CN102945436A - Binary anti-fake printing method by multiparameter opposite synchronous-ascending encryption - Google Patents
Binary anti-fake printing method by multiparameter opposite synchronous-ascending encryption Download PDFInfo
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- CN102945436A CN102945436A CN2012104027396A CN201210402739A CN102945436A CN 102945436 A CN102945436 A CN 102945436A CN 2012104027396 A CN2012104027396 A CN 2012104027396A CN 201210402739 A CN201210402739 A CN 201210402739A CN 102945436 A CN102945436 A CN 102945436A
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Abstract
The invention relates to a binary anti-fake printing method by multiparameter opposite synchronous-ascending encryption. According to the method, binary anti-fake information can be converted into a binary modulation signal by encryption operation and channel encoding, and the anti-fake information is embedded in the full page in a circulating look-up table modulation manner in orderly change of shapes of amplitude modulation websites, so that the anti-fake information can be identified from any one fragment when a printed matter is identified. The method can be widely applied to the field of forgery prevention of printed matters.
Description
Affiliated technical field:
The present invention relates to a kind of anti-counterfeiting printing technology, particularly a kind of multiparameter relatively synchronously increases progressively and encrypts the scale-of-two anti-counterfeiting printing technology, and what this anti-counterfeiting printing technology can be for various printed matters is false proof.
Background technology:
Existing comparatively common method for anti-counterfeit has following several: the first is laser anti-false sign, the symbol of product or special identification icon are printed to the anti-fake label of product by the recessive printing ink daylight fluorescence ink of laser printing technology, and the same class product is used the same labeling, because anti-fake label is easier to forge, and the anti-fake label of forging is used on fake products, cause the true and false of product to obscure, therefore be difficult to effectively false proof.The second is the cipher counterfeit-proof labeling, its method adopted is that every product is compiled one group of number, the coding of every product is not identical, this number is printed on labeling and hides, this number is deposited in the Computer Database that can inquire about for the consumer simultaneously, when the consumer buys product, number on sign is compared to identification by phone or networking computer input Computer Database, identical being very, difference is vacation, method is simple, identification easily, be difficult for forging, but in actual the use, because coded data is the rear labeling of printing of the unified generation of computing machine.The true and false coded data of representative products may be faked by illegal copies, and simultaneously, the coding on the product of the also recyclable not inquiry of encoding is made mark and is attached on the false pain product, and antifalse effect is difficult to guarantee.The third is texture anti-fake, false proof with the textural characteristics on its labeling, although more difficult forgery, but due to a serial number of bidding subsides, and be plain code, every piece of labeling can be inquired about repeatedly, in the necessary textural characteristics grid that the fake producer can be by warehouseman or shop-assistant be reflected during by the sequence number on labeling and inquiry have or not phenomenon to plagiarize after by this feature, forge in batches.In sum, all there is certain shortcoming in existing method for anti-counterfeit, thereby can not be from prevent fake products at all.
Summary of the invention:
The shortcoming existed in order to overcome existing various printed matter anti-counterfeiting printing technology, the deficiency that the present invention is directed to existing printed matter anti-counterfeiting printing technology existence is improved prior art, a kind of encryption counterfeit printing technology of shape of scale-of-two coded signal modulation printed matter amplitude has been proposed, this anti-counterfeiting printing technology is embedded in anti-counterfeiting information in full page by the change of the shape of amplitude, can when identifying, printed matter identify anti-counterfeiting information from any one fragment, therefore there is very strong crush resistance, can fundamentally stop to adopt and take a picture, scanning waits the bootlegging behavior.
The technical solution adopted for the present invention to solve the technical problems is: the amplitude in the flexographic printing hybrid screening and frequency-modulation halftone dot are separately processed, 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 from ciphering process producing information spillover, 8 one group of binary messages in scale-of-two anti-counterfeiting information table are expanded to 16 one group of binary messages, the generation most-significant byte is 0 16 one group scale-of-two anti-counterfeiting information table entirely, 16 binary messages of i in 16 one group scale-of-two anti-counterfeiting information table group are denoted as to N
i, i is greater than 0 positive integer, and the eight-digit binary number encryption parameter is denoted as
, encryption parameter
be 0 to 256 positive integer, two binary operators and order of operation control variable are denoted as k, the positive integer that operator and order of operation control variable k are 0<=k<=3, operator
adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variable k=0
be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ 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-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=3
be defined as+, ÷ ,+, * ,-, ÷, * ,-, the ÷ computing, become the order cryptographic calculation when operator and order of operation control variable k=0 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=1 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=2 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
, set encryption parameter
initial value, because of encryption parameter
be the positive integer in 0 to 256, in 256 numbers, appoint and get
the total 256! of ten different numerals / (256-10)! plant and follow the example of, set the initial value k=0 of operator and order of operation control variable k, set 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iposition control variable i=1, first 16 binary message N from 16 one group scale-of-two anti-counterfeiting information table
1start, each 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are carried out
become the order cryptographic calculation, and each 16 binary message is being carried out
carry out i+1 and k+1 computing in the time of cryptographic calculation, next computing is pointed to
wherein i and k have increased by 1, by each 16 binary message in 16 one group scale-of-two anti-counterfeiting information table, are undertaken
become the order cryptographic calculation, generate the binary add tight defense fake information table of 16 group, the shape of amplitude is set to two kinds:
with
, wherein
be defined as the numeral 0,
be defined as numeral 1, utilize the binary add tight defense fake information of 16 group generated by circulation look-up table modulation amplitude, make the shape of amplitude in its regular hybrid screening of the alteration of form according to above-mentioned two kinds of amplitudes, 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, make it carry anti-counterfeiting information, and this anti-counterfeiting information is embedded in the 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, can provide valid certificates for genuine piece, there is stronger anti-forgery ability simultaneously, and do not increase extra false proof cost.
For solving above-mentioned technical matters, at first anti-counterfeiting information is carried out to digitizing, generate the scale-of-two anti-counterfeiting information table of 8 group, anti-counterfeiting information can be image information, Word message, trademark information etc., 8 one group of binary messages in scale-of-two anti-counterfeiting information table are expanded to 16 one group of binary messages, the generation most-significant byte is 0 16 one group scale-of-two anti-counterfeiting information table entirely, and each 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are carried out
Cryptographic calculation, generate the binary add tight defense fake information table of 16 group, utilize 16 binary messages process chnnel codings in 16 the one group binary add tight defense fake information table generated, generate the binary modulated signal of 16 group with error detecting and error correcting function.Chnnel coding can adopt the various ways such as loop coding, convolutional encoding or Turbo coding, original continuous is changed the line map, and image signal is processed (RIP) through rasterizing and hybrid screening is exported shadow tone hybrid screening picture signal, comprising amplitude and FM screened image signal, 16 one group of binary modulated signals that utilize to generate adopt the shapes of amplitude in circulation look-up table modulation system modulation hybrid screening picture signals, the shape that makes amplitude according to
With
Regular changing, make adjacent 16 amplitudes in the hybrid screening picture signal carry 16 scale-of-two anti-counterfeiting information by the change of shape, thereby be created on the hybrid screening picture signal that embeds anti-counterfeiting information in the full page site, realizes anti-counterfeit printing.
When extracting anti-counterfeiting information, at first gather the halftone dot image signal, through the fuzzy diagnosis of the shape to amplitude, differentiate the shape of amplitude, extract edge signal and the shape information of amplitude, the shape information of demodulation amplitude, export the binary modulated signal of 16 group.The binary modulated signal of 16 one group to demodulation output carries out channel-decoding, generates the scale-of-two deciphering anti-counterfeiting information table of 16 group after channel-decoding, and 16 binary messages that scale-of-two is deciphered in the anti-counterfeiting information table are denoted as H
i, it is known by ciphering process,
H during operator control variable k=0
i=
,
H during operator control variable k=1
i=
,
H during operator control variable k=2
i=
,
H during operator control variable k=3
i=
, 16 binary message H in scale-of-two deciphering anti-counterfeiting information table
iPosition control variable initial value design be i=1, first H from scale-of-two deciphering anti-counterfeiting information table
1Start, each 16 binary message in scale-of-two deciphering anti-counterfeiting information table are carried out to H
i=
Decrypt operation, solve scale-of-two anti-counterfeiting information N
i, the generation most-significant byte is 0 16 one group scale-of-two anti-counterfeiting information table entirely, removes most-significant byte, generates the scale-of-two anti-counterfeiting information table of 8 group, recovers anti-counterfeiting signal and also exports anti-counterfeiting information.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 loads the anti-counterfeiting information process flow diagram.
Fig. 2 extracts the 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, 8 one group of binary messages in scale-of-two anti-counterfeiting information table are expanded to 16 one group of binary messages, generate most-significant byte and be entirely 0 16 one group scale-of-two anti-counterfeiting information table, 16 binary messages of i group in 16 one group scale-of-two anti-counterfeiting information table are denoted as N
i, i is greater than 0 positive integer, and the eight-digit binary number encryption parameter is denoted as
, encryption parameter
Be 0 to 256 positive integer, two binary operators and order of operation control variable are denoted as k, the positive integer that operator and order of operation control variable k are 0<=k<=3, operator
Adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variable k=0
Be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ 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-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=3
Be defined as+, ÷ ,+, * ,-, ÷, * ,-, the ÷ computing, become the order cryptographic calculation when operator and order of operation control variable k=0 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=1 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=2 and be defined as
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
, set encryption parameter
Initial value, because of encryption parameter
Be the positive integer in 0 to 256, in 256 numbers, appoint and get
The total 256! of ten different numerals / (256-10)! Plant and follow the example of, set the initial value k=0 of operator and order of operation control variable k, set 16 binary message N in 16 one group scale-of-two anti-counterfeiting information table
iPosition control variable i=1, first 16 binary message N from 16 one group scale-of-two anti-counterfeiting information table
1Start, each 16 binary message in 16 one group scale-of-two anti-counterfeiting information table are carried out
Become the order cryptographic calculation, and each 16 binary message is being carried out
Carry out i+1 and k+1 computing in the time of cryptographic calculation, next computing is pointed to
Wherein i and k have increased by 1, by each 16 binary message in 16 one group scale-of-two anti-counterfeiting information table, are undertaken
Become the order cryptographic calculation, generate the binary add tight defense fake information table of 16 group, the shape of amplitude is set to two kinds:
With
, wherein
Be defined as the numeral 0,
Be defined as numeral 1,16 binary add tight defense fake informations 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.Original continuous is changed the line map, and image signal is processed (RIP) through rasterizing and hybrid screening is exported shadow tone hybrid screening picture signal, comprising amplitude and FM screened image signal.Utilize the binary modulated signal generated to adopt the modulation system of tabling look-up that circulates, the shape of amplitude in modulation hybrid screening picture signal, make in hybrid screening that the shape of amplitude is regular to change, generate the hybrid screening picture signal that embeds anti-counterfeiting information, by the circulation modulation system of tabling look-up, make adjacent 16 amplitudes generate 16 bit binary data by the change of shape, make it carry anti-counterfeiting information, and this anti-counterfeiting information is embedded in the full page site, realize anti-counterfeit printing.
In extracting anti-counterfeiting information process flow diagram 2, when extracting anti-counterfeiting information, at first gather the halftone dot image signal, fuzzy diagnosis through the shape to amplitude, differentiate the shape of amplitude, extract edge signal and the shape information of amplitude, the shape information of demodulation amplitude, export the binary modulated signal of 16 group.The binary modulated signal of 16 one group to demodulation output carries out channel-decoding, generates the scale-of-two deciphering anti-counterfeiting information table of 16 group after channel-decoding, and 16 binary messages that scale-of-two is deciphered in the anti-counterfeiting information table are denoted as H
i, it is known by ciphering process,
H during operator control variable k=0
i=
,
H during operator control variable k=1
i=
,
H during operator control variable k=2
i=
,
H during operator control variable k=3
i=
, 16 binary message H in scale-of-two deciphering anti-counterfeiting information table
iPosition control variable initial value design be i=1, first H from scale-of-two deciphering anti-counterfeiting information table
1Start, each 16 binary message in scale-of-two deciphering anti-counterfeiting information table are carried out to H
i=
Decrypt operation, solve scale-of-two anti-counterfeiting information N
i, the generation most-significant byte is 0 16 one group scale-of-two anti-counterfeiting information table entirely, removes most-significant byte, generates the scale-of-two anti-counterfeiting information table of 8 group, recovers anti-counterfeiting signal and also exports anti-counterfeiting information.
Claims (1)
1. one kind generates the binary modulated signal by anti-counterfeiting information by cryptographic calculation and chnnel coding, and anti-counterfeiting information is embedded in to multi-parameter in full page relatively synchronously increases progressively and encrypt binary system antiforging printing method, its feature by the circulation modulation system of tabling look-up
Be:Anti-counterfeiting information is carried out to digitlization, generate the binary system anti-counterfeiting information table of 8 group, anti-counterfeiting information is image information, Word message or trademark information, for preventing from ciphering process producing information spillover, 8 one group of binary messages in binary system anti-counterfeiting information table are expanded to 16 one group of binary messages, the generation most-significant byte is 0 16 one group binary system anti-counterfeiting information table entirely, and 16 binary messages of the group of the i in 16 one group binary system anti-counterfeiting information table are denoted as to N
i, i is greater than 0 positive integer, and the eight-digit binary number encryption parameter is denoted as
, encryption parameter
Be 0 to 256 positive integer, two binary operators and order of operation control variables are denoted as k, the positive integer that operator and order of operation control variables k are 0<=k<=3, operator
Adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variables k=0
Be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variables k=1
Be defined as ÷ ,+,+, * ,-, ÷ ,+, ÷, * computing, when operator and order of operation control variables k=2
Be defined as-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variables k=3
Be defined as+, ÷ ,+, * ,-, ÷, * ,-, the ÷ computing, become the order cryptographic calculation when operator and order of operation control variables k=0 and be defined as
, become the order cryptographic calculation when operator and order of operation control variables k=1 and be defined as
, become the order cryptographic calculation when operator and order of operation control variables k=2 and be defined as
, become the order cryptographic calculation when operator and order of operation control variables k=3 and be defined as
, set encryption parameter
Initial value, because of encryption parameter
Be the positive integer in 0 to 256, in 256 numbers, appoint and get
The total 256! of ten different numerals / (256-10)! Plant and follow the example of, set the initial value k=0 of operator and order of operation control variables k, set 16 binary message N in 16 one group binary system anti-counterfeiting information table
iPosition Control variable i=1, first 16 binary message N from 16 one group binary system anti-counterfeiting information table
1Start, each 16 binary message in 16 one group binary system anti-counterfeiting information table are carried out
Become the order cryptographic calculation, and each 16 binary message is being carried out
Carry out i+1 and k+1 computing in the time of cryptographic calculation, next computing is pointed to
Wherein i and k have increased by 1, by each 16 binary message in 16 one group binary system anti-counterfeiting information table, are undertaken
Become the order cryptographic calculation, generate the binary add tight defense fake information table of 16 group, the shape of amplitude is set to two kinds:
With
, wherein
Be defined as the numeral 0,
Be defined as numeral 1, utilize the binary add tight defense fake information of 16 group generated through chnnel coding, generation has 16 one group of binary modulated signals of error detecting and error correcting function, original continuous is changed the line map, and image signal is processed (RIP) through rasterizing and hybrid screening is exported halftoning hybrid screening picture signal, comprising amplitude and FM screened image signal, 16 one group of binary modulated signals that utilize to generate adopt the shapes of amplitude in circulation look-up table modulation system modulation hybrid screening picture signals, the shape that makes amplitude according to
With
Regular changing, make adjacent 16 amplitudes in the hybrid screening picture signal carry 16 binary add tight defense fake informations by the change of shape, thereby be created on the hybrid screening picture signal that embeds anti-counterfeiting information in the full page site, realize anti-counterfeit printing.
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| CN201210402739.6A CN102945436B (en) | 2012-10-22 | 2012-10-22 | Multiparameter relative synchronization increment encryption scale-of-two antiforging printing method |
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|---|---|---|---|---|
| CN1928916A (en) * | 2006-08-21 | 2007-03-14 | 顾泽苍 | Printing medium certificate documents and false proof handling method of copy thereof |
| 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 |
| US20110261376A1 (en) * | 2008-10-20 | 2011-10-27 | Steven J Simske | Method For Enhancing Security Printing |
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2012
- 2012-10-22 CN CN201210402739.6A patent/CN102945436B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928916A (en) * | 2006-08-21 | 2007-03-14 | 顾泽苍 | Printing medium certificate documents and false proof handling method of copy thereof |
| US20110261376A1 (en) * | 2008-10-20 | 2011-10-27 | Steven J Simske | Method For Enhancing Security Printing |
| 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 |
Non-Patent Citations (2)
| Title |
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| 刘连浩等: "基于十进制的加密技术研究", 《小型微型计算机***》 * |
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