CN108401161A - A kind of auxiliary film carries out the processing method of Web publisher projection - Google Patents

A kind of auxiliary film carries out the processing method of Web publisher projection Download PDF

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Publication number
CN108401161A
CN108401161A CN201810338973.4A CN201810338973A CN108401161A CN 108401161 A CN108401161 A CN 108401161A CN 201810338973 A CN201810338973 A CN 201810338973A CN 108401161 A CN108401161 A CN 108401161A
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film
pixel
projection
encrypted
carries out
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CN201810338973.4A
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CN108401161B (en
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张宝全
唐立国
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Century Cinema Technology Services (beijing) Co Ltd
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Century Cinema Technology Services (beijing) Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/001—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using chaotic signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/603—Digital right managament [DRM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Studio Devices (AREA)

Abstract

The present invention relates to the processing methods that a kind of auxiliary film carries out Web publisher projection, including：The copyright of audit motion picture production side proves；Film trade network platform is established, cinema equipment is accessed；Transformation of ownership encryption is carried out automatically to film；Film and key are sent on the projection equipment of movie theatre automatically by film trade network platform；Film settlement of transactions.Auxiliary film provided by the invention carries out the processing method of Web publisher projection; to protect copyright as core; copyright is strictly audited from film source; and by encrypting the copyright to protect after transaction to film; it realizes and automatically encrypts the film transformation of ownership simultaneously; and it is transferred to the cinema equipment of access film trade network platform, greatly improve efficiency.In addition various, flexible mode of doing business is provided, the demand of different user is met, and effectively expands the sale of piece side.By cinema network transaction platform, movie resource is can make full use of, avoids the wasting of resources, the needs of practical application can be met well.

Description

A kind of auxiliary film carries out the processing method of Web publisher projection
Technical field
The invention belongs to motion picture technique fields, and in particular to a kind of auxiliary film carries out the processing side of Web publisher projection Method.
Background technology
Film is the indispensable entertainment way of people's life in modern society.With the people's material and cultural life level It improves and the rapid development of show business, the people to go to the cinema is more and more.Digital movie is also more and more, and people also get over More to like watching the digital movie on network on computers.The advantage of digital movie, which is mainly reflected in, has saved film making expense With having reformed production method, improved making level.By high-definition camera technology, realizes and integrate with high definition epoch, number Media storage keeps stable quality forever, phenomena such as being not in any abrasion, aging, is more not in shake and flicker, passes It send distribution that need not wash and reflects film, issuing cost substantially reduces, and is not in mass loss in transmission process.
Chinese festiva claps nearly thousand films, and 70% or more cannot put on show, that is, only three one-tenth or so films every year, can be with sight Crowd's meeting, more costs hundreds and thousands of ten thousand take the slice, thin piece come, are finally directly locked into warehouse, cause the huge wasting of resources.It is main If because of limited investment, no money at all is clapped later and has done propaganda distribution；The money of some even post-production is all looked for not Print has been seen to feel to make money to-investor, just resolute " losing some benefits " does not continue to invest, and can only fail before being carrying out.In addition China Film projection carry out waiting system and just shown on time, but limited by movie theatre screening, after film certain working days if movie theatre is not To screening, spectators, which want to see, does not have place to see yet, and after film lower gear, and spectators can not just watch this film in movie theatre again .
The defect of both the above method is：1, most of film fails before being carrying out because of high promotional distribution expense. 2, even most hot film, spectators can not also have viewed from movie theatre again after having spent the working days.3, film video pirate phenomenon Seriously, film copyright is unable to get protection.This undoubtedly causes the great wasting of resources.Urgently research and develop now a kind of auxiliary film into The processing method of row Web publisher projection avoids the wasting of resources so as to make full use of movie resource.
Invention content
For the above-mentioned prior art the problem of, the purpose of the present invention is to provide one kind can avoid above-mentioned skill occur The auxiliary film of art defect carries out the processing method of Web publisher projection.
In order to achieve the above-mentioned object of the invention, technical solution provided by the invention is as follows：
A kind of auxiliary film carries out the processing method of Web publisher projection, including：
Step 1：The copyright of audit motion picture production side proves；
Step 2：Film trade network platform is established, cinema equipment is accessed；
Step 3：The automatic transformation of ownership and encryption are carried out to film；According to the property of cinematographic equipment, for being shown in profession The film shown in equipment carries out the transformation of ownership and encryption in strict accordance with national standard to film；For being put on common projection equipment The film reflected, is encrypted by tailor-made algorithm；
Step 4：Film and key are sent on the projection equipment of movie theatre automatically by film trade network platform；
Step 5：Film settlement of transactions.
Further, in step 3, the algorithm that the film shown on common projection equipment is encrypted includes Following steps：
Step 1) generates key；
X is generated using Lorentz equation, y, z chaos sequences, Lorentz equation is as follows：
Dx/dt=σ (y-x), dy/dt=rx-y-xz, dz/dt=xy-bz, wherein σ, r, b are positive parameters；
After lorentz equation iteration 1,000 times, the chaos sequence of interception M*N groups { x, y, z }；M*N is the big of moving-picture frame It is small；
To each group of x of generation, y, z chaos sequences optimize,
M*N groups chaos sequence { x ', y ', z ' } is obtained after being optimized to the chaos sequence of M*N groups { x, y, z }, to sequence Each of value take its the 3rd, the 5th and the 7th to form one three decimal numbers, then by three decimal numbers with 256 carry out remainder operation, obtain 8 key streams, then obtain the ultimate key sequence { x of M*N groupsk″,yk″,zk", Middle k ∈ [1, M*N]；
A wherein frame image for film is encrypted in step 2)；
Display has executed the frame of cryptographic operation；
Step 3) repeats step 2), completes the encryption to all frames of film.
Further, to each group of x of generation, y, the formula that z chaos sequences optimize is：
X '=| x |-M (| x |), y '=| y |-M (| y |), z '=| z |-M (| z |), wherein M (| x |), which is represented, to be less than or wait In | x | maximum integer；M (| y |), which is represented, to be less than or equal to | y | maximum integer；M (| z |), which is represented, to be less than or equal to | z | most Big integer.
Further, σ=10, b=8/3, r=28.
Further, a step of wherein frame image for film being encrypted in step 2) be：
Each pixel in frame is encrypted one by one according to the following formula, completes the encryption to entire frame image；
In formula, Rk、GkAnd BkRespectively represent three component values of the pixel of current pending cryptographic operation, xk″,yk″, zk" respectively represent key sequence value corresponding with currently pixel component to be encrypted, Rk-1、Gk-1And Bk-1It is previous respectively The component value of the pixel of cryptographic operation, R ' is completedk、G’kAnd B 'kIt is after current pixel point has carried out cryptographic operation respectively Three component values；When operation is encrypted to first pixel in every frame image, R 'k-1、G’k-1And B 'k-1Value be to take R, G and B value of the last one pixel in the frame image.
Further, corresponding decryption oprerations include the following steps：
Step (1) reads the frame image in encrypted film, the value of input breaking cryptographic keys x, y, z；
Step (2) executes the step 1) during film is encrypted, and obtains the ultimate key sequence { x of M*N groupsk″, yk″,zk", wherein k ∈ [1, M*N]；
Step (3) carries out the second pixel in the encrypted frame to a last pixel to crack operation, completion pair successively The last one pixel crack operation after, the original value of the last one pixel is obtained, then to the 1st in the encrypted frame image Pixel execution cracks operation, and completion cracks full frame image；
Step (4) cracks operation to what all encrypted frame images of film executed step (3), until completion is to the solution of film It is close.
Further, the second pixel in the encrypted frame is cracked successively to a last pixel in step (3) Operation the formula that cracks be：
Further, in step 4, film and key are sent to by movie theatre by film trade network platform automatically The process of projection equipment includes the following steps：1) projection equipment of user is accessed into cinema network transaction platform；2) user buys When film, from the projection equipment of access platform, the equipment of selection reception film；3) equipment that platform is selected according to user, is obtained The device certificate needed for Making Movies key is taken, and is automatically performed film ciphering process, generates Movie Keys；4) pass through private network The film that network buys user, and the Movie Keys generated are transferred on the projection equipment of access platform.
Auxiliary film provided by the invention carries out the processing method of Web publisher projection, to protect copyright as core, from electricity Copyright is strictly audited on shadow source, and by encrypting the copyright to protect after transaction to film, while realizing and automatically turning film System encryption, and it is transferred to the cinema equipment of access film trade network platform, greatly improve efficiency.In addition provide it is various, Flexible mode of doing business meets the demand of different user, and effectively expands the sale of piece side.It is handed over by cinema network Easy platform, can make full use of movie resource, avoid the wasting of resources, can meet the needs of practical application well.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings and specific implementation The present invention will be further described for example.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to It is of the invention in limiting.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of auxiliary film carries out the processing method of Web publisher projection, including：
Step 1：The copyright of stringent audit motion picture production side proves, it is ensured that the legitimacy in film source；
Step 2：Film trade network platform is established, more movie theatres are accessed, by film trade network platform and movie theatre Projection equipment is connected, and carries out publicity popularization to film on film trade network platform；
Step 3：The automatic transformation of ownership and encryption are carried out to film；According to the property of cinematographic equipment, for being shown in profession The film shown in equipment carries out the transformation of ownership and encryption in strict accordance with national standard to film；For being put on common projection equipment The film reflected, is encrypted by tailor-made algorithm, ensures the copyright protection in film process of exchange；
Step 4：By film trade network platform automatically by film, and film automatic transformation of ownership encryption is generated close Key is sent directly on projection equipment, reduces all swivel links；
Step 5：Film settlement of transactions is carried out by film trade network platform, supports a variety of clearing forms, including in due order Purchase, according to the time period purchase give out money according to a certain proportion by box office and buy and buy out, and adapt to the demand of different user, expand the sale of piece side.
In step 3, the algorithm that the film shown on common projection equipment is encrypted includes the following steps：
Step 1) generates key；
X is generated using Lorentz equation, y, z chaos sequences, Lorentz equation is as follows：
Dx/dt=σ (y-x), dy/dt=rx-y-xz, dz/dt=xy-bz, wherein σ, r, b are positive parameters；It is preferred that σ= 10, b=8/3, r=28 can generate best chaos sequence using the Lorentz equation of three parameters；
After lorentz equation iteration 1,000 times, the chaos sequence of interception M*N groups { x, y, z }；M*N is the big of moving-picture frame It is small；
Since the value range of image pixel gray level value belongs to [0,255], so needing each group of x to generation, y, z are mixed Ignorant sequence optimizes, and optimization formula is：
X '=| x |-M (| x |), y '=| y |-M (| y |), z '=| z |-M (| z |), wherein M (| x |), which is represented, to be less than or wait In | x | maximum integer；M (| y |), which is represented, to be less than or equal to | y | maximum integer；M (| z |), which is represented, to be less than or equal to | z | most Big integer；M*N groups chaos sequence { x ', y ', z ' } is obtained after being optimized to the chaos sequence of M*N groups { x, y, z }, in sequence Each of value take its the 3rd, the 5th and the 7th to form one three decimal numbers, then by three decimal numbers and 256 Remainder operation is carried out, 8 key streams are obtained, then obtains the ultimate key sequence { x of M*N groupsk″,yk″,zk", wherein k ∈[1,M*N]；
A wherein frame image for film is encrypted in step 2)；Each pixel in frame is carried out one by one according to the following formula The encryption to entire frame image is completed in encryption；
In formula, Rk、GkAnd BkRespectively represent three component values of the pixel of current pending cryptographic operation, xk″,yk″, zk" respectively represent key sequence value corresponding with currently pixel component to be encrypted, Rk-1、Gk-1And Bk-1It is previous respectively The component value of the pixel of cryptographic operation, R ' is completedk、G’kAnd B 'kIt is after current pixel point has carried out cryptographic operation respectively Three component values；When operation is encrypted to first pixel in every frame image, R 'k-1、G’k-1And B 'k-1Value be to take R, G and B value of the last one pixel in the frame image.Display has executed the frame of cryptographic operation.
Step 3) repeats step 2), completes the encryption to all frames of film.
Corresponding decryption oprerations include the following steps：
Step (1) reads the frame image in encrypted film, the value of input breaking cryptographic keys x, y, z；
Step (2) executes the step 1) during film is encrypted, and obtains the ultimate key sequence { x of M*N groupsk″, yk″,zk", wherein k ∈ [1, M*N]；
Step (3) carries out cracking operation successively to the second pixel in the encrypted frame to a last pixel, cracks public affairs Formula is as follows,
Complete to the last one pixel crack operation after, the original value of the last one pixel is obtained, then to the encryption The 1st pixel execution in frame image cracks operation, and completion cracks full frame image；
Step (4) cracks operation to what all encrypted frame images of film executed step (3), until completion is to the solution of film It is close.
In step 4, film and key are sent to the projection equipment of movie theatre automatically by film trade network platform Process includes the following steps：1) projection equipment of user is accessed into cinema network transaction platform；2) when user buys film, from connecing In the projection equipment for entering platform, the equipment of selection reception film；3) it is close to obtain Making Movies for the equipment that platform is selected according to user Device certificate needed for key, and it is automatically performed film ciphering process, generate Movie Keys；4) user is bought by dedicated network Film, and generate Movie Keys be transferred on the projection equipment of access platform.
Auxiliary film provided by the invention carries out the processing method of Web publisher projection, to protect copyright as core, from electricity Copyright is strictly audited on shadow source, and by encrypting the copyright to protect after transaction to film, while realizing and automatically turning film System encryption, and it is transferred to the cinema equipment of access film trade network platform, greatly improve efficiency.In addition provide it is various, Flexible mode of doing business meets the demand of different user, and effectively expands the sale of piece side.It is handed over by cinema network Easy platform, can make full use of movie resource, avoid the wasting of resources, can meet the needs of practical application well.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art, Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention It encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (7)

1. a kind of auxiliary film carries out the processing method of Web publisher projection, which is characterized in that including：
Step 1：The copyright of audit motion picture production side proves；
Step 2：Film trade network platform is established, cinema equipment is accessed；
Step 3：The automatic transformation of ownership and encryption are carried out to film；
Step 4：Film and key are sent on the projection equipment of movie theatre automatically by film trade network platform；
Step 5：Film settlement of transactions.
2. it is according to claim 1 auxiliary film carry out Web publisher projection processing method, which is characterized in that for The algorithm that the film shown on common projection equipment is encrypted includes the following steps：
Step 1) generates key；
X is generated using Lorentz equation, y, z chaos sequences, Lorentz equation is as follows：
Dx/dt=σ (y-x), dy/dt=rx-y-xz, dz/dt=xy-bz, wherein σ, r, b are positive parameters；
After lorentz equation iteration 1,000 times, the chaos sequence of interception M*N groups { x, y, z }；M*N is the size of moving-picture frame；
To each group of x of generation, y, z chaos sequences optimize,
M*N groups chaos sequence { x ', y ', z ' } is obtained after being optimized to the chaos sequence of M*N groups { x, y, z }, in sequence Each value takes the decimal number of its the 3rd, the 5th and the 7th formation one three, then by three decimal numbers and 256 into Row remainder operates, and obtains 8 key streams, then obtains the ultimate key sequence { x of M*N groupsk″,yk″,zk", wherein k ∈ [1,M*N]；
A wherein frame image for film is encrypted in step 2)；
Display has executed the frame of cryptographic operation；
Step 3) repeats step 2), completes the encryption to all frames of film.
3. the auxiliary film according to claim 1-2 carries out the processing method of Web publisher projection, which is characterized in that production Each group of raw x, y, the formula that z chaos sequences optimize are：
X '=| x |-M (| x |), y '=| y |-M (| y |), z '=| z |-M (| z |), wherein M (| x |), which is represented, to be less than or equal to | x | Maximum integer；M (| y |), which is represented, to be less than or equal to | y | maximum integer；M (| z |), which is represented, to be less than or equal to | z | maximum it is whole Number.
4. the auxiliary film according to claim 1-3 carries out the processing method of Web publisher projection, which is characterized in that σ= 10, b=8/3, r=28.
5. the auxiliary film according to claim 1-4 carries out the processing method of Web publisher projection, which is characterized in that step 2) a step of wherein frame image for film is encrypted in be：
Each pixel in frame is encrypted one by one according to the following formula, completes the encryption to entire frame image；
In formula, Rk、GkAnd BkRespectively represent three component values of the pixel of current pending cryptographic operation, xk″,yk″,zk" point Not Dai Biao key sequence value corresponding with current pixel component to be encrypted, Rk-1、Gk-1And Bk-1It is previous be completed respectively The component value of the pixel of cryptographic operation, R 'k、G’kAnd B 'kIt is that current pixel point has carried out three points after cryptographic operation respectively Magnitude；When operation is encrypted to first pixel in every frame image, R 'k-1、G’k-1And B 'k-1Value be to take the frame figure R, G and B value of the last one pixel as in.
6. the auxiliary film according to claim 1-5 carries out the processing method of Web publisher projection, which is characterized in that corresponding Decryption oprerations include the following steps：
Step (1) reads the frame image in encrypted film, the value of input breaking cryptographic keys x, y, z；
Step (2) executes the step 1) during film is encrypted, and obtains the ultimate key sequence { x of M*N groupsk″,yk″, zk", wherein k ∈ [1, M*N]；
Step (3) carries out the second pixel in the encrypted frame to a last pixel to crack operation successively, completes to last One pixel crack operation after, the original value of the last one pixel is obtained, then to the 1st pixel in the encrypted frame image Execution cracks operation, and completion cracks full frame image.
Step (4) cracks operation to what all encrypted frame images of film executed step (3), until decryption of the completion to film.
7. the auxiliary film according to claim 1-6 carries out the processing method of Web publisher projection, which is characterized in that step (3) formula that cracks for carrying out cracking operation in successively to a last pixel to the second pixel in the encrypted frame is：
CN201810338973.4A 2018-04-16 2018-04-16 Processing method for assisting film to perform network release projection Active CN108401161B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150067719A1 (en) * 2013-09-05 2015-03-05 Gdc Technology (Shenzhen) Limited Method for controlling digital film play-count and a system thereof
CN106507136A (en) * 2016-10-28 2017-03-15 上海文广科技（集团）有限公司 The network operation system of two G-film G cinemas and method for running

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150067719A1 (en) * 2013-09-05 2015-03-05 Gdc Technology (Shenzhen) Limited Method for controlling digital film play-count and a system thereof
CN106507136A (en) * 2016-10-28 2017-03-15 上海文广科技（集团）有限公司 The network operation system of two G-film G cinemas and method for running

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