CN102945481A - Binary anti-fake printing method by multiparameter left-shift deflection stepped ascending encryption - Google Patents

Binary anti-fake printing method by multiparameter left-shift deflection stepped ascending encryption Download PDF

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CN102945481A
CN102945481A CN2012104042057A CN201210404205A CN102945481A CN 102945481 A CN102945481 A CN 102945481A CN 2012104042057 A CN2012104042057 A CN 2012104042057A CN 201210404205 A CN201210404205 A CN 201210404205A CN 102945481 A CN102945481 A CN 102945481A
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counterfeiting information
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CN102945481B (en
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张立君
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Beijing Institute of Graphic Communication
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Abstract

The invention relates to a binary anti-fake printing method by multiparameter left-shift deflection stepped 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

The multiparameter displacement that moves to left strides to increase progressively and encrypts the scale-of-two antiforging printing method
affiliated technical field:
The present invention relates to a kind of anti-counterfeiting printing technology, particularly the displacement that moves to left of a kind of multiparameter strides to increase 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
Figure 244938DEST_PATH_IMAGE001
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
Figure 484475DEST_PATH_IMAGE002
be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=1
Figure 357622DEST_PATH_IMAGE002
be defined as ÷ ,+,+, * ,-, ÷ ,+, ÷, * computing, when operator and order of operation control variable k=2
Figure 564612DEST_PATH_IMAGE002
be defined as-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=3
Figure 615745DEST_PATH_IMAGE002
be defined as+, ÷ ,+, * ,-, ÷, * ,-, the ÷ computing, become the order cryptographic calculation when operator and order of operation control variable k=0 and be defined as
Figure 727926DEST_PATH_IMAGE003
, 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
Figure 216994DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
Figure 688295DEST_PATH_IMAGE006
, set encryption parameter initial value, because of encryption parameter
Figure 800925DEST_PATH_IMAGE001
be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 982507DEST_PATH_IMAGE001
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
Figure 456357DEST_PATH_IMAGE003
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
Figure 245507DEST_PATH_IMAGE003
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:
Figure 871660DEST_PATH_IMAGE007
with
Figure 930883DEST_PATH_IMAGE008
, wherein
Figure 487635DEST_PATH_IMAGE007
be defined as the numeral 0,
Figure 643810DEST_PATH_IMAGE008
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
Figure 378548DEST_PATH_IMAGE003
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
Figure 987384DEST_PATH_IMAGE007
with
Figure 82248DEST_PATH_IMAGE008
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=
Figure 30612DEST_PATH_IMAGE003
,
H during operator control variable k=1 i=
Figure 998568DEST_PATH_IMAGE004
,
H during operator control variable k=2 i=
Figure 281651DEST_PATH_IMAGE005
,
H during operator control variable k=3 i=
Figure 993255DEST_PATH_IMAGE006
, 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=
Figure 61705DEST_PATH_IMAGE003
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
Figure 387513DEST_PATH_IMAGE001
, 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
Figure 158340DEST_PATH_IMAGE002
adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variable k=0
Figure 143614DEST_PATH_IMAGE002
be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=1
Figure 640323DEST_PATH_IMAGE002
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
Figure 436558DEST_PATH_IMAGE002
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
Figure 943948DEST_PATH_IMAGE004
, become the order cryptographic calculation when operator and order of operation control variable k=2 and be defined as
Figure 439652DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
Figure 31170DEST_PATH_IMAGE006
, set encryption parameter initial value, because of encryption parameter
Figure 773090DEST_PATH_IMAGE001
be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 552827DEST_PATH_IMAGE001
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
Figure 134987DEST_PATH_IMAGE003
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
Figure 709505DEST_PATH_IMAGE004
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
Figure 163489DEST_PATH_IMAGE003
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:
Figure 362389DEST_PATH_IMAGE007
with
Figure 968951DEST_PATH_IMAGE008
, wherein
Figure 962315DEST_PATH_IMAGE007
be defined as the numeral 0,
Figure 903595DEST_PATH_IMAGE008
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=
Figure 367254DEST_PATH_IMAGE004
,
H during operator control variable k=2 i=
Figure 718470DEST_PATH_IMAGE005
,
H during operator control variable k=3 i=
Figure 960095DEST_PATH_IMAGE006
, 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=
Figure 438481DEST_PATH_IMAGE003
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 the displacement that moves to left of multi-parameter in full page strides to increase progressively and encrypt the binary system antiforging printing method by the circulation modulation system of tabling look-up, It is characterized in that: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
Figure 176888DEST_PATH_IMAGE001
, encryption parameter
Figure 58125DEST_PATH_IMAGE001
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
Figure 692685DEST_PATH_IMAGE002
Be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variables k=1
Figure 274845DEST_PATH_IMAGE002
Be defined as ÷ ,+,+, * ,-, ÷ ,+, ÷, * computing, when operator and order of operation control variables k=2
Figure 823638DEST_PATH_IMAGE002
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
Figure 241030DEST_PATH_IMAGE003
, become the order cryptographic calculation when operator and order of operation control variables k=1 and be defined as
Figure 174351DEST_PATH_IMAGE004
, become the order cryptographic calculation when operator and order of operation control variables k=2 and be defined as
Figure 30181DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variables k=3 and be defined as
Figure 226807DEST_PATH_IMAGE006
, set encryption parameter
Figure 715557DEST_PATH_IMAGE001
Initial value, because of encryption parameter
Figure 905099DEST_PATH_IMAGE001
Be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 366167DEST_PATH_IMAGE001
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
Figure 530432DEST_PATH_IMAGE003
Become the order cryptographic calculation, and each 16 binary message is being carried out
Figure 959008DEST_PATH_IMAGE003
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
Figure 815286DEST_PATH_IMAGE003
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:
Figure 620560DEST_PATH_IMAGE007
With
Figure 83903DEST_PATH_IMAGE008
, wherein
Figure 365979DEST_PATH_IMAGE007
Be defined as the numeral 0,
Figure 50908DEST_PATH_IMAGE008
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
Figure 556975DEST_PATH_IMAGE007
With
Figure 710876DEST_PATH_IMAGE008
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.
CN201210404205.7A 2012-10-22 2012-10-22 Binary anti-fake printing method by multiparameter left-shift deflection stepped ascending encryption Expired - Fee Related CN102945481B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
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
CN101699845A (en) * 2009-10-20 2010-04-28 北京印刷学院 Encryption counterfeit printing technology of frequency modulated halftone dot space position for pseudo random signal modulation printed matter

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
CN101699845A (en) * 2009-10-20 2010-04-28 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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