CN102945391B - Same-directional synchronous gradually-increased encryption binary anti-counterfeiting printing method - Google Patents
Same-directional synchronous gradually-increased encryption binary anti-counterfeiting printing method Download PDFInfo
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- CN102945391B CN102945391B CN201210401746.4A CN201210401746A CN102945391B CN 102945391 B CN102945391 B CN 102945391B CN 201210401746 A CN201210401746 A CN 201210401746A CN 102945391 B CN102945391 B CN 102945391B
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Abstract
The invention discloses a same-directional synchronous gradually-increased encryption binary anti-counterfeiting printing method which comprises the following steps: performing encrypting operation and channel encoding to binary anti-counterfeiting information to generate a binary modulating signal, and adopting a modulation mode of a looped look-up table method to embed the anti-counterfeiting information into the whole page through sequential change in a shape of amplitude-modulated dot. Therefore, the anti-counterfeiting information can be recognized from any fragment during presswork recognition. The method can be widely applied to the anti-counterfeiting field of presswork.
Description
Technical field:
The present invention relates to the synchronous in the same way increment encryption scale-of-two anti-counterfeiting printing technology of a kind of anti-counterfeiting printing technology, particularly one, 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, and encryption parameter C is the positive integer of 1≤C≤255, and two binary operators and order of operation control variable are denoted as k, and operator and order of operation control variable k are the integer of 0≤k≤3, operator
adopt+,-, ×, ÷ tetra-kinds of computings, when operator and order of operation control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+, ÷, × computing, when operator and order of operation control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × ,-, ÷ computing, become sequence cryptographic calculation when operator and order of operation control variable k=0 and be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=1 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=2 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=3 to be defined as
the initial value of setting encryption parameter C, the initial value k=0 of setting operator and order of operation control variable k, sets 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, from 16 one group scale-of-two anti-counterfeiting information table first group of 16 binary message, in 16 one group scale-of-two anti-counterfeiting information table each group 16 binary messages carry out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1 and k+1 computing is carried out while becoming sequence cryptographic calculation, by carrying out above-mentioned cryptographic calculation to each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude is set to two kinds: square and rhombus
wherein square is defined as numeral 0, rhombus
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, 16 the one group of binary modulated signals generated are utilized to adopt the shape of amplitude in circulation look-up table modulation system modulation shadow tone hybrid screening picture signal, make the shape of amplitude according to square and rhombus
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.
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, change sequence cryptographic calculation is carried out to each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table, 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 are 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 system modulation shadow tone hybrid screening picture signal, make the shape of amplitude according to square and rhombus
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 H from scale-of-two deciphering anti-counterfeiting information table
1start, computing is decrypted to each group 16 binary messages in scale-of-two deciphering anti-counterfeiting information table, 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, and encryption parameter C is the positive integer of 1≤C≤255, and two binary operators and order of operation control variable are denoted as k, and operator and order of operation control variable k are the integer of 0≤k≤3, operator
adopt+,-, ×, ÷ tetra-kinds of computings, when operator and order of operation control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+, ÷, × computing, when operator and order of operation control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × ,-, ÷ computing, become sequence cryptographic calculation when operator and order of operation control variable k=0 and be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=1 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=2 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=3 to be defined as
the initial value of setting encryption parameter C, the initial value k=0 of setting operator and order of operation control variable k, sets 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, from 16 one group scale-of-two anti-counterfeiting information table first group of 16 binary message, in 16 one group scale-of-two anti-counterfeiting information table each group 16 binary messages carry out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1 and k+1 computing is carried out while becoming sequence cryptographic calculation, by carrying out above-mentioned cryptographic calculation to each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude is set to two kinds: square and rhombus
wherein square is defined as numeral 0, rhombus
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, 16 the one group of binary modulated signals generated are utilized to adopt the shape of amplitude in circulation look-up table modulation system modulation shadow tone hybrid screening picture signal, make the shape of amplitude according to square and rhombus
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.
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 H from scale-of-two deciphering anti-counterfeiting information table
1start, computing is decrypted to each group 16 binary messages in scale-of-two deciphering anti-counterfeiting information table, 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 synchronous in the same way 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, and encryption parameter C is the positive integer of 1≤C≤255, and two binary operators and order of operation control variable are denoted as k, and operator and order of operation control variable k are the integer of 0≤k≤3, operator
adopt+,-, ×, ÷ tetra-kinds of computings, when operator and order of operation control variable k=0
be defined as+, × ,-, ÷ ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=1
be defined as ÷ ,+,+, × ,-, ÷ ,+, ÷, × computing, when operator and order of operation control variable k=2
be defined as-, ÷ ,+, × ,+, ÷, × ,-, ÷ computing, when operator and order of operation control variable k=3
be defined as+, ÷ ,+, × ,-, ÷, × ,-, ÷ computing, become sequence cryptographic calculation when operator and order of operation control variable k=0 and be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=1 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=2 to be defined as
become sequence cryptographic calculation when operator and order of operation control variable k=3 to be defined as
the initial value of setting encryption parameter C, the initial value k=0 of setting operator and order of operation control variable k, sets 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, from 16 one group scale-of-two anti-counterfeiting information table first group of 16 binary message, in 16 one group scale-of-two anti-counterfeiting information table each group 16 binary messages carry out
become sequence cryptographic calculation, and each group 16 binary messages are being carried out
i+1 and k+1 computing is carried out while becoming sequence cryptographic calculation, by carrying out above-mentioned cryptographic calculation to each group 16 binary messages in 16 one group scale-of-two anti-counterfeiting information table, generate the scale-of-two encryption anti-fake information table of 16 group, the shape of amplitude is set to two kinds: square
and rhombus
wherein square
be defined as numeral 0, rhombus
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, 16 the one group of binary modulated signals generated are utilized to adopt the shape of amplitude in circulation look-up table modulation system modulation shadow tone hybrid screening picture signal, make the shape of amplitude according to square
and rhombus
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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| CN201210401746.4A CN102945391B (en) | 2012-10-22 | 2012-10-22 | Same-directional synchronous gradually-increased encryption binary anti-counterfeiting printing method |
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| CN102945391B true CN102945391B (en) | 2015-07-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425103A (en) * | 1994-03-14 | 1995-06-13 | Shaw; William Y. | Variable-key cryptography system |
| CN1928916A (en) * | 2006-08-21 | 2007-03-14 | 顾泽苍 | Printing medium certificate documents and false proof handling method of copy thereof |
| 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 |
| CN102184428A (en) * | 2011-04-14 | 2011-09-14 | 北京印刷学院 | Encrypting anti-counterfeiting printing technology for modulating shapes of amplitude modulation dots of printed work through binary-system encrypting signal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699845B (en) * | 2009-10-20 | 2011-12-07 | 北京印刷学院 | Encryption counterfeit printing technology of frequency modulated halftone dot space position for pseudo random signal modulation printed matter |
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2012
- 2012-10-22 CN CN201210401746.4A patent/CN102945391B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425103A (en) * | 1994-03-14 | 1995-06-13 | Shaw; William Y. | Variable-key cryptography system |
| CN1928916A (en) * | 2006-08-21 | 2007-03-14 | 顾泽苍 | Printing medium certificate documents and false proof handling method of copy thereof |
| 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 |
| CN102184428A (en) * | 2011-04-14 | 2011-09-14 | 北京印刷学院 | Encrypting anti-counterfeiting printing technology for modulating shapes of amplitude modulation dots of printed work through binary-system encrypting signal |
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