CN112714358A - Video streaming media encryption and decryption transmission method and system - Google Patents
Video streaming media encryption and decryption transmission method and system Download PDFInfo
- Publication number
- CN112714358A CN112714358A CN202011594259.5A CN202011594259A CN112714358A CN 112714358 A CN112714358 A CN 112714358A CN 202011594259 A CN202011594259 A CN 202011594259A CN 112714358 A CN112714358 A CN 112714358A
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- video stream
- encryption
- decryption
- video
- streaming media
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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]
- H04N21/40—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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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
- H04N21/4408—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
Abstract
The invention relates to the field of data encryption, in particular to a video streaming media encryption and decryption transmission method and a system, which are different in that the method comprises the following steps: step 1: acquiring real-time video stream data by a front-end IP digital camera; step 2: generating a random number key by a video stream encryption device through a random function; and step 3: acquiring the real-time video stream data through a network, and carrying out video stream encryption processing to obtain encrypted video stream data; and 4, step 4: acquiring an encryption key of the video stream encryption device by a video stream decryption device; and 5: and acquiring the encrypted video stream data through a network, and performing video stream decryption processing to obtain decrypted video stream data. The invention effectively improves the transmission safety of the video stream in the network on the premise of ensuring the real-time property of the video stream transmission.
Description
Technical Field
The present invention relates to the field of data encryption, and in particular, to a method and a system for encrypting and decrypting transmission of video streaming media.
Background
With the development of the internet, the information transmitted by the internet is more and more, and the information not only comprises text, but also comprises pictures, audio, video and other multimedia information. Especially in the security field, the transmission of video stream by adopting a real-time transmission protocol is the current mainstream scheme and is widely used. However, the real-time transport protocol only provides functions of transmission, monitoring, recovery, synchronization and the like of video streams, and does not guarantee the security of transmitted data. The security field has higher and higher requirements on data security, and the requirement of a user on encrypting video stream data is more and more common.
In view of the above, it is an urgent need in the art to provide a method and system for encrypting and decrypting transmission of video streaming media.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a video streaming media encryption and decryption transmission method and system, which effectively improve the transmission security of video streaming in a network on the premise of ensuring the real-time property of video streaming transmission.
In order to solve the technical problems, the technical scheme of the invention is as follows: a video stream media encryption and decryption transmission method and system are different in that the method comprises the following steps:
step 1: acquiring real-time video stream data by a front-end IP digital camera;
step 2: generating a random number key by a video stream encryption device through a random function;
and step 3: acquiring the real-time video stream data through a network, and carrying out video stream encryption processing to obtain encrypted video stream data;
and 4, step 4: acquiring an encryption key of the video stream encryption device by a video stream decryption device;
and 5: and acquiring the encrypted video stream data through a network, and performing video stream decryption processing to obtain decrypted video stream data.
According to the scheme, in the step 2, the video stream encryption device randomly generates a 256-bit secret key.
According to the scheme, in the step 3, the real-time video stream data of the IP digital camera is obtained through an rtsp protocol.
According to the scheme, the video stream encryption device performs XOR operation on the real-time video stream data and the secret key to perform video stream encryption processing.
According to the scheme, in the step 4, the video stream decryption device communicates with the video stream encryption device through a TCP/IP protocol.
According to the scheme, the video stream decryption device sends a key obtaining request to the video stream encryption device through a private communication protocol, so that the encryption key of the video stream encryption device is obtained.
According to the above scheme, in step 5, the video stream decryption device sends a request for obtaining the video stream to the video stream encryption device through the private communication protocol, so as to obtain the encrypted video stream data of the video stream encryption device.
According to the scheme, the video stream decryption device performs the video stream decryption processing by performing exclusive or operation on the acquired encrypted video stream data and the acquired encryption key.
A system for carrying out video stream media encryption and decryption transmission according to the scheme is characterized in that: the device comprises an IP digital camera, a video stream encryption device and a video stream decryption device, wherein the devices are in data connection by adopting an Ethernet, the IP digital camera is used for acquiring real-time video stream data, the video stream encryption device is used for video stream encryption processing, and the video stream decryption device is used for video stream decryption processing.
According to the scheme, the IP digital camera is front-end equipment, the video stream encryption device is local equipment arranged at the end part of the IP digital camera, and the video stream decryption device is equipment arranged at a user end.
Compared with the prior art, the invention has the beneficial characteristics that: according to the invention, the local video stream encryption device is deployed at the IP digital camera head end, the real-time data stream of the camera is obtained through the video stream encryption device, and the encryption processing is carried out to form the encrypted video stream. The remote video stream decryption device is deployed at the user side, the key and the encrypted video stream sent by the video stream encryption device are obtained through the video stream decryption device, the encrypted video stream is decrypted at the user side to form a decrypted video stream, and then services such as video real-time preview and storage of the user side are performed.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Many aspects of the invention are better understood with reference to the following drawings. The components in the drawings are not necessarily to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, in the several views of the drawings, like reference numerals designate corresponding parts.
The word "exemplary" or "illustrative" as used herein means serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other embodiments. All of the embodiments described below are exemplary embodiments provided to enable persons skilled in the art to make and use the examples of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. In other instances, well-known features and methods are described in detail so as not to obscure the invention. For purposes of the description herein, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," and derivatives thereof shall relate to the invention as oriented in fig. 1. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
Referring to fig. 1 and fig. 2, the technical solution of the encryption and decryption transmission method and system for video streaming media of the present invention is as follows:
s1: the video stream encryption and decryption system consists of a front-end IP digital camera, a video stream encryption device and a video stream decryption device, and all the devices are in data connection by adopting Ethernet;
s2: the video stream encryption device generates a 256-bit random number key through a random function, acquires real-time video stream data of the IP digital camera through a network, performs exclusive OR operation on the real-time video stream data and the key, and performs video stream encryption processing to obtain encrypted video stream data.
In further detail, the step S2 includes the steps of:
s21: the video stream encryption device randomly generates a secret key secretekey of 256 bits;
s22: acquiring real-time video stream data SrcStream of a front-end IP digital camera through an rtsp protocol;
s23: the encrypted video stream data DescStream is obtained by carrying out XOR operation on the real-time video stream data SrcStream and a secret key SecretKey.
S3: the video stream decryption device communicates with the video stream encryption device through a TCP/IP protocol to obtain an encryption key of the video stream encryption device, obtains encrypted video stream data DescStream of the video stream encryption device through a network, and performs video stream decryption processing by performing exclusive OR operation on the encrypted video stream data DescStream and the key SecretKey to obtain decrypted video stream data.
In further detail, the step S3 includes the steps of:
s31: establishing TCP connection with a video encryption device through a TCP/IP protocol;
s32: sending a key obtaining request to a video stream encryption device through a private communication protocol so as to obtain a video stream encryption key SecretKey of the video stream encryption device;
s33: sending a request for acquiring the video stream to a video stream encryption device through a private communication protocol so as to acquire encrypted video stream data DescStream of the video stream encryption device;
s34: and carrying out XOR operation on the acquired encrypted video stream data DescStream and the acquired encryption key SecretKey to carry out video stream decryption processing, thereby obtaining decrypted video stream data.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A video stream media encryption and decryption transmission method is characterized by comprising the following steps:
step 1: acquiring real-time video stream data by a front-end IP digital camera;
step 2: generating a random number key by a video stream encryption device through a random function;
and step 3: acquiring the real-time video stream data through a network, and carrying out video stream encryption processing to obtain encrypted video stream data;
and 4, step 4: acquiring an encryption key of the video stream encryption device by a video stream decryption device;
and 5: and acquiring the encrypted video stream data through a network, and performing video stream decryption processing to obtain decrypted video stream data.
2. The video streaming media encryption and decryption transmission method according to claim 1, wherein: in the step 2, the video stream encryption device randomly generates a 256-bit key.
3. The video streaming media encryption and decryption transmission method according to claim 1, wherein: and in the step 3, acquiring real-time video stream data of the IP digital camera through an rtsp protocol.
4. The video streaming media encryption and decryption transmission method according to claim 3, wherein: the video stream encryption device performs XOR operation on the real-time video stream data and the secret key to perform video stream encryption processing.
5. The video streaming media encryption and decryption transmission method according to claim 1, wherein: in the step 4, the video stream decryption device communicates with the video stream encryption device through a TCP/IP protocol.
6. The video streaming media encryption and decryption transmission method according to claim 5, wherein: the video stream decryption device sends a key obtaining request to the video stream encryption device through a private communication protocol, so that an encryption key of the video stream encryption device is obtained.
7. The video streaming media encryption and decryption transmission method according to claim 1, wherein: in the step 5, the video stream decryption device sends a request for obtaining the video stream to the video stream encryption device through the private communication protocol, so as to obtain the encrypted video stream data of the video stream encryption device.
8. The video streaming media encryption and decryption transmission method of claim 7, wherein: the video stream decryption device performs video stream decryption processing by performing exclusive or operation on the acquired encrypted video stream data and the acquired encryption key.
9. System for video streaming media encryption/decryption transmission according to the method of any of claims 1 to 8, characterized in that: the device comprises an IP digital camera, a video stream encryption device and a video stream decryption device, wherein the devices are in data connection by adopting an Ethernet, the IP digital camera is used for acquiring real-time video stream data, the video stream encryption device is used for video stream encryption processing, and the video stream decryption device is used for video stream decryption processing.
10. The system for encrypting and decrypting the transmission of the video streaming media according to claim 9, wherein: the IP digital camera is front-end equipment, the video stream encryption device is local equipment arranged at the end part of the IP digital camera, and the video stream decryption device is equipment arranged at a user end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594259.5A CN112714358A (en) | 2020-12-29 | 2020-12-29 | Video streaming media encryption and decryption transmission method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594259.5A CN112714358A (en) | 2020-12-29 | 2020-12-29 | Video streaming media encryption and decryption transmission method and system |
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| Publication Number | Publication Date |
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| CN112714358A true CN112714358A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011594259.5A Pending CN112714358A (en) | 2020-12-29 | 2020-12-29 | Video streaming media encryption and decryption transmission method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116405734A (en) * | 2023-06-08 | 2023-07-07 | 深圳奥联信息安全技术有限公司 | Data transmission method and system for ensuring data security |
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| CN101330353A (en) * | 2008-08-04 | 2008-12-24 | 福建师范大学 | Remote video wireless transmission system |
| CN102625148A (en) * | 2004-04-06 | 2012-08-01 | 奎瑞欧数据有限责任公司 | Process and system for the secure broadcasting of protected audiovisual streams to a dynamic group of receivers |
| US20140064485A1 (en) * | 2011-06-23 | 2014-03-06 | Bby Solutions, Inc. | Method for real-time compositing of encrypted video streams without decryption |
| CN105120200A (en) * | 2015-09-02 | 2015-12-02 | 山东省计算中心（国家超级计算济南中心） | Video communication method for Internet of Things medical system based on customized light-udp protocol |
| CN108199824A (en) * | 2018-01-18 | 2018-06-22 | 黑龙江大学 | Video encryption method and video flowing method for safety monitoring based on AES-CTR and chaos algorithm |
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2020
- 2020-12-29 CN CN202011594259.5A patent/CN112714358A/en active Pending
Patent Citations (5)
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| CN102625148A (en) * | 2004-04-06 | 2012-08-01 | 奎瑞欧数据有限责任公司 | Process and system for the secure broadcasting of protected audiovisual streams to a dynamic group of receivers |
| CN101330353A (en) * | 2008-08-04 | 2008-12-24 | 福建师范大学 | Remote video wireless transmission system |
| US20140064485A1 (en) * | 2011-06-23 | 2014-03-06 | Bby Solutions, Inc. | Method for real-time compositing of encrypted video streams without decryption |
| CN105120200A (en) * | 2015-09-02 | 2015-12-02 | 山东省计算中心（国家超级计算济南中心） | Video communication method for Internet of Things medical system based on customized light-udp protocol |
| CN108199824A (en) * | 2018-01-18 | 2018-06-22 | 黑龙江大学 | Video encryption method and video flowing method for safety monitoring based on AES-CTR and chaos algorithm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116405734A (en) * | 2023-06-08 | 2023-07-07 | 深圳奥联信息安全技术有限公司 | Data transmission method and system for ensuring data security |
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Application publication date: 20210427 |
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