CN111954071B - End-to-end full-link video playing encryption technology and authority control method - Google Patents
End-to-end full-link video playing encryption technology and authority control method Download PDFInfo
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- CN111954071B CN111954071B CN202010813923.4A CN202010813923A CN111954071B CN 111954071 B CN111954071 B CN 111954071B CN 202010813923 A CN202010813923 A CN 202010813923A CN 111954071 B CN111954071 B CN 111954071B
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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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440245—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/214—Generating training patterns; Bootstrap methods, e.g. bagging or boosting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/04—Architecture, e.g. interconnection topology
- G06N3/045—Combinations of networks
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
Abstract
The invention discloses a video playing encryption technology and an authority control method of an end-to-end full link, which comprises the following steps: s01: establishing a region of interest model using the particular data set; s02: preprocessing a video, and converting video data into a video frame sequence; s03: extracting a special area of the video by using the region-of-interest model; s04: and encrypting the video area which is not extracted and the special area which is extracted by adopting encryption algorithms with different security levels to obtain encrypted video data. According to the end-to-end full-link video playing encryption technology and the authority control method, the special area in the video is extracted by establishing the region-of-interest model, and then the special area extracted from the video and the common area which is not extracted relative to the special area are respectively encrypted by using the encryption algorithms with different security levels, so that the encryption security is improved in a maximized manner, and the cracking difficulty is increased.
Description
Technical Field
The invention relates to the technical field of video processing, in particular to an end-to-end full-link video playing encryption technology and an authority control method.
Background
Video generally refers to various techniques for capturing, recording, processing, storing, transmitting, and reproducing a series of still images as electrical signals. When the continuous image change exceeds 24 frames (frames) of pictures per second, the pictures are called videos according to the principle of persistence of vision. Video technology was originally developed for television systems, but has now evolved into a variety of different formats to facilitate consumer recording of video. Advances in networking technology have also enabled recorded segments of video to be streamed over the internet and received and played by computers. Video is a different technology than movies, which use photography to capture moving images as a series of still photographs, and video can be recorded and transmitted via different physical media: an electrical signal when the video is photographed or transmitted by radio, and a magnetic signal when the video is recorded on a magnetic tape; the video quality actually varies with the way of capture and the way of storage. For example, Digital Television (DTV) is a developed format, has higher picture quality than the previous standard, and is becoming a new standard for tv broadcasting in various countries.
However, the existing video playing encryption generally adopts a single encryption algorithm for encryption, and encryption algorithms of different levels are not respectively adopted for encryption in a special area and a common area in a video, so that the security is low, and then the single mode of acquiring a secret key is adopted for authority control, so that the control mode is single, and the requirements of users cannot be met.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an end-to-end full-link video playing encryption technology and an authority control method.
In order to achieve the purpose, the invention adopts the following technical scheme: an end-to-end full-link video playing encryption technology and an authority control method comprise the following steps:
s01: establishing a region of interest model using the particular data set;
s02: preprocessing a video, and converting video data into a video frame sequence;
s03: extracting a special area of the video by using the region-of-interest model;
s04: encrypting the video area which is not extracted and the special area which is extracted by adopting encryption algorithms with different security levels to obtain encrypted video data;
s05: generating a data packet by the encrypted video data and sending the data packet to a destination node through a network based on an RLNC algorithm;
s06: and the destination node applies for a key and a certificate from a third party according to the authority of the destination node, so as to decrypt and receive the video.
As a further description of the above technical solution:
in step S01, the step of establishing a region of interest model using the specific data set includes the following steps:
s01.1: establishing an interested area model by using an interested data set and a Faster R-CNN network training video;
s01.2: the Faster R-CNN uses the Region Proposal Network to generate candidate windows.
As a further description of the above technical solution:
in step S03, the extracted special areas include an image of a single special area and an image of multiple special areas.
As a further description of the above technical solution:
in step S03, when the special area of the video is extracted, an image including a single special area and an image including multiple special areas are selected through the candidate window, and then the selected image is compared with the established region-of-interest model, and it is determined whether the selected image including the single special area and the selected image including the multiple special areas are the special area of the video, and the selected image including the single special area and the selected image including the multiple special areas are in accordance with the special area of the video.
As a further description of the above technical solution:
in step S04, the extracted video in the special region is encrypted by using an encryption algorithm based on the hyper-chaotic system and the pixel information association, and the extracted video in the non-special region is encrypted by using a GF (17) domain diffusion encryption algorithm based on the plaintext association.
As a further description of the above technical solution:
the destination node of step S05 is composed of three parts, which are a content server, a license server and a client.
As a further description of the above technical solution:
in step S04, in order to increase the speed of video encryption, the video encryption and the distributed computation are combined, and the advantage of the distributed computation is used to increase the speed of encryption.
As a further description of the above technical solution:
in step S03, in order to improve the accuracy of extracting the special region, the special region of the video extracted by the region-of-interest model is combined with the latest target tracking technology, so as to reduce the complexity of extracting the special region and shorten the video encryption time.
The invention provides an end-to-end full-link video playing encryption technology and an authority control method. The method has the following beneficial effects:
(1) according to the end-to-end full-link video playing encryption technology and the authority control method, the special area in the video is extracted by establishing the region-of-interest model, and then the special area extracted from the video and the common area which is not extracted relative to the special area are encrypted by using the encryption algorithms with different security levels respectively, so that the encryption security is improved maximally, and the difficulty in cracking is increased.
(2) According to the end-to-end full link video playing encryption technology and the authority control method, the user node comprises the content server, the license server and the client, the client needs to apply for the combination of the key and the license certificate to decode and receive the video, the received video areas are different through different grades of the obtained license certificate and the key, the difference of video obtaining authority is guaranteed, and the safety of the video is further improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
An end-to-end full-link video playing encryption technology and an authority control method comprise the following steps:
s01: establishing a region of interest model using the particular data set;
s02: preprocessing a video, and converting video data into a video frame sequence;
s03: extracting a special area of the video by using the region-of-interest model;
s04: encrypting the video area which is not extracted and the special area which is extracted by adopting encryption algorithms with different security levels to obtain encrypted video data;
s05: generating a data packet by the encrypted video data and sending the data packet to a destination node through a network based on an RLNC algorithm;
s06: and the destination node applies for a key and a certificate from a third party according to the authority of the destination node, so as to decrypt and receive the video.
In step S01, the modeling of the region of interest using the specific data set includes the following steps:
s01.1: establishing an interested area model by using an interested data set and a Faster R-CNN network training video;
s01.2: the Faster R-CNN uses the Region Proposal Network to generate candidate windows.
In step S03, the extracted special area includes an image of a single special area and an image of multiple special areas.
In step S03, when the special area of the video is extracted, an image including a single special area and an image including multiple special areas are selected through the candidate window, and then the selected image is compared with the established region-of-interest model, and it is determined whether the selected image including the single special area and the selected image including the multiple special areas are video special areas that correspond to the video special areas, and the selected image including the single special area and the selected image including the multiple special areas are extracted, and if the selected image including the single special area and the selected image including the multiple special areas do not correspond to the video special areas, the selected image including the single special areas and the selected image including the multiple special areas are not extracted.
In step S04, the extracted video in the special region is encrypted by using an encryption algorithm based on the hyper-chaotic system and the pixel information association, and the extracted video in the non-special region is encrypted by using a GF (17) domain diffusion encryption algorithm based on the plaintext association.
The destination node of step S05 is composed of three parts, which are a content server, a license server, and a client, respectively.
In step S04, in order to increase the speed of video encryption, video encryption and distributed computation are combined, and the advantage of distributed computation is used to increase the speed of encryption.
In step S03, in order to improve the accuracy of extracting the special region, the special region of the video extracted by the region-of-interest model is combined with the latest target tracking technology, so as to reduce the complexity of extracting the special region and shorten the video encryption time.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. An end-to-end full-link video playing encryption technology and an authority control method are characterized by comprising the following steps:
s01: establishing a region of interest model using the particular data set;
s02: preprocessing a video, and converting video data into a video frame sequence;
s03: extracting a special area of the video by using the region-of-interest model;
s04: encrypting the video area which is not extracted and the special area which is extracted by adopting encryption algorithms with different security levels to obtain encrypted video data;
s05: generating a data packet by the encrypted video data and sending the data packet to a destination node through a network based on an RLNC algorithm;
s06: and the destination node applies for a key and a certificate from a third party according to the authority of the destination node, so as to decrypt and receive the video.
2. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: in step S01, the step of establishing a region of interest model using the specific data set includes the following steps:
s01.1: establishing an interested area model by using an interested data set and a Faster R-CNN network training video;
s01.2: the Faster R-CNN uses the Region Proposal Network to generate candidate windows.
3. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: in step S03, the extracted special areas include an image of a single special area and an image of multiple special areas.
4. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: in step S03, when the special area of the video is extracted, an image including a single special area and an image including multiple special areas are selected through the candidate window, and then the selected image is compared with the established region-of-interest model, and it is determined whether the selected image including the single special area and the selected image including the multiple special areas are the special area of the video, and the selected image including the single special area and the selected image including the multiple special areas are in accordance with the special area of the video.
5. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: in step S04, the extracted video in the special region is encrypted by using an encryption algorithm based on the hyper-chaotic system and the pixel information association, and the extracted video in the non-special region is encrypted by using a GF (17) domain diffusion encryption algorithm based on the plaintext association.
6. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: the destination node of step S05 is composed of three parts, which are a content server, a license server and a client.
7. The end-to-end full-link video playing encryption technology and authority control method according to claim 1, characterized in that: in step S04, in order to increase the speed of video encryption, the video encryption and the distributed computation are combined, and the advantage of the distributed computation is used to increase the speed of encryption.
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| CN114915805B (en) * | 2022-07-18 | 2022-11-08 | 广州万协通信息技术有限公司 | Video stream transmission method based on double encryption mechanism and security chip device |
| CN117061794B (en) * | 2023-10-12 | 2024-02-13 | 深圳市迪威泰实业有限公司 | Bank monitoring camera with data encryption protection function and monitoring method thereof |
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| US20090067626A1 (en) * | 2005-11-04 | 2009-03-12 | Emittall Surveillance S.A. | Region-based transform domain video scrambling |
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