CN108156479B - Encryption and decryption method for video playing uri of video cloud platform - Google Patents
Encryption and decryption method for video playing uri of video cloud platform Download PDFInfo
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- CN108156479B CN108156479B CN201611108846.2A CN201611108846A CN108156479B CN 108156479 B CN108156479 B CN 108156479B CN 201611108846 A CN201611108846 A CN 201611108846A CN 108156479 B CN108156479 B CN 108156479B
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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, manipulating MPEG-4 scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 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, 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
Abstract
The invention provides a video cloud platform video playing uri encryption and decryption method, which comprises the following steps: step one, binary conversion, step two, disorder of the order of the binary base numbers, step three, playing uri of the video, converting all physical storage paths into standard formats, and step four, converting yyy-mm-dd base encryption algorithm in uri into yyyymmdd by adopting base62 algorithm and base62 binary base number expression method; and step five, carrying out uri base encryption algorithm on the flv video type file and the like. The method can keep the video smooth, is suitable for the uri encryption method, defines the video type pcf of the user, encrypts the content through the DRM, carries out encryption operation aiming at the pcf video file type uri, and protects the data security of the cloud platform.
Description
Technical Field
The invention relates to a video playing uri encryption and decryption method, in particular to a video cloud platform video playing uri encryption and decryption method.
Background
In the existing solution, the situation that the same video is played when a client watches a plurality of different videos often occurs, the last N-bit character of the uri (uniform resource identifier) which is the common point of the videos is found to be the same through investigation, and it is guessed that the operator where the client is located uses a cache strategy on our video files, so that video hijacking is caused. Meanwhile, the technical research on youtube (the largest video website in the world) and youku video websites has found that they use a technology called ShortUrl (a website shortening technology) which makes video id (video identification) short and disordered. And the existing video playing uri form: the first, flv (FLASH video) video file types uri, two, mp4 (video player) video file types uri, the uri of the flv type and mp4 type files are consistent with their physical storage paths.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a video cloud platform video playing uri encryption and decryption method, which can keep a video smooth, is simultaneously suitable for a uri encryption method, defines the video type pcf of the video cloud platform, carries out encryption operation on the content through DRM encryption aiming at the pcf video file type uri, and protects the data security of the cloud platform.
According to one aspect of the invention, a video cloud platform video playing uri encryption and decryption method is provided, which comprises the following steps:
step one, binary conversion, wherein binary system is composed of 0 and 1, octal system is composed of 0, 1, 2, 3, 4, 5, 6 and 7, decimal system is composed of 0-9, hexadecimal system is composed of 0-9 and AF, the numbers and letters of 0-1, 0-7 and 0-9 are called basic numbers of the binary system, and then 0-9, A-Z, a-z and some punctuation marks are organized into a 3-ary, 19-ary, 36-ary, 62-ary and 64-ary binary system counting method;
step two, the sequence of the base numbers of the decimal system is disturbed, so that the situation that others deduce that the 62 system of the decimal system 123456 corresponds to W7E, and the 62 system of 123457 is deduced to be: W7F, the base number of base62 is disturbed, and the corresponding base62 number of 123457 cannot be estimated;
step three, video playing uri, namely converting all physical storage paths into standard formats, so that operation is convenient;
step four, in the uri, yyy-mm-dd base encryption algorithm, adopting a base62 algorithm and a base62 system base number expression method to convert yyy-mm-dd into yyyymmdd;
fifthly, conducting uri base encryption and decryption algorithm on the flv video type file;
step six, conducting uri base encryption and decryption algorithm on the pcf video type file;
and step seven, conducting uri base encryption and decryption algorithm on the mp4 video type file.
Preferably, the first step is a base x algorithm, which is also called uri base encryption algorithm.
Preferably, the second step is an encrypted baseX algorithm.
Preferably, the uri base encryption and decryption algorithm in the fifth step, the sixth step and the seventh step includes the following steps:
analyzing information of version, base _ time, part1, part2 and qid from uri;
step nine, judging whether the version number is correct or not;
step ten, converting base _ time into a time character string;
step eleven, converting part1 into base11 numbers, and reducing the vid and the uid;
step twelve, reducing the vid, and arranging in a reverse order;
thirteen, encrypting the vid and the uid;
and fourteen, reducing the uri.
Compared with the prior art, the invention has the following beneficial effects: the method can solve the problem that the same video is played when a client watches a plurality of different videos, the videos are kept smooth, meanwhile, the method is suitable for the uri encryption method, the self-owned video type pcf is defined, the content is encrypted through DRM, the encryption operation is carried out on the pcf video file type uri, and the data security of the cloud platform is protected.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The video cloud platform video playing uri encryption and decryption method comprises the following steps:
step one, binary conversion, wherein binary system is composed of 0 and 1, octal system is composed of 0, 1, 2, 3, 4, 5, 6 and 7, decimal system is composed of 0-9, hexadecimal system is composed of 0-9 and AF, the numbers and letters of 0-1, 0-7 and 0-9 are called basic numbers of the binary system, and then 0-9, A-Z, a-z and some punctuation marks are organized into a 3-ary, 19-ary, 36-ary, 62-ary and 64-ary binary system counting method;
step two, the sequence of the base numbers of the decimal system is disturbed, so that the situation that others deduce that the 62 system of the decimal system 123456 corresponds to W7E, and the 62 system of 123457 is deduced to be: W7F, the base number of base62 is disturbed, and the corresponding base62 number of 123457 cannot be estimated;
step three, video playing uri, namely converting all physical storage paths into standard formats, so that operation is convenient;
step four, in the uri, yyy-mm-dd base encryption algorithm, adopting a base62 algorithm and a base62 system base number expression method to convert yyy-mm-dd into yyyymmdd;
step five, carrying out uri base encryption and decryption algorithm on the flv video type file, wherein the version number of the algorithm is as follows: "ca";
step six, conducting uri base encryption and decryption algorithm on the pcf video type file, wherein the version number of the algorithm is as follows: "cb";
and step seven, conducting uri base encryption and decryption algorithm on the mp4 video type file.
The first step is a base X algorithm, which is also called uri base encryption algorithm, wherein X is a number of binary systems.
And the second step is an encrypted baseX algorithm.
The uri base encryption and decryption algorithm in the fifth step, the sixth step and the seventh step comprises the following steps:
analyzing information of version, base _ time, part1, part2 and qid from uri;
step nine, judging whether the version number is correct, wherein only the version number is supported at present: "ca";
step ten, converting base _ time into a time character string;
step eleven, converting part1 into base11 numbers, and reducing the vid and the uid;
step twelve, reducing the vid, and arranging in a reverse order;
thirteen, encrypting the vid and the uid;
and fourteen, reducing the uri.
The working principle of the invention is as follows: the method comprises the steps of enabling an original url website to correspond to a unique integer i, then conducting encryption operation on the integer to obtain a short character string, splicing the short character string and a domain name together to form a short url, when the short url is visited, firstly conducting decryption on the short character string to obtain the integer i, then searching the original url website corresponding to the i and returning the integer i to a user in a redirection mode, storing the corresponding relation of the original url website and the integer i in a database mode, and replacing the i with a database table ID in order to guarantee the uniqueness of the integer i.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (3)
1. A video cloud platform video playing uri encryption and decryption method is characterized by comprising the following steps:
step one, converting a binary system, wherein the binary system is composed of 0 and 1, the octal system is composed of 0, 1, 2, 3, 4, 5, 6 and 7, the decimal system is composed of 0-9, the hexadecimal system is composed of 0-9 and AF, the numbers and letters of 0-1, 0-7 and 0-9 are called a basic number of the binary system, and then the binary system counting method of the 3 system, the 19 system, the 36 system, the 62 system and the 64 system is organized by using 0-9, A-Z, a-z and certain punctuation marks;
step two, the sequence of the base numbers of the decimal system is disturbed, so that the situation that others deduce that the 62 system of the decimal system 123456 corresponds to W7E, and the 62 system of 123457 is deduced to be: W7F, the base number of base62 is disturbed, and the corresponding base62 number of 123457 cannot be estimated;
step three, video playing uri, namely converting all physical storage paths into standard formats, so that operation is convenient;
step four, in the uri, yyy-mm-dd base encryption algorithm, adopting a base62 algorithm and a base62 system base number representation method to convert yyy-mm-dd into yyyymmdd;
fifthly, conducting uri base encryption and decryption algorithm on the flv video type file;
step six, conducting uri base encryption and decryption algorithm on the pcf video type file;
step seven, conducting uri base encryption and decryption algorithm on the mp4 video type file;
the uri base encryption and decryption algorithm in the fifth step, the sixth step and the seventh step comprises the following steps:
analyzing information of version, base _ time, part1, part2 and qid from uri;
step nine, judging whether the version number is correct or not;
step ten, converting base _ time into a time character string;
step eleven, converting part1 into base11 numbers, and reducing the vid and the uid;
step twelve, reducing the vid, and arranging in a reverse order;
thirteen, encrypting the vid and the uid;
and fourteen, reducing the uri.
2. The method for encrypting and decrypting the uri of the video cloud platform video playing according to claim 1, wherein the first step is a base x algorithm, which is also called uri base encryption algorithm.
3. The video cloud platform video playback uri encryption and decryption method according to claim 1, wherein the second step is an encrypted baseX algorithm.
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| CN201611108846.2A CN108156479B (en) | 2016-12-06 | 2016-12-06 | Encryption and decryption method for video playing uri of video cloud platform |
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| CN201611108846.2A CN108156479B (en) | 2016-12-06 | 2016-12-06 | Encryption and decryption method for video playing uri of video cloud platform |
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| CN111050213B (en) * | 2020-01-17 | 2022-08-26 | 北京达佳互联信息技术有限公司 | Video playing method and device, electronic equipment and storage medium |
| CN111698576B (en) * | 2020-06-23 | 2022-04-01 | 网易有道信息技术(杭州)有限公司 | Information encryption method, decryption method, server, client, and medium |
| CN112492352A (en) * | 2020-11-17 | 2021-03-12 | 北京慕华信息科技有限公司 | Video encryption and decryption method and device, electronic equipment and storage medium |
| CN114039801B (en) * | 2022-01-11 | 2022-04-29 | 深圳魔方网络科技有限公司 | Short link generation method, short link analysis system, short link analysis equipment and storage medium |
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| KR100842623B1 (en) * | 2005-04-19 | 2008-06-30 | 삼성전자주식회사 | System and method for processing encryption in mobile communication system |
| US8560843B1 (en) * | 2010-09-24 | 2013-10-15 | Symantec Corporation | Encrypted universal resource identifier (URI) based messaging |
| US9785787B2 (en) * | 2013-09-30 | 2017-10-10 | Juniper Networks, Inc. | Encrypting images on a client device for secure transmission and storage on a storage device |
| US9577989B2 (en) * | 2014-03-15 | 2017-02-21 | Virtru Corporation | Methods and systems for decrypting an encrypted portion of a uniform resource identifier |
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