CN107766909B - The method and system of anti-tamper processing is carried out to two-dimension code pattern - Google Patents
The method and system of anti-tamper processing is carried out to two-dimension code pattern Download PDFInfo
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- CN107766909B CN107766909B CN201711058620.0A CN201711058620A CN107766909B CN 107766909 B CN107766909 B CN 107766909B CN 201711058620 A CN201711058620 A CN 201711058620A CN 107766909 B CN107766909 B CN 107766909B
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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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Abstract
The invention discloses a kind of methods carrying out anti-tamper processing to two-dimension code pattern comprising：Analysis of two-dimensional code figure calculates analysis result using Digital Signature Algorithm, and converts calculated result to binary number；The binary number is converted into permutation graph, the black block wherein in the permutation graph indicates that binary number " 1 ", white blocks indicate binary number " 0 "；And the permutation graph is placed in one or more replacement areas of the two-dimension code pattern.The invention also discloses a kind of systems carrying out anti-tamper processing to two-dimension code pattern.
Description
Technical field
The present invention relates to Quick Response Code (QR code, quick response code) technical field, and more particularly to one
Kind carries out two-dimension code pattern the method and system of anti-tamper processing.
Background technology
In recent years, Quick Response Code receives businessman and user due to the advantages such as its is simple, easy-to-use, information capacity is big, reliability is high
Favor, and be widely used in the numerous areas such as internet, mobile application, information preservation, logistics management.In Quick Response Code
It has been widely used instantly, due to all more important information such as network information, subscriber datas in worldwide
It is carried on wherein, and the swindle event under network environment emerges one after another, information security becomes more important.Therefore, there is an urgent need for can
With the technology for identifying, preventing Quick Response Code to be tampered.
Invention content
The present invention proposes a kind of method and system carrying out anti-tamper processing to two-dimension code pattern, can be so as to identification original two
Whether dimension code has been tampered with, and prevents Quick Response Code to be tampered to realize.
In one aspect, it is proposed that a method of anti-tamper processing is carried out to two-dimension code pattern comprising：Analysis of two-dimensional
Code figure, calculates analysis result using Digital Signature Algorithm, and convert calculated result to binary number；By this two into
Number processed is converted to permutation graph, and the black block wherein in the permutation graph indicates that binary number " 1 ", white blocks indicate binary number
"0"；And the permutation graph is placed in one or more replacement areas of the two-dimension code pattern.
In certain embodiments, the pattern primitive prime number of the graphic element quantity Yu the two-dimension code pattern of the permutation graph
The upper limit of the ratio of amount is the serious forgiveness of the two-dimension code pattern.
In certain embodiments, which is carried out increasing at least one in check bit processing and disorder processing
A processing, then the binary number is converted to the permutation graph by treated.
In certain embodiments, replacement areas first address and displacement zone are recorded in the specific position of the two-dimension code pattern
At least one of domain recognition scheme, the wherein specific position be not Chong Die with one or more replacement areas.
On the other hand, it is proposed that a kind of system that anti-tamper processing is carried out to two-dimension code pattern, including processor and
Memory is stored with coding processing unit in the memory, the coding processing unit：Analysis of two-dimensional code figure is signed using number
Name algorithm calculates analysis result, and converts calculated result to binary number；The binary number is converted into permutation graph
Shape, the black block wherein in the permutation graph indicate that binary number " 1 ", white blocks indicate binary number " 0 "；And by the displacement
Figure is placed in one or more replacement areas of the two-dimension code pattern.
In certain embodiments, the pattern primitive prime number of the graphic element quantity Yu the two-dimension code pattern of the permutation graph
The upper limit of the ratio of amount is the serious forgiveness of the two-dimension code pattern.
In certain embodiments, which carries out the binary number to increase check bit processing and scramble
At least one of processing processing, then the binary number is converted to the permutation graph by treated.
In certain embodiments, which records replacement areas in the specific position of the two-dimension code pattern
At least one of first address and replacement areas recognition scheme, the wherein specific position not with one or more replacement areas weights
It is folded.
In a further embodiment, further include codec processing unit, which obtains from the specific position
The replacement areas first address is at least one with the recognition scheme kind, and according to the replacement areas first address of acquirement and the recognition
At least one of scheme reads the permutation graph.
In a further embodiment, which carries out the binary number of the permutation graph read anti-
At least one of disorder processing and verification reduction treatment processing, to obtain validating documents information.
On the other hand, it is proposed that a kind of computer readable storage medium is stored thereon with one or more computer journeys
Sequence, one or more computer programs are subsequently can by computer when device executes and realize following steps：
Analysis of two-dimensional code figure calculates analysis result using Digital Signature Algorithm, and converts calculated result to
Binary number；
The binary number is converted into permutation graph, the black block wherein in the permutation graph indicates binary number " 1 ", in vain
Color lump indicates binary number " 0 "；And
The permutation graph is placed in one or more replacement areas of the two-dimension code pattern.
In a further embodiment, the pattern primitive prime number of the graphic element quantity Yu the two-dimension code pattern of the permutation graph
The upper limit of the ratio of amount is the serious forgiveness of the two-dimension code pattern.
In a further embodiment, the step of which being converted to the two-dimension code pattern include：To this two into
Number processed increase check bit processing and at least one of disorder processing, then will treated that the binary number is converted to this sets
Change figure.
In a further embodiment, which it is following to be subsequently can by computer also realization when device executes
Step：At least one in the specific position record replacement areas first address and replacement areas recognition scheme of the two-dimension code pattern
A, wherein the specific position is not Chong Die with one or more replacement areas.
In a further embodiment, which it is following to be subsequently can by computer also realization when device executes
Step：At least one of the replacement areas first address and the recognition scheme, and being somebody's turn to do according to acquirement are obtained from the specific position
One in replacement areas first address and the recognition scheme is read the permutation graph.
In a further embodiment, which it is following to be subsequently can by computer also realization when device executes
Step：At least one of anti-disorder processing and verification reduction treatment place are carried out to the binary number of the permutation graph read
Reason, to obtain validating documents information.
The present invention, then will coding by being re-encoded to the figure of the Quick Response Code on the basis of ordinary QR code
As a result it is placed in the figure of the Quick Response Code, to carry out local displacement to former two-dimension code pattern.Two-dimension code pattern through displacement can
The result for being distinguished using tools such as special-purpose softwares (such as cell phone application) and parsing, and parsing can be used as verification foundation, use
The primitiveness of former Quick Response Code is verified, whether is had been tampered with so as to the former Quick Response Code of identification, two dimension is prevented to realize
Code is tampered.
Description of the drawings
Including attached drawing to provide a further understanding of embodiments and attached drawing is incorporated into this specification and is constituted this
Part of specification.Attached drawing illustrates embodiment and together with the description principle for explaining the present invention.It will readily recognize that
To many expected advantages of other embodiments and embodiment, because described in detail below by quoting, they become by preferably
Understand.The element of attached drawing is not necessarily mutually proportionally.Same reference numeral refers to corresponding like.
Fig. 1 is the flow chart of two-dimension code pattern processing method according to an embodiment of the invention；
Fig. 2 is the flow chart of two-dimension code pattern processing method according to another embodiment of the invention；And
Fig. 3 is the schematic diagram of two-dimension code pattern processing system according to an embodiment of the invention.
Specific implementation mode
In the following detailed description, refer to the attached drawing, the attached drawing form a part for detailed description, and by wherein can be real
The illustrative specific embodiment of the present invention is trampled to show.It is patrolled it should be understood that other embodiment can be utilized or can be made
It collects and changes, without departing from the scope of the present invention.Therefore described in detail below to be used in limiting sense, and this
The range of invention is defined by the following claims.
Fig. 1 shows the flow chart of two-dimension code pattern processing method according to an embodiment of the invention.Such as Fig. 1 institutes
Show, which includes the following steps：
S10：A two-dimension code pattern is analyzed, analysis result is calculated using Digital Signature Algorithm, and is tied calculating
Fruit is converted to a binary number.
The two-dimension code pattern is the ordinary QR code figure being generated in advance.In one embodiment, which is
MD5 algorithms, which includes (to the two-dimension code pattern) recognition and parsing, therefore the step specifically includes：Recognition and parsing
The two-dimension code pattern, calculates analysis result using MD5 algorithms that (analysis result is calculated original as MD5 at this time
Data), and convert calculated result to the binary number.In other embodiments, the Digital Signature Algorithm can be sha-1,
Other Digital Signature Algorithms such as RIPEMD, Haval.It should be understood that for the different initial data inputted, MD5 algorithms
Different MD5 values can be exported, therefore it exports result with uniqueness；If conversely, having obtained the MD5 of some initial data
Value, can learn another initial data according to this by calculating the MD5 values of another initial data and comparing two MD5 values
Primitiveness.
S20：Binary number is converted into a permutation graph, the black block in permutation graph indicates binary number " 1 ", in vain
Color lump indicates binary number " 0 ".
The coding style of the permutation graph is consistent with the coding style of the two-dimension code pattern, black block therein indicate two into
Number " 1 " processed, white blocks indicate that binary number " 0 ", the two form the primary graphic element of the permutation graph.In one embodiment,
Can the processing such as increase check bit, scramble first be carried out to the binary number, then binary number is converted to the permutation graph by treated
Shape.
S30：Permutation graph is placed in the replacement areas of two-dimension code pattern.
It should be noted that in order to ensure that former two-dimension code pattern can normally be read after being placed in permutation graph, it should
The upper limit of the ratio of the graphic element quantity of permutation graph and the graphic element quantity of the two-dimension code pattern is the two-dimension code pattern
Serious forgiveness.It should be understood that in the replacement areas for being placed into permutation graph, although the figure of original encoding is replaced figure
It replaces and has not existed, i.e., form the destruction encoded to former two-dimension code pattern after the former two-dimension code pattern of permutation graph merging,
But due to serious forgiveness of the Quick Response Code coding with highest 30%, when the accounting of the graphic element quantity of permutation graph is no more than
When serious forgiveness, former two-dimension code pattern coding still can normally be read.
In one embodiment, the replacement areas being placed in can randomly choose, and replacement areas can have one or more.Having
In the embodiment of body, which can be one piece of continuous region.In addition, multiple replacement areas can also be polylith not
Continuous region, at this time the graphic element quantity of all replacement areas and graphic element quantity equal to the permutation graph it is total
Amount, the accounting of total amount should not be more than serious forgiveness.At this point, the graphic element of the permutation graph in merging replacement areas is in each displacement
It can be arranged according to row sequence or row sequence in region.
Fig. 2 shows the flow charts of two-dimension code pattern processing method according to another embodiment of the invention.Such as Fig. 2 institutes
Show, the two-dimension code pattern processing method is further comprising the steps of other than the step S10~S30 identical as previous embodiment：
S40：The first address and recognition scheme of replacement areas are recorded in the specific position of two-dimension code pattern, the specific position is not
It is Chong Die with replacement areas.
The accurate location of replacement areas is successfully navigated to when in order to enable recognition and obtains the information such as recognition sequence,
The two-dimension code pattern specific position record replacement areas first address and recognition scheme, using as replacement areas address and
The index of reading method.For example, for different replacement areas, the arrangement mode of graphic element in replacement areas, replacement areas
It is the combination of the different factors such as Coutinuous store or discontinuous storage, different recognition schemes can be formed, and with an index numerical value
It indicates, and to index numerical space can be planned as needed.
In recognition, it special-purpose software (such as cell phone application) can be used to obtain reading from the specific position of two-dimension code pattern and set
The index for changing region obtains the recognition first address and recognition scheme of permutation graph according to the index, to obtain permutation graph
Encoded content.
Fig. 3 shows the schematic diagram of two-dimension code pattern processing system according to an embodiment of the invention.Such as Fig. 3 institutes
Show, two-dimension code pattern processing system 100 includes coding processing unit 110, codec processing unit 120 and verification processing unit 130.
In one embodiment, two-dimension code pattern processing system 100 is a kind of computing device (such as server, computer and shifting
Dynamic intelligent terminal), including processor and memory.The processor is a kind of IC chip (such as microprocessor
(central processing unit, CPU)), for executing the computer program stored in the memory.Coded treatment
Unit 110, codec processing unit 120 and verification processing unit 130 are stored in the form of a computer program in the memory.?
In other embodiment, two-dimension code pattern processing system 100 can be that a kind of computer-readable storage medium (such as CD, dodges
Deposit (flash memory) and read-only memory (ROM, read-only memory)), coding processing unit 110, decoding process
Unit 120 and verification processing unit 130 are stored in the form of software modules in the storage medium.In addition, the processor can be with
It is digital signal processor (digital signal processor, DSP), application-specific integrated circuit (application
Specific integrated circuit, ASIC), ready-made programmable gate array (field-programmable gate
Array, FPGA) or other programmable logic device.
Coding processing unit 110 analyzes a two-dimension code pattern, is calculated analysis result using Digital Signature Algorithm,
And convert calculated result to a binary number；Binary number is converted into a permutation graph, the black in permutation graph
Block indicates that binary number " 1 ", white blocks indicate binary number " 0 "；And permutation graph is placed in the displacement zone of two-dimension code pattern
In domain.
The two-dimension code pattern is the ordinary QR code figure being generated in advance.In one embodiment, which is
MD5 algorithms, the analysis include (to the two-dimension code pattern) recognition and parsing.In other embodiments, the Digital Signature Algorithm
Can be other Digital Signature Algorithms such as sha-1, RIPEMD, Haval.
The coding style of the permutation graph is consistent with the coding style of the two-dimension code pattern, black block therein indicate two into
Number " 1 " processed, white blocks indicate that binary number " 0 ", the two form the primary graphic element of the permutation graph.In one embodiment,
Coding processing unit 110 first can carry out the processing such as increase check bit, scramble to the binary number, then will treated binary number
Be converted to the permutation graph.
It should be noted that in order to ensure that former two-dimension code pattern can normally be read after being placed in permutation graph, it should
The upper limit of the ratio of the graphic element quantity of permutation graph and the graphic element quantity of the two-dimension code pattern is the two-dimension code pattern
Serious forgiveness.
The accurate location of replacement areas is successfully navigated to when in one embodiment, in order to enable recognition and obtains knowledge
Reading sequence etc. information, coding processing unit 110 can the specific position of the two-dimension code pattern record replacement areas first address and
Recognition scheme, using the index of address and reading method as replacement areas, the wherein specific position is not Chong Die with replacement areas.
Codec processing unit 120 obtains the first address and recognition scheme of the replacement areas from the specific position, and reads according to this
Take the permutation graph.In one embodiment, codec processing unit 120 carries out the binary number of the permutation graph read anti-
Disorder processing and verification reduction treatment, to obtain validating documents information (such as MD5 values of the original coding of two-dimension code pattern).
Verification processing unit 130 is verified according to the validating documents information, to judge the primitiveness of the two-dimension code pattern.
In one embodiment, the MD5 values of the original coding of (through displacement) two-dimension code pattern acquired by the codec processing unit 120 with
Use the coding for the former two-dimension code pattern of (without the displacement) for corresponding to the two-dimension code pattern that ordinary QR code arithmetic analysis goes out
MD5 values it is consistent when, verification processing unit 130 judges that the encoded content of the original two-dimension code pattern is initial value, otherwise verification processing
Unit 130 judges that the encoded content of the original two-dimension code pattern has been tampered with.
The present invention, then will coding by being re-encoded to the figure of the Quick Response Code on the basis of ordinary QR code
As a result it is placed in the figure of the Quick Response Code, to carry out local displacement to former two-dimension code pattern.Two-dimension code pattern through displacement can
The result for being distinguished using tools such as special-purpose softwares (such as cell phone application) and parsing, and parsing can be used as verification foundation, use
The primitiveness of former Quick Response Code is verified, whether is had been tampered with so as to the former Quick Response Code of identification, two dimension is prevented to realize
Code is tampered.
Obviously, those skilled in the art can make to the present invention without departing from the spirit and scope of the present invention
Embodiment various modifications and change.In this manner, if these modifications and changes be in the present invention claim and its
In the range of equivalent form, then the present invention, which also aims to, covers these modifications and changes.Word " comprising " is not excluded for not wanting in right
The presence for the other element or steps listed in asking.The simple thing that certain measures are recorded in mutually different dependent claims
Do not indicate that the combination of these measures is consequently not used for making a profit in fact.Any reference numeral in claim should not be regarded as limited to
Range.
Claims (13)
1. a kind of method carrying out anti-tamper processing to two-dimension code pattern, which is characterized in that including：
Analysis of two-dimensional code figure calculates analysis result using Digital Signature Algorithm, and convert calculated result to two into
Number processed；
The binary number is converted into permutation graph, the black block wherein in the permutation graph indicates binary number " 1 ", white blocks
Indicate binary number " 0 "；And
The permutation graph is placed in one or more replacement areas of the two-dimension code pattern；
At least one of replacement areas first address and replacement areas recognition scheme are recorded in the specific position of the two-dimension code pattern,
Wherein the specific position is not Chong Die with one or more replacement areas.
2. according to the method described in claim 1, it is characterized in that, the graphic element quantity of the permutation graph and the Quick Response Code figure
The upper limit of the ratio of the graphic element quantity of shape is the serious forgiveness of the two-dimension code pattern.
3. according to the method described in claim 1, it is characterized in that, the step of binary number is converted to the two-dimension code pattern
Including：
Increase check bit processing and at least one of disorder processing to the binary number, then will treated the binary system
Number is converted to the permutation graph.
4. a kind of system carrying out anti-tamper processing to two-dimension code pattern, including processor and memory, stored in the memory
There is coding processing unit, which is characterized in that the coding processing unit：
Analysis of two-dimensional code figure calculates analysis result using Digital Signature Algorithm, and converts calculated result to one or two
System number；
The binary number is converted into permutation graph, the black block wherein in the permutation graph indicates binary number " 1 ", white blocks
Indicate binary number " 0 "；And
The permutation graph is placed in one or more replacement areas of the two-dimension code pattern；
At least one of replacement areas first address and replacement areas recognition scheme are recorded in the specific position of the two-dimension code pattern,
Wherein the specific position is not Chong Die with one or more replacement areas.
5. system according to claim 4, which is characterized in that the graphic element quantity of the permutation graph and the Quick Response Code figure
The upper limit of the ratio of the graphic element quantity of shape is the serious forgiveness of the two-dimension code pattern.
6. system according to claim 4, which is characterized in that the coding processing unit：
Increase check bit processing and the processing of at least one of disorder processing to the binary number, then will treated this two
System number is converted to the permutation graph.
7. system according to claim 4, which is characterized in that be also stored with codec processing unit in the memory, the solution
Code processing unit：
At least one of the replacement areas first address and the recognition scheme are obtained from the specific position, and is set according to this of acquirement
One changed in region first address and the recognition scheme reads the permutation graph.
8. system according to claim 7, which is characterized in that the codec processing unit：
At least one of anti-disorder processing and verification reduction treatment place are carried out to the binary number of the permutation graph read
Reason, to obtain validating documents information.
9. a kind of computer readable storage medium is stored thereon with one or more computer programs, which is characterized in that this is one or more
A computer program is subsequently can by computer when device executes and realizes following steps：
Analysis of two-dimensional code figure calculates analysis result using Digital Signature Algorithm, and convert calculated result to two into
Number processed；
The binary number is converted into permutation graph, the black block wherein in the permutation graph indicates binary number " 1 ", white blocks
Indicate binary number " 0 "；And
The permutation graph is placed in one or more replacement areas of the two-dimension code pattern；
At least one of replacement areas first address and replacement areas recognition scheme are recorded in the specific position of the two-dimension code pattern,
Wherein the specific position is not Chong Die with one or more replacement areas.
10. computer readable storage medium according to claim 9, which is characterized in that the graphic element of the permutation graph
The upper limit of the ratio of the graphic element quantity of quantity and the two-dimension code pattern is the serious forgiveness of the two-dimension code pattern.
11. computer readable storage medium according to claim 9, which is characterized in that the binary number is converted to this
The step of two-dimension code pattern includes：
Increase check bit processing and at least one of disorder processing to the binary number, then will treated the binary system
Number is converted to the permutation graph.
12. computer readable storage medium according to claim 9, which is characterized in that one or more computer programs
It is subsequently can by computer when device executes and also realizes following steps：
At least one of the replacement areas first address and the recognition scheme are obtained from the specific position, and is set according to this of acquirement
One changed in region first address and the recognition scheme reads the permutation graph.
13. computer readable storage medium according to claim 12, which is characterized in that one or more computer programs
It is subsequently can by computer when device executes and also realizes following steps：
At least one of anti-disorder processing and verification reduction treatment place are carried out to the binary number of the permutation graph read
Reason, to obtain validating documents information.
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| CN109325573B (en) * | 2018-09-25 | 2021-10-01 | 北京奇艺世纪科技有限公司 | Two-dimensional code generation method, two-dimensional code reading method and two-dimensional code reading device |
| CN113204755B (en) * | 2021-04-20 | 2022-10-14 | 重庆工业职业技术学院 | Data capture method for block chain big data security |
| CN117061128B (en) * | 2023-10-11 | 2023-12-22 | 北京天润基业科技发展股份有限公司 | Verification method and device for data replacement, storage medium and electronic equipment |
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