CN102955962B - Double variant multi-parameter relative synchronous progressive increased encrypted binary anti-fake printing method - Google Patents
Double variant multi-parameter relative synchronous progressive increased encrypted binary anti-fake printing method Download PDFInfo
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- CN102955962B CN102955962B CN201210404152.9A CN201210404152A CN102955962B CN 102955962 B CN102955962 B CN 102955962B CN 201210404152 A CN201210404152 A CN 201210404152A CN 102955962 B CN102955962 B CN 102955962B
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- counterfeiting information
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Abstract
The invention discloses a double variant multi-parameter relative synchronous progressive increased encrypted binary anti-fake printing method. According to the method, the binary anti-fake information is subjected to encryption calculation and channel encoding so as to generate a binary modulation signal; and the anti-fake information is embedded into a whole page in a sequential changing manner of the shape of an amplitude modulation mesh point in a circulation look-up table method modulation mode, so that the anti-fake information can be identified from any fragment while identifying a printed product, and thus the method can be widely used in the anti-fake field of printed products.
Description
Technical field:
The present invention relates to a kind of anti-counterfeiting printing technology, particularly a kind of Double-variant multi-parameter relative synchronization increment encryption scale-of-two anti-counterfeiting printing technology, this anti-counterfeiting printing technology may be used for the false proof of various printed matter.
Background technology:
Existing comparatively common method for anti-counterfeit has following several: the first is laser anti-false sign, by laser recessive ink daylight fluorescence ink printing technology, the symbol of product or special identification icon are printed to the anti-fake label of product, and same class product uses same labeling, because anti-fake label is easier to forge, and the anti-fake label forged is used on fake products, cause the true and false of product to obscure, be therefore difficult to effectively false proof.The second is cipher counterfeit-proof labeling, its method adopted is that every part product compiles one group of number, the coding of every part product is not identical, this number is printed on labeling and also hides, simultaneously by this number stored in can for consumer query Computer Database in, when consumer buys product, number in mark is compared identification by phone or networking computer input Computer Database, identical be true, difference is vacation, method is simple, identify easily, not easily forge, but in actual use, rear printing labeling is generated because coded data is that computing machine is unified.The true and false coded data of representative products may be illegally duplicated fraud, and meanwhile, the coding of coding also on the recyclable product do not inquired about is made mark and be attached on false pain product, and antifalse effect is difficult to ensure.The third is texture anti-fake, false proof with the textural characteristics on its labeling, although more difficult forgery, but due to the serial number of only bidding subsides, and be plain code, every piece of labeling can be inquired about repeatedly, and fake producer forges by this feature batch after the presence or absence phenomenon in the necessary textural characteristics reflected when the sequence number on labeling and inquiry and grid being plagiarized by warehouseman or shop-assistant.In sum, all there is certain shortcoming in existing method for anti-counterfeit, thus can not from preventing fake products at all.
Summary of the invention:
In order to overcome the shortcoming that existing various printed matter anti-counterfeiting printing technology exists, the deficiency that the present invention is directed to the existence of existing printed matter anti-counterfeiting printing technology is improved prior art, propose the encryption counterfeit printing technology of the shape of a kind of scale-of-two coded signal modulation printed matter amplitude, anti-counterfeiting information is embedded in full page by the change of the shape of amplitude by this anti-counterfeiting printing technology, anti-counterfeiting information can be identified from any one fragment when printed matter identification, therefore there is very strong crush resistance, fundamentally can stop to adopt and take a picture, scanning waits bootlegging behavior.
The technical solution adopted for the present invention to solve the technical problems is: separately process the amplitude in flexographic printing hybrid screening and frequency-modulation halftone dot, utilize image information, Word message, the anti-counterfeiting information such as trademark information generate the scale-of-two anti-counterfeiting information table of 8 group, for preventing producing information spillover in ciphering process, in scale-of-two anti-counterfeiting information table 8 one group of binary message is expanded to 16 one group of binary messages, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, i-th group of 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are denoted as N
i, i be greater than 0 positive integer, eight-digit binary number encryption parameter is denoted as C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8be the integer of 0 to 255, scale-of-two control variable is denoted as j, k, and scale-of-two control variable k is the integer of 0≤k≤3, and scale-of-two control variable j is the integer of 0≤j≤7, operator
adopt+,-, ×, ÷ tetra-kinds of computings, during scale-of-two control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × computing, during scale-of-two control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+computing, during scale-of-two control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × computing, during scale-of-two control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × computing, become sequence cryptographic calculation during scale-of-two control variable k=0 and be defined as
become sequence cryptographic calculation during scale-of-two control variable k=1 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=2 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=3 to be defined as
setting encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8initial value, because of encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8be the integer in 0 to 255, appoint in 256 numbers and get C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8eight different numerals have 256! / (256-8)! plant and follow the example of, the initial value of setting scale-of-two control variable j, k is j=0 and k=0, sets 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, first group of 16 binary message N from 16 one group scale-of-two anti-counterfeiting information table
1start, each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table are carried out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1, j+1 and k+1 computing is carried out, by carrying out each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table while cryptographic calculation
become sequence cryptographic calculation, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude be set to two kinds: with
, wherein be defined as numeral 0,
be defined as numeral 1, utilize the scale-of-two encryption anti-fake information of 16 group generated by circulation look-up table modulation amplitude, make its regular shape according to amplitude in the alteration of form hybrid screening of above-mentioned two kinds of amplitudes, to make in hybrid screening that the shape of amplitude is well-regulated to change, after modulation, adjacent 16 amplitudes form one group of 16 binary message, it is made to carry anti-counterfeiting information, and make this anti-counterfeiting information be embedded in full page site, can more effectively resist based on bootlegging behaviors such as camera, scanner, electronic documents.Obvious embed extractible anti-counterfeiting information by non-in printed matter, valid certificates can be provided for genuine piece, there is stronger anti-forgery ability simultaneously, and do not increase extra false proof cost.
For solving above-mentioned technical matters, first digitizing is carried out to anti-counterfeiting information, generate the scale-of-two anti-counterfeiting information table of 8 group, anti-counterfeiting information can be image information, Word message, trademark information etc., in scale-of-two anti-counterfeiting information table 8 one group of binary message is expanded to 16 one group of binary messages, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table are carried out
cryptographic calculation, generate the scale-of-two encryption anti-fake information table of 16 group, 16 binary messages in 16 the one group scale-of-two encryption anti-fake information table that utilization generates, through chnnel coding, generate the binary modulated signal with 16 group of error detecting and error correcting function.Chnnel coding can adopt the various ways such as loop coding, convolutional encoding or Turbo coding, image signal of original continuous being changed the line map exports shadow tone hybrid screening picture signal through rasterizing process (RIP) and hybrid screening, comprising amplitude and FM screened image signal, utilize 16 the one group of binary modulated signals generated to adopt the shape of amplitude in circulation look-up table modulation systems modulation shadow tone hybrid screening picture signals, make the shape of amplitude according to and
regularly to change, adjacent 16 amplitudes in shadow tone hybrid screening picture signal are made to carry 16 scale-of-two anti-counterfeiting information by the change of shape, thus be created on the shadow tone hybrid screening picture signal embedding anti-counterfeiting information in full page site, realize anti-counterfeit printing.
When extracting anti-counterfeiting information, first gather halftone dot image signal, through the fuzzy diagnosis to the shape of amplitude, differentiate the shape of amplitude, extract edge signal and the shape information of amplitude, the shape information of demodulation amplitude, exports the binary modulated signal of 16 group.Carry out channel-decoding to the binary modulated signal of 16 group that demodulation exports, generate the scale-of-two deciphering anti-counterfeiting information table of 16 group after channel-decoding, 16 binary messages of being deciphered by scale-of-two in anti-counterfeiting information table are denoted as H
i, it is known by ciphering process,
During operator control variable k=0
During operator control variable k=1
During operator control variable k=2
During operator control variable k=3
16 binary message H in scale-of-two deciphering anti-counterfeiting information table
iposition control initial guess be set as i=1, first group of H from scale-of-two deciphering anti-counterfeiting information table
1start, each group 16 binary messages in scale-of-two deciphering anti-counterfeiting information table are carried out
Decrypt operation, solves scale-of-two anti-counterfeiting information N
i, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, remove most-significant byte, generate the scale-of-two anti-counterfeiting information table of 8 group, recover anti-counterfeiting signal and export anti-counterfeiting information.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 loads anti-counterfeiting information process flow diagram.
Fig. 2 extracts anti-counterfeiting information process flow diagram.
Embodiment
In loading anti-counterfeiting information process flow diagram 1, original anti-counterfeiting information (image, word, trade mark) is through digitized processing, generate the scale-of-two anti-counterfeiting information table of 8 group, in scale-of-two anti-counterfeiting information table 8 one group of binary message is expanded to 16 one group of binary messages, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, i-th group of 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are denoted as N
i, i be greater than 0 positive integer, eight-digit binary number encryption parameter is denoted as C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8be the integer of 0 to 255, scale-of-two control variable is denoted as j, k, and scale-of-two control variable k is the integer of 0≤k≤3, and scale-of-two control variable j is the integer of 0≤j≤7, operator
adopt+,-, ×, ÷ tetra-kinds of computings, during scale-of-two control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × computing, during scale-of-two control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+computing, during scale-of-two control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × computing, during scale-of-two control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × computing, become sequence cryptographic calculation during scale-of-two control variable k=0 and be defined as
become sequence cryptographic calculation during scale-of-two control variable k=1 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=2 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=3 to be defined as
setting encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8initial value, because of encryption parameter C
1, C
2, C
3, C
4, C5
,c6
,c7
,c
8be the integer in 0 to 255, appoint in 256 numbers and get C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8eight different numerals have 256! / (256-8)! Plant and follow the example of, the initial value of setting scale-of-two control variable j, k is j=0 and k=0, sets 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, first group of 16 binary message N from 16 one group scale-of-two anti-counterfeiting information table
1start, each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table are carried out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1, j+1 and k+1 computing is carried out, by carrying out each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table while cryptographic calculation
become sequence cryptographic calculation, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude be set to two kinds: with
, wherein be defined as numeral 0,
be defined as numeral 1,16 scale-of-two encryption anti-fake information of generation, through chnnel coding, generate the binary modulated signal with error detecting and error correcting function.Chnnel coding can adopt the various ways such as loop coding, convolutional encoding or Turbo coding.Image signal of original continuous being changed the line map exports shadow tone hybrid screening picture signal, comprising amplitude and FM screened image signal through rasterizing process (RIP) and hybrid screening.The binary modulated signal generated is utilized to adopt circulation to table look-up modulation system, the shape of amplitude in modulation shadow tone hybrid screening picture signal, to make in hybrid screening that the shape of amplitude is regular to change, generate the shadow tone hybrid screening picture signal embedding anti-counterfeiting information, by the modulation system of tabling look-up that circulates, adjacent 16 amplitudes are made to generate one group of 16 bit binary data by the change of shape, it is made to carry anti-counterfeiting information, and this anti-counterfeiting information is embedded in full page site, realize anti-counterfeit printing.
In extraction anti-counterfeiting information process flow diagram 2, when extracting anti-counterfeiting information, first halftone dot image signal is gathered, through the fuzzy diagnosis to the shape of amplitude, differentiate the shape of amplitude, extract edge signal and the shape information of amplitude, the shape information of demodulation amplitude, exports the binary modulated signal of 16 group.Carry out channel-decoding to the binary modulated signal of 16 group that demodulation exports, generate the scale-of-two deciphering anti-counterfeiting information table of 16 group after channel-decoding, 16 binary messages of being deciphered by scale-of-two in anti-counterfeiting information table are denoted as H
i, it is known by ciphering process,
During operator control variable k=0
During operator control variable k=1
During operator control variable k=2
During operator control variable k=3
16 binary message H in scale-of-two deciphering anti-counterfeiting information table
iposition control initial guess be set as i=1, first group of H from scale-of-two deciphering anti-counterfeiting information table
1start, each group 16 binary messages in scale-of-two deciphering anti-counterfeiting information table are carried out
Decrypt operation, solves scale-of-two anti-counterfeiting information N
i, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, remove most-significant byte, generate the scale-of-two anti-counterfeiting information table of 8 group, recover anti-counterfeiting signal and export anti-counterfeiting information.
Claims (1)
1. anti-counterfeiting information is generated binary modulated signal by cryptographic calculation and chnnel coding by one kind, and anti-counterfeiting information is embedded in the Double-variant multi-parameter relative synchronization increment encryption scale-of-two antiforging printing method in full page by modulation system of tabling look-up by circulating, it is characterized in that: digitizing is carried out to anti-counterfeiting information, generate the scale-of-two anti-counterfeiting information table of 8 group, anti-counterfeiting information is image information, Word message or trademark information, for preventing producing information spillover in ciphering process, in scale-of-two anti-counterfeiting information table 8 one group of binary message is expanded to 16 one group of binary messages, generate 16 the one group scale-of-two anti-counterfeiting information table that most-significant byte is 0 entirely, i-th group of 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are denoted as N
i, i be greater than 0 positive integer, eight-digit binary number encryption parameter is denoted as C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8be the integer of 0 to 255, scale-of-two control variable is denoted as j, k, and scale-of-two control variable k is the integer of 0≤k≤3, and scale-of-two control variable j is the integer of 0≤j≤7, operator
adopt+,-, ×, ÷ tetra-kinds of computings, during scale-of-two control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × computing, during scale-of-two control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+computing, during scale-of-two control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × computing, during scale-of-two control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × computing, become sequence cryptographic calculation during scale-of-two control variable k=0 and be defined as
become sequence cryptographic calculation during scale-of-two control variable k=1 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=2 to be defined as
become sequence cryptographic calculation during scale-of-two control variable k=3 to be defined as
setting encryption parameter C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8initial value, because of encryption parameter C
1, C
2, C
3, C
4, C
6, C
5, C
7, C
8be the integer in 0 to 255, appoint in 256 numbers and get C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8eight different numerals have 256! / (256-8)! plant and follow the example of, the initial value of setting scale-of-two control variable j, k is j=0 and k=0, set position control variable i=1 of 16 binary message Ni in 16 one group scale-of-two anti-counterfeiting information table, first group of 16 binary message N from 16 one group scale-of-two anti-counterfeiting information table
1start, each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table are carried out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1, j+1 and k+1 computing is carried out, by carrying out each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table while cryptographic calculation
become sequence cryptographic calculation, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude is set to two kinds:
with
wherein
be defined as numeral 0,
be defined as numeral 1, utilize the scale-of-two encryption anti-fake information of 16 group generated through chnnel coding, generate 16 one group of binary modulated signals with error detecting and error correcting function, image signal of original continuous being changed the line map exports shadow tone hybrid screening picture signal through rasterizing process (RIP) and hybrid screening, comprising amplitude and FM screened image signal, utilize 16 the one group of binary modulated signals generated to adopt the shape of amplitude in circulation look-up table modulation systems modulation shadow tone hybrid screening picture signals, make the shape of amplitude according to
with
regularly to change, adjacent 16 amplitudes in shadow tone hybrid screening picture signal are made to carry 16 scale-of-two encryption anti-fake information by the change of shape, thus be created on the shadow tone hybrid screening picture signal embedding anti-counterfeiting information in full page site, realize anti-counterfeit printing.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101777134A (en) * | 2010-03-01 | 2010-07-14 | 北京印刷学院 | Presswork encryption security printing technology based on multi-system quadrature amplitude modulation |
CN102402696A (en) * | 2011-04-25 | 2012-04-04 | 北京印刷学院 | Multi-dimensional encryption anti-counterfeiting printing technology based on binary signals |
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US20050244060A1 (en) * | 2004-04-30 | 2005-11-03 | Xerox Corporation | Reformatting binary image data to generate smaller compressed image data size |
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CN101777134A (en) * | 2010-03-01 | 2010-07-14 | 北京印刷学院 | Presswork encryption security printing technology based on multi-system quadrature amplitude modulation |
CN102402696A (en) * | 2011-04-25 | 2012-04-04 | 北京印刷学院 | Multi-dimensional encryption anti-counterfeiting printing technology based on binary signals |
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