CN102073972A - Anti-counterfeiting method for digital video products - Google Patents
Anti-counterfeiting method for digital video products Download PDFInfo
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- CN102073972A CN102073972A CN2009101895268A CN200910189526A CN102073972A CN 102073972 A CN102073972 A CN 102073972A CN 2009101895268 A CN2009101895268 A CN 2009101895268A CN 200910189526 A CN200910189526 A CN 200910189526A CN 102073972 A CN102073972 A CN 102073972A
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- random number
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Abstract
The invention discloses an anti-counterfeiting method for digital video products in a monitoring system. The method comprises the following steps of: pre-generating a random number sequence as required, generating a generation number sequence through a function F, and arranging and combining the products into a serial number. Because random numbers in a database are only a few numbers randomly picked from a number field (X, Y), even if the function F is found, the correct serial number is difficult to randomly generate; and the random number sequence A reselected for the products of each batch pass (A, B), and a protocol for image superposition in client software is encrypted, the anti-counterfeiting effect is more obvious. The invention has the advantages of difficulty in decryption, intuitive use, no need of querying through additional special websites or phones, and simplicity and convenience for operation.
Description
Technical field
The present invention relates to false proof field, the method for anti-counterfeit of digital video product in particular a kind of supervisory system.
Background technology
In safety defense monitoring system, digital video product plays an increasingly important role in front-end equipment, becomes the main means that monitoring image obtains, and simultaneously because the research and development of embedded product are relatively easy, the phenomenon of copying appears in therefore a lot of products easily.And all kinds of digital product great majority in the market do not have corresponding false proof measure, can only judge the true and false of product by user's experience, some product needed user will import registration code on the website of corresponding product, registration code comprises user name and sequence number, judge the true and false by web station system.
The process of registration code checking is exactly the mathematics mapping relations of verifying between user name and the sequence number in fact.These mapping relations are formulated by the deviser, so the algorithm that has a lot of sequence numbers to generate.According to the difference of mapping relations, following 4 kinds of fundamental method are arranged usually:
The user inputs user name and generates registration code, registration code with user's input compares again, formulate is: the sequence number that this method of sequence number=F (user name) is calculated occurs in internal memory with clear-text way, is easy to find in internal memory, thereby obtains registration code.This equals to have reproduced the process that generates registration code at user side, and is very dangerous.
Verify the correctness of registration code by sequence number, this is the anti-inference method of registration code computation process in fact for user name=F contrary (sequence number), if forward algorithm and inverse algorithms are not symmetry algorithms, security is higher, but the algorithm design difficulty.
Check registration code by reciprocity function, F1 (user name)=F2 (sequence number), F1, F2 are two kinds of diverse algorithms, but user name equals the tagged word that sequence number goes out by the F2 algorithm computation by the tagged word that calculates of F1 algorithm, this algorithm is fairly simple in design, and what the preceding relatively two kinds of algorithms of confidentiality also will be good is many.When F1, F2 algorithm design are become non-reversible algorithm, confidentiality is better; In a single day can find the anti-inference method of one of them, this algorithm is just dangerous.
Adopt binary function, particular value=F (user name, sequence number), the relation between user name and the sequence number is difficult searches, but also lost simultaneously the one-to-one relationship of user name and sequence number, the software developer must oneself set up database and come uniqueness between maintenance customer's name and the sequence number.
Summary of the invention
The present invention is directed to above problem, disclose a kind of method for anti-counterfeit of digital video product, comprise the steps:
Step 1: at number field (X, Y) the middle random number ordered series of numbers A (A that generates
1, A
2, A
3... A
n), wherein X＞0, Y＞X, (Y-X)＞n;
Step 2: (A B) generates random number ordered series of numbers A and random number ordered series of numbers A generates number ordered series of numbers B (B one to one by function F
1, B
2, B
3... B
n), with random number ordered series of numbers A with generate the corresponding number of number ordered series of numbers B by being combined to form new sequence number ordered series of numbers C (C
1, C
2, C
3... C
n);
Step 3: with sequence number ordered series of numbers C (C
1, C
2, C
3... C
n) in sequence number corresponding one by one with digital video product, the client who buys digital video product can obtain client software and unique sequence number, client software includes random number ordered series of numbers A, function F and anti-counterfeiting image;
Step 4: behind the subsidiary sequence number of the computer terminal input product of digital video product that client software is being installed or connection digital video product, client software is separated into sequence number random number and generates number, wherein random number of Sheng Chenging and the random number ordered series of numbers A in the client software are relatively, be included among the random number ordered series of numbers A as this random number and then enter step 5, otherwise enter step 6;
Step 5: this random number is generated number by the function F in the client software, and should generate that isolated generation number compares in number and the step 4, as showing on the identical original video that then anti-counterfeiting image is superimposed upon digital video product, otherwise enter step 6;
Step 6: the sequence number of input is superimposed upon on the original video of digital video product shows.
In the above-mentioned steps 1, preferred (Y-X)＞10n.
In the above-mentioned steps 2, random number ordered series of numbers A and the corresponding number of generation number ordered series of numbers B are arranged by front and back or every digit interval is arranged the new sequence number ordered series of numbers C of formation.
In the above-mentioned steps 6, can also be simultaneously or only from client software, access the original video that anti-counterfeiting image 2 is superimposed upon digital video product and show.
The present invention adopts serial number data storehouse and image overlay duplicate protection; fake certification information is reflected in intuitively on the image of digital video product; broken through the restriction of traditional software method for anti-counterfeit; random number can generate as required in advance; and by function F generation number; for each product permutation and combination becomes sequence number; because the random number in the database is just at number field (X; Y) random choose goes out less number in; even find function F; the correct sequence number of also difficult generation arbitrarily; and the product of each batch is all reselected random number ordered series of numbers A by (A; B) because the used agreement of image overlay in client software is encrypted, therefore antifalse effect of the present invention is more obvious.The present invention has and is difficult for cracking, uses intuitively, does not need additionally by special website or Help by Phone and operation advantage more simply and easily.
Description of drawings
Fig. 1 is that client software of the present invention and anti-counterfeiting serial numbers generate block diagram.
Fig. 2 is the use block diagram of method of the present invention.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
A kind of method for anti-counterfeit of digital video product comprises the steps:
Step 1: in 5 figure place number fields (10000,99999), generate 5 figure place random number ordered series of numbers A (A
1, A
2, A
3... A
n), n=5000 wherein;
(A B) generates (B with 5 figure place random number ordered series of numbers A, 5 figure places generation one to one number ordered series of numbers B to step 2:5 figure place random number ordered series of numbers A by function F
1, B
2, B
3... B
n), 5 figure place random number ordered series of numbers A and corresponding two 5 figure places of 5 figure places generation number ordered series of numbers B are combined to form 10 new figure place sequence number ordered series of numbers C (C by being spaced
1, C
2, C
3... C
n), as A
1=47863, generate B
1=17965, C then
1=4177896635;
Step 3: with 10 figure place sequence number ordered series of numbers C (C
1, C
2, C
3... C
n) in 10 figure place sequence numbers (as above obtain in the step: 4177896635), be printed on digital camera shell place, and every 10 unique figure place sequence numbers of digital camera housing printing, the client who buys digital camera can obtain client software and 10 unique figure place sequence numbers, and client software includes random number ordered series of numbers A, function F and anti-counterfeiting image;
Step 4: be connected and installed with the subsidiary sequence number of the keyboard input product of computing machine of digital camera of client software as the client after, client software is separated into sequence number random number and generates number, wherein random number of Sheng Chenging and the random number ordered series of numbers A in the client software are relatively, be included among the random number ordered series of numbers A as this random number and then enter step 5, otherwise enter step 6;
Step 5: this random number is generated number by the function F in the client software, and should generate that isolated generation number compares in number and the step 4, as showing on the identical original video that then anti-counterfeiting image is superimposed upon the digital camera display screen, otherwise enter step 6;
Step 6: the sequence number of input is superimposed upon on the original video of digital camera display screen showing.
Claims (4)
1. the method for anti-counterfeit of a digital video product is characterized in that: comprise the steps:
Step 1: at number field (X, Y) the middle random number ordered series of numbers A (A that generates
1, A
2, A
3... A
n), wherein X＞0, Y＞X, (Y-X)＞n;
Step 2: (A B) generates random number ordered series of numbers A and random number ordered series of numbers A generates number ordered series of numbers B (B one to one by function F
1, B
2, B
3... B
n), with random number ordered series of numbers A with generate the corresponding number of number ordered series of numbers B by being combined to form new sequence number ordered series of numbers C (C
1, C
2, C
3... C
n);
Step 3: with sequence number ordered series of numbers C (C
1, C
2, C
3... C
n) in sequence number corresponding one by one with digital video product, the client who buys digital video product can obtain client software and unique sequence number, client software includes random number ordered series of numbers A, function F and anti-counterfeiting image;
Step 4: behind the subsidiary sequence number of the computer terminal input product of digital video product that client software is being installed or connection digital video product, client software is separated into sequence number random number and generates number, wherein random number of Sheng Chenging and the random number ordered series of numbers A in the client software are relatively, be included among the random number ordered series of numbers A as this random number and then enter step 5, otherwise enter step 6;
Step 5: this random number is generated number by the function F in the client software, and should generate that isolated generation number compares in number and the step 4, as showing on the identical original video that then anti-counterfeiting image is superimposed upon digital video product, otherwise enter step 6;
Step 6: the sequence number of input is superimposed upon on the original video of digital video product shows.
2. the method for anti-counterfeit of a kind of digital video product as claimed in claim 1 is characterized in that: in the described step 1, and preferred (Y-X)＞10n.
3. the method for anti-counterfeit of a kind of digital video product as claimed in claim 1 is characterized in that: in the described step 2, and random number ordered series of numbers A and generate that the corresponding number of number ordered series of numbers B is arranged by front and back or every digit interval is arranged and formed new sequence number ordered series of numbers C.
4. the method for anti-counterfeit of a kind of digital video product as claimed in claim 1 is characterized in that: in the described step 6, and can also be simultaneously or only from client software, access the original video that anti-counterfeiting image 2 is superimposed upon digital video product and show.
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|---|---|---|---|
| CN 200910189526 CN102073972B (en) | 2009-11-20 | 2009-11-20 | Anti-counterfeiting method for digital video products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910189526 CN102073972B (en) | 2009-11-20 | 2009-11-20 | Anti-counterfeiting method for digital video products |
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| CN102073972A true CN102073972A (en) | 2011-05-25 |
| CN102073972B CN102073972B (en) | 2013-01-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997012459A1 (en) * | 1995-09-26 | 1997-04-03 | Xian Kan Lin | A method for encryption of file |
| CN1251452A (en) * | 1998-10-19 | 2000-04-26 | 海南百合数据通讯工程有限公司 | Non-reversible random function digital-code encryption anti-fake method |
| CN101102460A (en) * | 2007-07-24 | 2008-01-09 | 上海广电（集团）有限公司中央研究院 | A method for instantly adding hide information into digital TV programs |
| CN101452539A (en) * | 2008-12-12 | 2009-06-10 | 龙冬阳 | Mobile identification method based on NFC |
| CN101556654A (en) * | 2009-05-27 | 2009-10-14 | 杨志清 | Anti-counterfeiting technology for multi-variable dynamic digital signature and interactive authentication electronic tag |
-
2009
- 2009-11-20 CN CN 200910189526 patent/CN102073972B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997012459A1 (en) * | 1995-09-26 | 1997-04-03 | Xian Kan Lin | A method for encryption of file |
| CN1251452A (en) * | 1998-10-19 | 2000-04-26 | 海南百合数据通讯工程有限公司 | Non-reversible random function digital-code encryption anti-fake method |
| CN101102460A (en) * | 2007-07-24 | 2008-01-09 | 上海广电（集团）有限公司中央研究院 | A method for instantly adding hide information into digital TV programs |
| CN101452539A (en) * | 2008-12-12 | 2009-06-10 | 龙冬阳 | Mobile identification method based on NFC |
| CN101556654A (en) * | 2009-05-27 | 2009-10-14 | 杨志清 | Anti-counterfeiting technology for multi-variable dynamic digital signature and interactive authentication electronic tag |
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| Publication number | Publication date |
|---|---|
| CN102073972B (en) | 2013-01-02 |
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