CN105512522A - Anti-counterfeiting processing method and device for three-dimensional model file with suffix in 3ds format - Google Patents
Anti-counterfeiting processing method and device for three-dimensional model file with suffix in 3ds format Download PDFInfo
- Publication number
- CN105512522A CN105512522A CN201510849651.2A CN201510849651A CN105512522A CN 105512522 A CN105512522 A CN 105512522A CN 201510849651 A CN201510849651 A CN 201510849651A CN 105512522 A CN105512522 A CN 105512522A
- Authority
- CN
- China
- Prior art keywords
- data
- blocks
- relative position
- dimensional model
- position information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims description 18
- 108020004705 Codon Proteins 0.000 claims description 10
- 238000013480 data collection Methods 0.000 claims description 8
- 230000000644 propagated effect Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 108010001267 Protein Subunits Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
Abstract
The invention discloses an anti-counterfeiting processing method and device for a three-dimensional model file with a suffix in a 3ds format. The anti-counterfeiting processing method comprises that after a three-dimensional model file containing a block data set is created according to the 3ds format, a block data relative position modification list is established and is used for modifying next block data relative position information included by each block data in the block data set; when anti-counterfeiting processing is carried out to the three-dimensional model file with the suffix in the 3ds format, an encrypted sequence cipher generated by a copyrighter public key is used to determine the block data the next block data relative position information included by which needs to be modified; by means of the block data relative position modification list, the next block data relative position information included by the determined block data is modified; and therefore a three-dimensional model protection file with a suffix in the 3ds format is generated, and the position relation of the block data set of the three-dimensional model protection file is malposed; and the three-dimensional model protection file with the suffix in the 3ds format is spread through networks or other physical ways.
Description
Technical field
The present invention relates to three-dimensional model technical field, particularly a kind of suffix is anti-fake processing method and the device of the three-dimensional model file of 3ds form.
Background technology
Three-dimensional model refers in a computer, the object or person thing presented in three dimensions, scene, character in such as three-dimensional film, 3d gaming, three-dimensional animation, virtual reality three-dimensional applications are another information carrying forms after word, image, audio frequency, video.
The establishment of all three-dimensional model files or use, mainly take two kinds of methods: the mode utilizing computer programming at present, and such as based on OpenGL dynamic base, coding carries out the uses such as newly-built or reading, amendment to model; Utilize existing application software, with manual artificial three-dimensional modeling, such as with the artificial modeling of 3DMax or Maya software, or model is used, such as use three-dimensional model with game engines such as Untity.
The information carriers such as word, image, audio frequency, video copyright management at present academia, industrial community developed very ripe, the application of digital watermark technology, digital certificate is increasingly mature.Along with the development of new media application, academic circles at present has had part of theory research to the copyright management of three-dimensional model, but mainly concentrate on digital watermark technology aspect, due to the complicacy of three-dimensional model, when whose win application of numeral is with three-dimensional model, watermark inevitably receives the no physical attacks such as model rotation, convergent-divergent, displacement, material change, light conversion, the robustness of watermark can not get ensureing, so the originality of three-dimensional model or copyright management also only rest on scientific paper conceptual phase.
Summary of the invention
The object of the present invention is to provide a kind of suffix to be anti-fake processing method and the device of the three-dimensional model file of 3ds form, solve the problem that the originality of 3ds three-dimensional model in prior art or copyright management cannot be protected.
According to an aspect of the present invention, provide the anti-fake processing method that a kind of suffix is the three-dimensional model file of 3ds form, comprise the following steps:
After comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data;
When the three-dimensional model file to described suffix being 3ds carries out false proof process, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate;
Utilize described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generate its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds;
Suffix described in being propagated by network or other physics modes is the three-dimensional model protected file of 3ds.
Preferably, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.
Preferably, described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
Preferably, described utilizes described blocks of data relative position amendment table, and the next blocks of data relative position information comprised determined blocks of data is modified and comprised:
According to the value of each data bit in described ciphering sequence password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information amendment;
If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information amendment, then by searching blocks of data relative position amendment table, that determines the next blocks of data that this blocks of data comprises is modified relative position information side-play amount;
The described next blocks of data needing the blocks of data carrying out relative position information amendment to comprise is modified to from its original relative position information side-play amount and is determinedly modified relative position information side-play amount.
Preferably, also comprise:
After propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.
Preferably, described suffix is that to be reduced to described suffix be that the three-dimensional model file of 3ds comprises for the three-dimensional model protected file of 3ds by the decrypted sequences password that described utilization and described ciphering sequence codon pair are answered and described blocks of data relative position amendment table:
According to the value of each data bit in described decrypted sequences password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information reduction;
If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information reduction, then by searching blocks of data relative position amendment table, determine the original relative position information side-play amount of the next blocks of data that this blocks of data comprises;
Revert to determined original relative position information side-play amount by the described next blocks of data needing the blocks of data carrying out relative position information reduction to comprise is modified relative position information side-play amount from it, thus make described suffix be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds.
According to a further aspect in the invention, provide the false proof treating apparatus that a kind of suffix is the three-dimensional model file of 3ds form, comprising:
Set up module, for after comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data;
Determination module, during for carrying out false proof process at the three-dimensional model file to described suffix being 3ds, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate;
Relative position modified module, for utilizing described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generates its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds;
Propagation module, for by the suffix described in network or the propagation of other physics modes being the three-dimensional model protected file of 3ds.
Preferably, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.
Preferably, described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
Preferably, also comprise:
Reduction unit; for after propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.
Compared with prior art, beneficial effect of the present invention is:
The present invention is modified by the next blocks of data relative position information comprised the blocks of data of 3ds three-dimensional model; generate its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds, the originality of three-dimensional model or copyright management are protected.
Accompanying drawing explanation
The process flow diagram of Fig. 1 to be a kind of suffix that the embodiment of the present invention provides be anti-fake processing method of the three-dimensional model file of 3ds form;
The structural drawing of Fig. 2 to be a kind of suffix that the embodiment of the present invention provides be false proof treating apparatus of the three-dimensional model file of 3ds form;
The three-dimensional model schematic diagram of Fig. 3 to be suffix that the embodiment of the present invention provides be three-dimensional model file of 3ds form;
Fig. 4 is the schematic diagram of the ciphering sequence password that the embodiment of the present invention provides;
The schematic diagram of Fig. 5 to be propagation suffix that the embodiment of the present invention provides be three-dimensional model protected file of 3ds form.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
The process flow diagram of Fig. 1 to be a kind of suffix that the embodiment of the present invention provides be anti-fake processing method of the three-dimensional model file of 3ds form, as shown in Figure 1, comprises the following steps:
Step S101: after comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data;
Step S102: when the three-dimensional model file to described suffix being 3ds carries out false proof process, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate;
Step S103: utilize described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generate its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds;
Step S104: the suffix described in being propagated by network or other physics modes is the three-dimensional model protected file of 3ds.
Wherein, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.Described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
Specifically, described utilizes described blocks of data relative position amendment table, the next blocks of data relative position information comprised determined blocks of data is modified and is comprised: according to the value of each data bit in described ciphering sequence password, and the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information amendment; If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information amendment, then by searching blocks of data relative position amendment table, that determines the next blocks of data that this blocks of data comprises is modified relative position information side-play amount; The described next blocks of data needing the blocks of data carrying out relative position information amendment to comprise is modified to from its original relative position information side-play amount and is determinedly modified relative position information side-play amount.
The present invention also comprises: after propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.Wherein, the decrypted sequences password that described utilization and described ciphering sequence codon pair are answered and described blocks of data relative position amendment table, be that to be reduced to described suffix be that the three-dimensional model file of 3ds comprises for the three-dimensional model protected file of 3ds by described suffix: according to the value of each data bit in described decrypted sequences password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information reduction; If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information reduction, then by searching blocks of data relative position amendment table, determine the original relative position information side-play amount of the next blocks of data that this blocks of data comprises; Revert to determined original relative position information side-play amount by the described next blocks of data needing the blocks of data carrying out relative position information reduction to comprise is modified relative position information side-play amount from it, thus make described suffix be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds.Wherein, described decrypted sequences password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
The structural drawing of Fig. 2 to be a kind of suffix that the embodiment of the present invention provides be false proof treating apparatus of the three-dimensional model file of 3ds form, as shown in Figure 2, comprising: set up module 201, determination module 202, relative position modified module 203 and propagation module 104.Describedly set up module 201, for after comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data; Described determination module 202, during for carrying out false proof process at the three-dimensional model file to described suffix being 3ds, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate; Described relative position modified module 203, for utilizing described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generates its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds; Described propagation module 204, for by the suffix described in network or the propagation of other physics modes being the three-dimensional model protected file of 3ds.
Wherein, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.Described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
The present invention also comprises: reduction unit; for after propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.It comprises: judgment sub-unit, and for the value according to each data bit in described decrypted sequences password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information reduction; Search subelement, next blocks of data for comprising when the blocks of data corresponding to judgement needs to carry out relative position information reduction, then by searching blocks of data relative position amendment table, determine the original relative position information side-play amount of the next blocks of data that this blocks of data comprises; Relative position is atomic unit also; for reverting to determined original relative position information side-play amount by the described next blocks of data needing the blocks of data carrying out relative position information reduction to comprise is modified relative position information side-play amount from it, thus described suffix is made to be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds.Wherein, described decrypted sequences password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
Technology contents of the present invention is described in detail for embodiment below in conjunction with accompanying drawing 3 to accompanying drawing 5:
As shown in Figure 3, first, at the three-dimensional model file created according to described 3ds form, comprise blocks of data collection, wherein, the ID of the polygonal patch data that described blocks of data is concentrated is respectively 1, 2, 3, 4, 5, and be that the blocks of data relative position amendment table being used for modifying to the next blocks of data relative position information that described blocks of data concentrates each blocks of data to comprise set up by described blocks of data collection, as shown in table 1, described blocks of data relative position amendment table comprises the ID of each blocks of data, the ID of next blocks of data, original relative position information side-play amount and be modified relative position information side-play amount.
Table 1: polygonal patch Data Position exchanges table
Then, when the three-dimensional model file to described suffix being 3ds carries out false proof process, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate.Wherein, described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.As shown in Figure 4, ciphering sequence password is the ID one_to_one corresponding of 10100 and blocks of data.The ciphering sequence password that described copyright holder's PKI generates has multiple method to obtain, and can obtain, also can carry out Binary Conversion acquisition according to the hash value of digital certificate, also can obtain etc. by the binary data base prestored according to user's configuration needs.
Then, utilize described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generate its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds.According to the value of each data bit in described ciphering sequence password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information amendment, wherein, in described ciphering sequence password, the value of data bit is 1, then the next blocks of data that the blocks of data that decision block data centralization is corresponding comprises needs to carry out relative position information amendment; In described ciphering sequence password, the value of data bit is 0, then the next blocks of data that the blocks of data that decision block data centralization is corresponding comprises does not need to carry out relative position information amendment.Now, ciphering sequence password is 10100, namely blocks of data ID be 1 and 3 next blocks of data need to carry out relative position information amendment, blocks of data ID be 2,4 and 5 next blocks of data do not need to carry out relative position information amendment, then search respectively from described blocks of data relative position amendment table blocks of data ID be 1 and 3 the relative position information side-play amount that is modified be △ 3 and △ 1, the relative position information of the next blocks of data of other blocks of data remains unchanged.
Or the value of data bit is 0 in described ciphering sequence password, then the next blocks of data that the blocks of data that decision block data centralization is corresponding comprises needs to carry out relative position information amendment; In described ciphering sequence password, the value of data bit is 1, then the next blocks of data that the blocks of data that decision block data centralization is corresponding comprises does not need to carry out relative position information amendment.Now, ciphering sequence password is 10100, namely blocks of data ID be 2,4 and 5 next blocks of data need to carry out relative position information amendment, then search respectively from described blocks of data relative position amendment table blocks of data ID be 2,4 and 5 the relative position information side-play amount that is modified be △ 2, △ 4 and △ 6, the relative position information of the next blocks of data of other blocks of data remains unchanged.
Finally, suffix described in being propagated by network or other physics modes is the three-dimensional model protected file of 3ds, as shown in Figure 5, the three-dimensional model protected file that described suffix is 3ds form through network or other physics modes by transmitting terminal sends to receiving terminal, it is after the three-dimensional model protected file of 3ds form that receiving terminal receives described suffix, utilize the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.It specifically comprises: receiving terminal utilizes described decrypted sequences password 10100; determine blocks of data ID be 1 and 3 blocks of data carried out relative position amendment; blocks of data ID be 2,4 and 5 blocks of data do not carry out relative position amendment; then by search respectively in described blocks of data relative position amendment table blocks of data ID be 1 and 3 original relative position information side-play amount be △ 1 and △ 3; the relative position information of the next blocks of data of other blocks of data remains unchanged, thus makes described suffix be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds.
Described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.Wherein, ID number is positive integer N, the original relative position information side-play amount of blocks of data and be modified relative position information side-play amount can be random, incorrect bit also can be waited to revise etc.
In sum, the present invention has following technique effect:
The present invention is modified by the next blocks of data relative position information comprised the blocks of data of 3ds three-dimensional model; generate the three-dimensional model protected file of suffix as 3ds that its blocks of data integrates position relationship dislocation; when the three-dimensional model protected file that other users use suffix to be 3ds; reduction treatment must be carried out to it; obtain the three-dimensional model file that suffix is 3ds, the originality of 3ds three-dimensional model or copyright management are protected.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (10)
1. suffix is an anti-fake processing method for the three-dimensional model file of 3ds form, it is characterized in that, comprises the following steps:
After comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data;
When the three-dimensional model file to described suffix being 3ds carries out false proof process, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate;
Utilize described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generate its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds;
Suffix described in being propagated by network or other physics modes is the three-dimensional model protected file of 3ds.
2. method according to claim 1, is characterized in that, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.
3. method according to claim 2, is characterized in that, described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
4. method according to claim 3, is characterized in that, described utilizes described blocks of data relative position amendment table, and the next blocks of data relative position information comprised determined blocks of data is modified and comprised:
According to the value of each data bit in described ciphering sequence password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information amendment;
If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information amendment, then by searching blocks of data relative position amendment table, that determines the next blocks of data that this blocks of data comprises is modified relative position information side-play amount;
The described next blocks of data needing the blocks of data carrying out relative position information amendment to comprise is modified to from its original relative position information side-play amount and is determinedly modified relative position information side-play amount.
5., according to the arbitrary described method of claim 1-4, it is characterized in that, also comprise:
After propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.
6. method according to claim 5; it is characterized in that; described suffix is that to be reduced to described suffix be that the three-dimensional model file of 3ds comprises for the three-dimensional model protected file of 3ds by the decrypted sequences password that described utilization and described ciphering sequence codon pair are answered and described blocks of data relative position amendment table:
According to the value of each data bit in described decrypted sequences password, the next blocks of data that blocks of data corresponding to decision block data centralization comprises is the need of carrying out relative position information reduction;
If the next blocks of data that the blocks of data corresponding to judging comprises needs to carry out relative position information reduction, then by searching blocks of data relative position amendment table, determine the original relative position information side-play amount of the next blocks of data that this blocks of data comprises;
Revert to determined original relative position information side-play amount by the described next blocks of data needing the blocks of data carrying out relative position information reduction to comprise is modified relative position information side-play amount from it, thus make described suffix be that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds.
7. suffix is a false proof treating apparatus for the three-dimensional model file of 3ds, it is characterized in that, comprising:
Set up module, for after comprising the three-dimensional model file of blocks of data collection according to described 3ds form establishment, set up blocks of data relative position amendment table, modify for the next blocks of data relative position information concentrating each blocks of data to comprise to described blocks of data;
Determination module, during for carrying out false proof process at the three-dimensional model file to described suffix being 3ds, the blocks of data needing the next blocks of data relative position information comprised it to modify determined by the ciphering sequence password utilizing copyright holder's PKI to generate;
Relative position modified module, for utilizing described blocks of data relative position amendment table, the next blocks of data relative position information that determined blocks of data comprises is modified, thus generates its blocks of data and integrate the suffix of position relationship dislocation as the three-dimensional model protected file of 3ds;
Propagation module, for by the suffix described in network or the propagation of other physics modes being the three-dimensional model protected file of 3ds.
8. device according to claim 7, is characterized in that, described blocks of data relative position amendment table comprise the ID of each blocks of data, next blocks of data ID, original relative position information side-play amount and be modified relative position information side-play amount.
9. device according to claim 8, is characterized in that, described ciphering sequence password is binary sequence, a blocks of data of its each data bit corresponding blocks data centralization.
10., according to the arbitrary described device of claim 7-9, it is characterized in that, also comprise:
Reduction unit; for after propagate described suffix via network or other physics modes be the three-dimensional model protected file of 3ds; utilizing the decrypted sequences password and described blocks of data relative position amendment table of answering with described ciphering sequence codon pair, is that the three-dimensional model protected file of 3ds is reduced to the three-dimensional model file that described suffix is 3ds by described suffix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849651.2A CN105512522B (en) | 2015-11-27 | 2015-11-27 | A kind of suffix is the anti-fake processing method and device of the threedimensional model file of 3ds formats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849651.2A CN105512522B (en) | 2015-11-27 | 2015-11-27 | A kind of suffix is the anti-fake processing method and device of the threedimensional model file of 3ds formats |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105512522A true CN105512522A (en) | 2016-04-20 |
| CN105512522B CN105512522B (en) | 2018-08-03 |
Family
ID=55720499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510849651.2A Expired - Fee Related CN105512522B (en) | 2015-11-27 | 2015-11-27 | A kind of suffix is the anti-fake processing method and device of the threedimensional model file of 3ds formats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105512522B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138555A (en) * | 2019-05-21 | 2019-08-16 | 长沙能川信息科技有限公司 | A kind of encryption and decryption method of FBX format threedimensional model |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447070A (en) * | 2008-12-04 | 2009-06-03 | 上海大学 | Digital watermarking protection method of two-dimensional vector graph based on canonical correlation analysis |
| US20110286624A1 (en) * | 2008-02-25 | 2011-11-24 | Jong-Uk Choi | Method and apparatus for watermarking of 3d mesh model |
| CN102339456A (en) * | 2010-07-22 | 2012-02-01 | 山东大学 | Reversible watermarking apparatus of three-dimensional model and method thereof for realizing robustness on similar transformation |
| CN102622721A (en) * | 2012-03-06 | 2012-08-01 | 福建师范大学 | Three-dimensional grid model blind-watermarking method based on depth image mapping |
| CN103377455A (en) * | 2012-04-19 | 2013-10-30 | 常熟南师大发展研究院有限公司 | Three-dimensional geographic model digital watermarking method with copyright protection service orientation |
| CN103942748A (en) * | 2014-05-13 | 2014-07-23 | 英华达（上海）科技有限公司 | Protection method and system for three-dimensional model file |
-
2015
- 2015-11-27 CN CN201510849651.2A patent/CN105512522B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110286624A1 (en) * | 2008-02-25 | 2011-11-24 | Jong-Uk Choi | Method and apparatus for watermarking of 3d mesh model |
| CN101447070A (en) * | 2008-12-04 | 2009-06-03 | 上海大学 | Digital watermarking protection method of two-dimensional vector graph based on canonical correlation analysis |
| CN102339456A (en) * | 2010-07-22 | 2012-02-01 | 山东大学 | Reversible watermarking apparatus of three-dimensional model and method thereof for realizing robustness on similar transformation |
| CN102622721A (en) * | 2012-03-06 | 2012-08-01 | 福建师范大学 | Three-dimensional grid model blind-watermarking method based on depth image mapping |
| CN103377455A (en) * | 2012-04-19 | 2013-10-30 | 常熟南师大发展研究院有限公司 | Three-dimensional geographic model digital watermarking method with copyright protection service orientation |
| CN103942748A (en) * | 2014-05-13 | 2014-07-23 | 英华达（上海）科技有限公司 | Protection method and system for three-dimensional model file |
Non-Patent Citations (2)
| Title |
|---|
| 朱利利: "基于几何特征的三维模型数字水印算法研究", 《中国优秀硕士学位论文全文数据库》 * |
| 羌鑫林: "三维点云数据数字水印算法研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138555A (en) * | 2019-05-21 | 2019-08-16 | 长沙能川信息科技有限公司 | A kind of encryption and decryption method of FBX format threedimensional model |
| CN110138555B (en) * | 2019-05-21 | 2020-11-20 | 长沙能川信息科技有限公司 | Encryption and decryption method for FBX format three-dimensional model |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105512522B (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI810411B (en) | Computer implemented system and method for enabling access to data stored on a blockchain | |
| Shankar et al. | Optimal key based homomorphic encryption for color image security aid of ant lion optimization algorithm | |
| CN110809763A (en) | Identifying copyrighted material using time-stamped embedded copyright information | |
| CN112119424A (en) | Identifying copyrighted material using embedded copyright information | |
| CN107181797A (en) | The block compression method and system of a kind of block chain | |
| CN105468990A (en) | Sensitive information management control method and apparatus | |
| CN107169325A (en) | Copyright information protection, really power method, device, system and content editing device | |
| CN110914820A (en) | Identifying copyrighted material using embedded copyright information | |
| CN111183423A (en) | Identifying copyrighted material using copyright information embedded in an electronic file | |
| JP3256180B2 (en) | Method for encrypting and decrypting three-dimensional shape data | |
| Peng et al. | Secure and traceable copyright management system based on blockchain | |
| CN105721156A (en) | General Encoding Functions For Modular Exponentiation Encryption Schemes | |
| CN110809762A (en) | Identifying copyrighted material using embedded copyright information | |
| CN108737444A (en) | Micro services authorization management method and device applied to intelligent robot | |
| CN105512522A (en) | Anti-counterfeiting processing method and device for three-dimensional model file with suffix in 3ds format | |
| CN105488360A (en) | Anti-fake processing method and device of three-dimensional model file with fbx format postfix | |
| CN112818404A (en) | Data access permission updating method, device, equipment and readable storage medium | |
| CN105488362A (en) | Anti-counterfeiting processing method and apparatus for three-dimensional model file with obj-format suffix | |
| CN105608147B (en) | A kind of method and device of hiding picture original address | |
| CN109146477B (en) | Method for specifying address when Ethernet workshop issues intelligent contract | |
| CN113098843B (en) | High-speed random sampling encryption method for geological and geographical big data | |
| CN103297962B (en) | A kind of opportunistic network routing method based on encryption fuzzy keyword and system | |
| CN107580003A (en) | Safe no certificate can search for public key cryptography scheme under industrial environment of internet of things | |
| Parmar et al. | Stego Dog: Image Steganography Tool for Confidentiality and Integrity | |
| Vegh et al. | Access control in cyber-physical systems using steganography and digital signatures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20211127 |