CN106940860B - Anti-counterfeiting verification method for two-dimensional code - Google Patents
Anti-counterfeiting verification method for two-dimensional code Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
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Abstract
The invention discloses a two-dimensional code anti-counterfeiting verification method, which is characterized by comprising the following steps of: 1. generating a two-dimensional code; 2. preliminarily judging the authenticity of the two-dimensional code to be verified; 3 obtaining the scanning time and the scanning place; 4, judging the authenticity of the source code to be verified; 5. and judging the authenticity of the verification code to be detected. The invention can quickly and stably generate a large number of two-dimensional codes which have high anti-counterfeiting property and are difficult to imitate, thereby effectively ensuring the uniqueness of the two-dimensional codes and preventing the two-dimensional codes from being copied or reused.
Description
The application is as follows: 24 days 10 and 2014, with application numbers as follows: 2014105779765, the name is: a two-dimensional code generation method and a divisional application of application thereof are provided.
Technical Field
The invention relates to the technical field of two-dimensional code anti-counterfeiting, in particular to an anti-counterfeiting verification method for a two-dimensional code.
Background
At present, the anti-counterfeiting means based on the two-dimensional code adopts a scanning and inputting mode more: downloading and installing a specified mobile phone client, scanning the two-dimensional code through the mobile phone client to be linked to a corresponding website verification interface, inputting a verification code in the opened verification interface, completing the verification work of the authenticity of the verification code by the server, and returning verification result information to the client to complete the verification of the authenticity of the product. The anti-counterfeiting means has the limitations:
1. the authenticity of the product is verified through one verification code, the method is single, and the anti-counterfeiting means is simple.
2. The appointed mobile phone client needs to be downloaded and installed, and the verification code needs to be manually input by a consumer, so that time and labor are wasted.
3. The two-dimensional code and the verification code are easy to copy and reuse.
Disclosure of Invention
The invention provides an anti-counterfeiting verification method of a two-dimensional code, aiming at overcoming the defects in the prior art, and the anti-counterfeiting verification method can quickly and stably generate a large number of two-dimensional codes which have high anti-counterfeiting property and are difficult to counterfeit, thereby effectively ensuring the uniqueness of the two-dimensional codes and preventing the two-dimensional codes from being copied or reused.
The invention adopts the following technical scheme for solving the technical problems:
the invention relates to an anti-counterfeiting verification method of a two-dimensional code, which is characterized by comprising the following steps:
step one, generating a two-dimensional code:
step 2, generating a source tracing code;
step 2.1, obtaining the interval length R of the tracing code by using the formula (1)l；
In formula (1), l represents the length of the traceable code; n represents hydrogenThe number of said tracing codes RmaxRepresents the maximum value of the random function Rand ();
step 2.2, generating the ith traceability code R by using the formula (2)i：
Ri＝(i-1)×Rl+Rand(Rl)1≤i≤n (2)
Step 3, generating a prefix code;
setting an access website url and a user-defined parameter, and forming the prefix code by the access website url and the user-defined parameter;
step 4, generating a Y-bit verification code;
step 4.1, setting a one-dimensional array Arr [ ];
the elements of the one-dimensional array Arr [ ] are composed of letters and numbers, and the length of the one-dimensional array Arr [ ] is defined to be L;
step 4.2, generating a random number m by using a random function rand (L); obtaining the m-1 element Arr [ m-1] in the one-dimensional array Arr [ ] from the random number m; m is more than or equal to 1 and less than or equal to L;
step 4.3, repeating the step 4.2 for Y times, thereby obtaining the ith source tracing code RiA corresponding Y-bit verification code;
step 5, the ith traceability code R is usediStoring the prefix code and the Y-bit verification code into an anti-counterfeiting database, and storing the ith tracing code RiCombining the initial two-dimensional code with the prefix code and then generating an ith initial two-dimensional code by using a bar code generator; embedding the Y-bit verification code into the middle position of the ith initial two-dimensional code to form an ith two-dimensional code;
step 6, assigning the i +1 to the i and returning to the step 2.2 to execute until n two-dimensional codes are obtained;
step two, preliminarily judging the authenticity of the two-dimensional code to be verified:
judging whether the middle position of the two-dimensional code to be verified contains a verification code to be verified or not; if not, the two-dimensional code to be verified is represented as a pseudo code, otherwise, the two-dimensional code to be verified is scanned to obtain a scanning result of the two-dimensional code to be verified, whether the scanning result contains the access website url is judged, and if not, the two-dimensional code to be verified is represented as a pseudo code; otherwise, reading the source tracing code to be verified in the scanning result and executing the third step;
step three, obtaining scanning time and scanning place:
jumping to a corresponding anti-counterfeiting website according to the visited website url, and acquiring scanning time and a scanning place formed by longitude and latitude information by utilizing an inquiry function provided by the anti-counterfeiting website; extracting a source code to be verified from the two-dimensional code to be verified; forming a code scanning record by the scanning time, the scanning place and the source tracing code to be verified and storing the code scanning record into a code scanning database;
step four, judging the authenticity of the source code to be verified:
comparing the traceability codes to be verified with traceability codes in the anti-counterfeiting database one by one, and if the comparison is successful, obtaining the traceability codes to be verified as traceability codes RiAnd executing the step five, otherwise, indicating that the two-dimensional code to be verified is a pseudo code;
step five, judging the authenticity of the verification code to be verified:
according to the tracing code RiObtaining a corresponding ith Y-bit verification code from the anti-counterfeiting database; comparing the verification code to be verified with the ith Y-bit verification code, and if the comparison is successful, indicating that the two-dimensional code to be verified is a true code; otherwise, the two-dimensional code to be verified is a pseudo code.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention generates a complex two-dimensional code which is difficult to imitate by using a random function random code generation method, ensures the uniqueness and the randomness of each generated two-dimensional code, increases the difficulty of analyzing the two-dimensional code, and solves the problems that the two-dimensional code is easy to copy and reuse in the prior art;
2. according to the invention, through scanning by a code scanning tool, a url website is displayed in a mobile phone browser or other built-in browser software, so that the problem that a user needs to download and install a specific mobile phone client in the prior art is solved, manual input is not needed, the user experience is improved, and the convenience is improved;
3. according to the method, the stability and the high efficiency of generating the two-dimensional code are ensured through a relatively stable windows system platform and a mature c # language development technology in the prior art, so that the two-dimensional code with large data volume can be generated quickly and stably;
4. according to the invention, the tracing code and the verification code are randomly generated through the random function, and both the tracing code and the verification code have randomness and no traceable rule, so that large-batch counterfeiting can not be carried out according to the rule, and the particularity and the difficult counterfeiting property of the two-dimensional code are improved;
5. according to the invention, the product two-dimensional code is scanned, the verification code, the prefix code and the traceability code are compared with the database layer by layer, multiple verification is performed, triple anti-counterfeiting guarantee is provided, the real reliability of the product two-dimensional code is improved, the anti-counterfeiting means is complex, the anti-counterfeiting coefficient is high, and the problems that the authenticity of a product is verified by one verification code, the method is single and the anti-counterfeiting means is simple in the prior art are solved;
6. according to the invention, the final sale information of the code scanning product can be inquired by recording and counting the code scanning time, the code scanning times and the scanning places, whether the two-dimensional code is copied and forged and the copying and forging severity are accurately and strictly judged for the tracing code of the genuine product copied and forged by lawbreakers through the code scanning times and the calculation of the maximum distance value between different code scanning places, the risk grade early warning is carried out on the copying and forging degree, a corresponding solution is reasonably provided, and the anti-counterfeiting reliability based on the two-dimensional code is improved.
Drawings
FIG. 1 is a flow chart of a two-dimensional code anti-counterfeiting verification method for determining to-be-verified according to the invention;
FIG. 2 is a flow chart of the anti-counterfeiting verification method using the two-dimensional code according to the present invention.
Detailed Description
In this embodiment, a method for generating a two-dimensional code is performed according to the following steps:
step 2, generating tracing codes in batches;
step 2.1, obtaining the interval length R of the tracing code by using the formula (1)l；
In the formula (1), l represents the length of the traceback code; n represents the number of generated traceback codes, RmaxRepresents the maximum value of the random function Rand ();
assuming that the length l of the trace source code is 9, the trace source code is generated from 000000000 to 99999999, that is, 1000000000 trace source codes at most are generated; assuming that the product needs to generate 10 ten thousand source codes, i.e. n equals 100000, the interval length is calculated by equation (1)
The example is operated in windows environment, and takes the maximum value R of the random function Rand ()max32767, judge
Get Rl10000, namely 1 tracing code is randomly and irregularly generated from 10000 tracing codes;
step 2.2, generating the ith traceability code R by using the formula (2)i：
Ri＝(i-1)×Rl+Rand(Rl)1≤i≤n (2)
In this embodiment, when i is equal to 1, assuming that Rand (10000) is 3472, the first traceable code R is obtained according to equation (2)1000003472, obtaining n 100000 tracing codes { R by loop calculation1,R2,R3,...,Ri,...,R100000Due to the difference of i, the generated tracing source codes are different; tracing code and tracing code R for product counterfeitingiThe same probability is
The probability that 100000 tracing codes are all the same is
Thereby ensuring the anti-counterfeiting strength of the final two-dimensional code;
step 3, generating a prefix code;
setting an access website url and a user-defined parameter, and forming a prefix code by the access website url and the user-defined parameter; the visited website url is a website corresponding to a jump interface after the two-dimensional code is scanned, and the self-defined parameters are parameters added according to user requirements; for example, the prefix code is http:// www.seediot.com/sy. m 48600147-;
step 4, generating a Y-bit verification code;
step 4.1, setting a one-dimensional array Arr [ ];
defining the length of a one-dimensional array Arr [ ] as L; in this example, the elements of the one-dimensional array Arr [ ] are composed of twenty-six upper and lower case letters and ten digit arabic numbers, and the length L of the one-dimensional array Arr [ ] is 62; sequentially storing twenty-six upper and lower case letters and ten-digit Arabic numerals in a one-dimensional array Arr [ ], namely Arr [0] ═ a, Arr [1] ═ b, Arr [2] ═ c, …, Arr [60] ═ 8, and Arr [61] ═ 9;
step 4.2, generating a random number m by using a random function rand (L); obtaining m-1 element Arr [ m-1] in one-dimensional array Arr [ ] from random number m; m is more than or equal to 1 and less than or equal to L; in the present example, assuming that the random number m generated by the random function Rand (62) is 3, the corresponding one-dimensional array Arr [ m-1] represents the 2 nd element Arr [2] ═ c in the one-dimensional array Arr [ ];
step 4.3, repeating the step 4.2 for Y times, thereby obtaining the ith source tracing code RiA corresponding Y-bit verification code; in this example, Y is taken as 4, and step 4.2 is repeatedly performed 4 times, assuming that the four-digit verification code obtained when i is equal to 1 is c2a1, and the tracing code R generated in step 21Correspondingly, the anti-counterfeiting strength is further increased;
step 5, the ith source tracing code RiStoring the prefix code and the Y-bit verification code into an anti-counterfeiting database, and storing the ith tracing code RiMerging with the prefix code, generating the ith initial two-dimensional code by using a bar code generator, and verifying Y bitsEmbedding the code into the middle position of the ith initial two-dimensional code so as to form an ith two-dimensional code; in this embodiment, it is assumed that when i ═ 1, the first initial two-dimensional code is http:// www.seediot.com/sy. m is 48600147-;
and 6, assigning the i +1 to the i and returning to the step 2.2 to execute until n two-dimensional codes are obtained, wherein in the example, the execution needs to be circulated for 1000000 times, and finally the needed 1000000 two-dimensional codes are obtained.
As shown in fig. 1, an anti-counterfeiting verification method for a two-dimensional code is performed according to the following steps:
judging whether the middle position of the two-dimensional code to be verified contains the verification code to be verified; if not, the two-dimensional code to be verified is represented as a pseudo code, otherwise, the two-dimensional code to be verified is scanned to obtain a scanning result of the two-dimensional code to be verified, whether the scanning result contains an access website url is judged, and if not, the two-dimensional code to be verified is represented as a pseudo code; otherwise, reading the source tracing code to be verified in the scanning result and executing the step 2;
in the specific implementation, whether a four-digit verification code exists in the middle position of a two-dimensional code to be verified or not is observed through naked eyes, the two-dimensional code to be verified which does not contain the four-digit verification code is judged as a pseudo code to be preliminarily filtered, the two-dimensional code to be verified containing the four-digit verification code is scanned, if the two-dimensional code to be verified can not jump to a security website http:// www.seediot.com/sy.html corresponding to an access website url, the two-dimensional code to be verified does not contain the access website url, and the pseudo code is judged and filtered;
step 2, obtaining scanning time and scanning place:
jumping to a corresponding anti-counterfeiting website according to an accessed website url, and obtaining scanning time and a scanning place formed by longitude and latitude information by utilizing an inquiry function provided by the anti-counterfeiting website, in the example, obtaining the longitude and latitude by utilizing a geocation function in an html5 interface and obtaining a result from a two-dimensional code to be verified http:// www.seediot.com/sy. Extracting a source code 000003472 to be verified from 48600147-500001145Q 000003472; a code scanning record is formed by scanning time, a scanning place and a source tracing code to be verified and is stored in a code scanning database;
step 3, judging the authenticity of the source code to be verified:
comparing the traceability codes to be verified with traceability codes in the anti-counterfeiting database one by one, and if the comparison is successful, obtaining the traceability codes to be verified as traceability codes RiAnd executing the step 4, otherwise, indicating that the two-dimensional code to be verified is a pseudo code; if the i is equal to 1, the traceability code to be verified is 000003472, and the traceability code R is found by comparing the traceability codes in the anti-counterfeiting database one by one1When the code is 000003472, the source code to be verified is R1；
Step 4, judging the authenticity of the verification code to be detected:
according to the tracing code RiObtaining a corresponding ith Y-bit verification code from an anti-counterfeiting database; comparing the verification code to be verified with the ith Y-bit verification code, and if the comparison is successful, indicating that the two-dimensional code to be verified is a true code; otherwise, the two-dimensional code to be verified is a pseudo code;
suppose that when i is equal to 1, the verification code to be verified is c2a1, passing through the tracing code R1000003472, obtaining the corresponding 1 st four-digit verification code c2A1 from the anti-counterfeiting database, comparing successfully with the verification code to be verified, and showing that the two-dimensional code is a true code.
As shown in FIG. 2, an anti-counterfeiting verification method using two-dimensional codes utilizes a traceability code RiAnd risk early warning is carried out according to the following steps:
step 2, because the situation of personal multiple scanning exists, risk early warning is not carried out on multiple code scanning at a distance less than a certain distance; according to the tracing source code R in the concrete implementationiScanning code record to obtain tracing code RiAssuming that one of the scanning places is point A and the other scanning place is point B, the latitude and longitude information of all the scanning places is that point AjIndicates the longitude of point A, AwIndicates the latitude of the point A, BjIndicates the longitude of point B, BwExpressing the latitude of the point B, calculating the value of the distance d between the point A and the point B according to the formula (3), calculating the distance values d between all scanning points according to the latitude and longitude information of the formula (3), selecting the maximum distance value, assuming that the maximum distance value is 5000m and the distance threshold value is 500m, comparing the maximum distance value with the set distance threshold value, and performing risk early warning when the maximum distance value exceeds the distance threshold value;
in this example, the maximum distance value 5000 is greater than the distance threshold 500, and according to the code scanning frequency 50 ≤ j ≤ 56 ≤ 100 and the risk early warning level in step 1, the final determination result of the anti-counterfeiting verification is to perform moderate risk early warning.
Claims (1)
1. An anti-counterfeiting verification method of a two-dimensional code is characterized by comprising the following steps:
step one, generating a two-dimensional code:
step 1, defining a variable i, and initializing i to be 1;
step 2, generating a source tracing code;
step 2.1, obtaining the interval length R of the tracing code by using the formula (1)l；
In formula (1), l represents the length of the traceable code; n represents generating the tracing sourceNumber of codes, RmaxRepresents the maximum value of the random function Rand ();
step 2.2, generating the ith traceability code R by using the formula (2)i：
Ri＝(i-1)×Rl+Rand(Rl) 1≤i≤n (2)
Step 3, generating a prefix code;
setting an access website url and a user-defined parameter, and forming the prefix code by the access website url and the user-defined parameter;
step 4, generating a Y-bit verification code;
step 4.1, setting a one-dimensional array Arr [ ];
the elements of the one-dimensional array Arr [ ] are composed of letters and numbers, and the length of the one-dimensional array Arr [ ] is defined to be L;
step 4.2, generating a random number m by using a random function rand (L); obtaining the m-1 element Arr [ m-1] in the one-dimensional array Arr [ ] from the random number m; m is more than or equal to 1 and less than or equal to L;
step 4.3, repeating the step 4.2 for Y times, thereby obtaining the ith source tracing code RiA corresponding Y-bit verification code;
step 5, the ith traceability code R is usediStoring the prefix code and the Y-bit verification code into an anti-counterfeiting database, and storing the ith tracing code RiCombining the initial two-dimensional code with the prefix code and then generating an ith initial two-dimensional code by using a bar code generator; embedding the Y-bit verification code into the middle position of the ith initial two-dimensional code to form an ith two-dimensional code;
step 6, assigning the i +1 to the i and returning to the step 2.2 to execute until n two-dimensional codes are obtained;
step two, preliminarily judging the authenticity of the two-dimensional code to be verified:
judging whether the middle position of the two-dimensional code to be verified contains a verification code to be verified or not; if not, the two-dimensional code to be verified is represented as a pseudo code, otherwise, the two-dimensional code to be verified is scanned to obtain a scanning result of the two-dimensional code to be verified, whether the scanning result contains the access website url is judged, and if not, the two-dimensional code to be verified is represented as a pseudo code; otherwise, reading the source tracing code to be verified in the scanning result and executing the third step;
step three, obtaining scanning time and scanning place:
jumping to a corresponding anti-counterfeiting website according to the visited website url, and acquiring scanning time and a scanning place formed by longitude and latitude information by utilizing an inquiry function provided by the anti-counterfeiting website; extracting a source code to be verified from the two-dimensional code to be verified; forming a code scanning record by the scanning time, the scanning place and the source tracing code to be verified and storing the code scanning record into a code scanning database;
step four, judging the authenticity of the source code to be verified:
comparing the traceability codes to be verified with traceability codes in the anti-counterfeiting database one by one, and if the comparison is successful, obtaining the traceability codes to be verified as traceability codes RiAnd executing the step five, otherwise, indicating that the two-dimensional code to be verified is a pseudo code;
step five, judging the authenticity of the verification code to be verified:
according to the tracing code RiObtaining a corresponding ith Y-bit verification code from the anti-counterfeiting database; comparing the verification code to be verified with the ith Y-bit verification code, and if the comparison is successful, indicating that the two-dimensional code to be verified is a true code; otherwise, the two-dimensional code to be verified is a pseudo code.
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| CN102609543A (en) * | 2012-02-27 | 2012-07-25 | 华南农业大学 | Multifunctional two-dimensional code product traceability system and traceability method |
| CN103020829A (en) * | 2012-12-11 | 2013-04-03 | 华南农业大学 | Spatial visualization revealed two-dimension code food information tracing method |
| CN103077467B (en) * | 2013-01-30 | 2016-06-29 | 王志刚 | A kind of method and system verifying authenticity of products |
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2014
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- 2014-10-24 CN CN201710250373.8A patent/CN106940860B/en active Active
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| CN104331728B (en) | 2017-04-19 |
| CN104331728A (en) | 2015-02-04 |
| CN107423792A (en) | 2017-12-01 |
| CN106940860A (en) | 2017-07-11 |
| CN107423792B (en) | 2019-05-03 |
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