key and custom algorithm decrypted list file acquisition listing file content (secret key decryption portion according to both sides, see Fig. 3), different cipher modes according to section different in video segment listing file carry out obtaining different key, and (decryption of video part is decrypted to corresponding video section, see Fig. 4), final acquisition original video files, adds that to play queue etc. to be played.
Embodiment 3
With reference to Fig. 5, the preferred embodiment of the present invention 3 provides a kind of video-encryption device, comprising:
Transcoding module, for video to be encrypted is carried out consolidation form conversion, so that subsequent slice encryption;
Acquisition module, for obtaining all video datas corresponding to video file;
Choose module, for from the described all video frame images obtained, choose the key frame video file of some according to configuration file and slicing treatment is carried out to the file chosen, becoming video segment file to be encrypted, specifically comprise
Choose unit, for choosing the key frame video file of some in all video frame images according to configuration file;
Processing unit: the key frame video file for choosing carries out segmentation slicing treatment, becomes video segment file to be encrypted.
Encrypting module, being encrypted for treating encrypted video section file, specifically comprising:
Video-encryption unit, being encrypted at random according to pre-configured multiple cryptographic algorithm for treating encrypted video section file, obtaining the video segment listing file after encryption;
Key encryption unit, for utilizing secret key group to be encrypted to the video segment listing file after the encryption obtained.
Above-describedly be only the preferred embodiments of the present invention; be understood that; the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; the protection range be not intended to limit the present invention; all any amendments, equivalent replacement etc. made within thought of the present invention and principle, all should be included within protection scope of the present invention.
Claims (8)
1. a video encryption method, is characterized in that: described method comprises:
Obtain all video frame images in video data corresponding to video file;
Key frame quantity is set by configuration file, chooses the key frame video file of some in all video frame images;
The key frame video file chosen is carried out segmentation slicing treatment, becomes video segment file to be encrypted;
The one of the multiple encryption algorithms preset in random selecting configuration file is encrypted corresponding video segment file, obtains the video data after encrypting to all video segments after being encrypted.
2. a kind of video encryption method according to claim 1, it is characterized in that: before obtaining all video frame images in video data corresponding to video file, first-selected to needing the video file be encrypted to carry out consolidation form conversion, so that subsequent slice encryption.
3. a kind of video encryption method according to claim 1, is characterized in that: the key frame video file chosen is carried out segmentation slicing treatment, comprising:
Create video segment listing file;
Video file is cut into slices, and corresponding slice information is write described video segment listing file.
4. a kind of video encryption method according to claim 1, is characterized in that: also comprise:
Secret key group is utilized to be encrypted to the final video segment listing file obtained.
5. a decryption of video method, is characterized in that:
Player encrypted by Network Capture after video segment listing file, obtain successfully and arrange key and custom algorithm decrypted list file acquisition listing file content according to both sides, different cipher modes according to section different in video segment listing file carry out obtaining different key, and corresponding video section is decrypted, final acquisition original video files, adds that to play queue etc. to be played.
6. a video-encryption device, is characterized in that: comprising:
Transcoding module, for video to be encrypted is carried out consolidation form conversion, so that subsequent slice encryption;
Acquisition module, for obtaining all video datas corresponding to video file;
Choose module, for from the described all video frame images obtained, choose the key frame video file of some according to configuration file and slicing treatment is carried out to the file chosen, becoming video segment file to be encrypted;
Encrypting module, is encrypted for treating encrypted video section file.
7. a kind of video-encryption device according to claim 6, is characterized in that: described in choose module and comprise:
Choose unit, for choosing the key frame video file of some in all video frame images according to configuration file;
Processing unit: the key frame video file for choosing carries out segmentation slicing treatment, becomes video segment file to be encrypted.
8. a kind of video-encryption device according to claim 6, is characterized in that: described encrypting module comprises:
Video-encryption unit, being encrypted at random according to pre-configured multiple cryptographic algorithm for treating encrypted video section file, obtaining the video segment listing file after encryption;
Key encryption unit, for utilizing secret key group to be encrypted to the video segment listing file after the encryption obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528601.4A CN105208404A (en) | 2015-08-26 | 2015-08-26 | Video encryption and decryption method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528601.4A CN105208404A (en) | 2015-08-26 | 2015-08-26 | Video encryption and decryption method and device |
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| CN105208404A true CN105208404A (en) | 2015-12-30 |
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| CN201510528601.4A Pending CN105208404A (en) | 2015-08-26 | 2015-08-26 | Video encryption and decryption method and device |
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| CN106209896A (en) * | 2016-07-29 | 2016-12-07 | 网宿科技股份有限公司 | Streaming media encryption method based on audio frequency and video form and module |
| CN107483978A (en) * | 2017-07-19 | 2017-12-15 | 河南神州数码索贝科技有限公司 | A kind of video anti-stealing link method based on FFMPEG |
| CN108595920A (en) * | 2018-05-02 | 2018-09-28 | 中广热点云科技有限公司 | Network video listens management support rights service subsystem |
| CN108668133A (en) * | 2017-03-31 | 2018-10-16 | 鸿富锦精密工业（深圳）有限公司 | The method and device of video-encryption and decryption |
| CN108777688A (en) * | 2018-06-07 | 2018-11-09 | 中国联合网络通信集团有限公司 | Video security monitoring method and system |
| CN108882029A (en) * | 2018-06-29 | 2018-11-23 | 银河威尔科技（北京）有限公司 | A kind of decryption of video method and apparatus |
| CN108881953A (en) * | 2018-06-29 | 2018-11-23 | 银河威尔科技（北京）有限公司 | A kind of video encryption method and device |
| CN109168033A (en) * | 2018-09-25 | 2019-01-08 | 湖北工业大学 | A kind of video private data guard system and method |
| CN109348292A (en) * | 2018-11-20 | 2019-02-15 | 广州易方信息科技股份有限公司 | A kind of video segment method based on slice file byte-threshold |
| CN109525893A (en) * | 2018-11-20 | 2019-03-26 | 广州易方信息科技股份有限公司 | Video segment method based on slice file duration threshold value |
| CN110401849A (en) * | 2019-03-01 | 2019-11-01 | 腾讯科技（深圳）有限公司 | The cipher processing method and device of video data |
| CN111432287A (en) * | 2020-04-14 | 2020-07-17 | 南京巨鲨显示科技有限公司 | Slicing encryption method and system and decryption method and system for audio and video files |
| CN113285870A (en) * | 2021-06-09 | 2021-08-20 | 成都安恒信息技术有限公司 | Method and system for protecting internet chat privacy |
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| CN105721463A (en) * | 2016-02-01 | 2016-06-29 | 腾讯科技（深圳）有限公司 | File secure transmission method and file secure transmission device |
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| CN108881953A (en) * | 2018-06-29 | 2018-11-23 | 银河威尔科技（北京）有限公司 | A kind of video encryption method and device |
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| CN109168033A (en) * | 2018-09-25 | 2019-01-08 | 湖北工业大学 | A kind of video private data guard system and method |
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| CN111432287A (en) * | 2020-04-14 | 2020-07-17 | 南京巨鲨显示科技有限公司 | Slicing encryption method and system and decryption method and system for audio and video files |
| CN114257780A (en) * | 2020-09-22 | 2022-03-29 | 苏州池袋信息科技有限公司 | Intelligent security video management system and method |
| CN113285870A (en) * | 2021-06-09 | 2021-08-20 | 成都安恒信息技术有限公司 | Method and system for protecting internet chat privacy |
| CN113905258A (en) * | 2021-09-08 | 2022-01-07 | 鹏城实验室 | Video playing method, network device and storage medium |
| CN113905258B (en) * | 2021-09-08 | 2023-11-03 | 鹏城实验室 | Video playback method, network equipment and storage medium |
| CN113890759B (en) * | 2021-09-28 | 2023-10-31 | 中国电信股份有限公司 | File transmission method, device, electronic equipment and storage medium |
| CN113890759A (en) * | 2021-09-28 | 2022-01-04 | 中国电信股份有限公司 | File transfer method, device, electronic device and storage medium |
| CN114302177A (en) * | 2021-11-18 | 2022-04-08 | 中国船舶重工集团公司第七0九研究所 | Data security management method and system for streaming media storage system |
| CN114302177B (en) * | 2021-11-18 | 2024-02-06 | 中国船舶重工集团公司第七0九研究所 | Data security management method and system for streaming media storage system |
| CN114329555A (en) * | 2021-12-28 | 2022-04-12 | 中国电信股份有限公司 | Video file encryption processing method and device, storage medium and equipment |
| CN115802106A (en) * | 2022-11-15 | 2023-03-14 | 上海游密信息科技有限公司 | Video encryption transmission method and device, electronic equipment and storage medium |
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| CN116567306B (en) * | 2023-05-09 | 2023-10-20 | 北京新东方迅程网络科技有限公司 | Video recommendation method and device, electronic equipment and medium |
| CN117892293A (en) * | 2023-12-28 | 2024-04-16 | 合肥君行技术有限公司 | Security monitoring system based on Internet |
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