CN102945402A - Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method - Google Patents

Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method Download PDF

Info

Publication number
CN102945402A
CN102945402A CN2012104018151A CN201210401815A CN102945402A CN 102945402 A CN102945402 A CN 102945402A CN 2012104018151 A CN2012104018151 A CN 2012104018151A CN 201210401815 A CN201210401815 A CN 201210401815A CN 102945402 A CN102945402 A CN 102945402A
Authority
CN
China
Prior art keywords
binary
order
group
counterfeiting information
operator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012104018151A
Other languages
Chinese (zh)
Inventor
董武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Graphic Communication
Original Assignee
Beijing Institute of Graphic Communication
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Graphic Communication filed Critical Beijing Institute of Graphic Communication
Priority to CN2012104018151A priority Critical patent/CN102945402A/en
Publication of CN102945402A publication Critical patent/CN102945402A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Editing Of Facsimile Originals (AREA)

Abstract

The invention relates to a multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method which comprises the following steps: generating binary anti-counterfeiting information into a binary modulation signal through encryption algorithm and channel coding and embedding the anti-counterfeiting information into a whole page through the orderly change of the shape of an amplitude modulation dot in a circular table look-up method modulation manner. When printed matters are identified, the anti-counterfeiting information can be identified from any one fragment; and the multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method can be widely applied to the field of anti-counterfeiting of printed matters.

Description

Multiparameter strides, and moving to right goes forward one by one encrypts the scale-of-two antiforging printing method
affiliated technical field:
The present invention relates to a kind of anti-counterfeiting printing technology, a kind of multiparameter scale-of-two anti-counterfeiting printing technology that strides that moving to right goes forward one by one and encrypt particularly, 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
Figure 721649DEST_PATH_IMAGE001
, encryption parameter
Figure 375746DEST_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
Figure 557329DEST_PATH_IMAGE002
adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variable k=0
Figure 871635DEST_PATH_IMAGE002
be defined as+, * ,-, ÷ ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=1
Figure 771458DEST_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 265336DEST_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 750544DEST_PATH_IMAGE003
, become the order cryptographic calculation when operator and order of operation control variable k=1 and be defined as
Figure 763761DEST_PATH_IMAGE004
, become the order cryptographic calculation when operator and order of operation control variable k=2 and be defined as
Figure 133563DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
Figure 148792DEST_PATH_IMAGE006
, set encryption parameter
Figure 945847DEST_PATH_IMAGE001
initial value, because of encryption parameter
Figure 180781DEST_PATH_IMAGE001
be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 354274DEST_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 489589DEST_PATH_IMAGE003
become the order cryptographic calculation, and each 16 binary message is being carried out
Figure 457545DEST_PATH_IMAGE003
carry out i+1 and k+1 computing in the time of cryptographic calculation, next computing is pointed to
Figure 179776DEST_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 16013DEST_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: with
Figure 646157DEST_PATH_IMAGE008
, wherein
Figure 229585DEST_PATH_IMAGE007
be defined as the numeral 0,
Figure 603935DEST_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 589208DEST_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 525066DEST_PATH_IMAGE007
with
Figure 720424DEST_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= , H during operator control variable k=1 i= , H during operator control variable k=2 i=
Figure 720369DEST_PATH_IMAGE005
, H during operator control variable k=3 i=
Figure 137444DEST_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 620640DEST_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, and encryption flow figure as shown in Figure 1.
Fig. 2 extracts the anti-counterfeiting information process flow diagram, and the demodulation process flow diagram as shown in Figure 2.
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 439560DEST_PATH_IMAGE001
, encryption parameter
Figure 91121DEST_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
Figure 762536DEST_PATH_IMAGE002
adopt+,-, *, tetra-kinds of computings of ÷, when operator and order of operation control variable k=0
Figure 157746DEST_PATH_IMAGE002
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
Figure 545313DEST_PATH_IMAGE002
be defined as-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variable k=3
Figure 812346DEST_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 135880DEST_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 424221DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variable k=3 and be defined as
Figure 303184DEST_PATH_IMAGE006
, set encryption parameter
Figure 40196DEST_PATH_IMAGE001
initial value, because of encryption parameter
Figure 189680DEST_PATH_IMAGE001
be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 744158DEST_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 720204DEST_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 655111DEST_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 639813DEST_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 368735DEST_PATH_IMAGE007
with
Figure 572183DEST_PATH_IMAGE008
, wherein be defined as the numeral 0,
Figure 202327DEST_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, 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 51782DEST_PATH_IMAGE004
, H during operator control variable k=2 i=
Figure 404266DEST_PATH_IMAGE005
, 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=
Figure 909383DEST_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 by the circulation modulation system of tabling look-up, anti-counterfeiting information is embedded in to multi-parameter in the full page binary system antiforging printing method that strides that moving to right goes forward one by one and encrypt, 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 2012104018151100001DEST_PATH_IMAGE001
, encryption parameter
Figure 751420DEST_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
Figure 652642DEST_PATH_IMAGE002
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
Figure 755913DEST_PATH_IMAGE002
Be defined as ÷ ,+,+, * ,-, ÷ ,+, ÷, * computing, when operator and order of operation control variables k=2
Figure 87496DEST_PATH_IMAGE002
Be defined as-, ÷ ,+, * ,+, ÷, * ,-, the ÷ computing, when operator and order of operation control variables k=3
Figure 166311DEST_PATH_IMAGE002
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 2012104018151100001DEST_PATH_IMAGE003
, become the order cryptographic calculation when operator and order of operation control variables k=1 and be defined as
Figure 788922DEST_PATH_IMAGE004
, become the order cryptographic calculation when operator and order of operation control variables k=2 and be defined as
Figure 2012104018151100001DEST_PATH_IMAGE005
, become the order cryptographic calculation when operator and order of operation control variables k=3 and be defined as
Figure 311301DEST_PATH_IMAGE006
, set encryption parameter
Figure 261940DEST_PATH_IMAGE001
Initial value, because of encryption parameter
Figure 770544DEST_PATH_IMAGE001
Be the positive integer in 0 to 256, in 256 numbers, appoint and get
Figure 123028DEST_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 190210DEST_PATH_IMAGE003
Become the order cryptographic calculation, and each 16 binary message is being carried out
Figure 628144DEST_PATH_IMAGE003
Carry out i+1 and k+1 computing in the time of cryptographic calculation, next computing is pointed to
Figure 674860DEST_PATH_IMAGE004
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 147429DEST_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 2012104018151100001DEST_PATH_IMAGE007
With
Figure 11611DEST_PATH_IMAGE008
, wherein
Figure 936842DEST_PATH_IMAGE007
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
Figure 347281DEST_PATH_IMAGE007
With
Figure 257730DEST_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.
CN2012104018151A 2012-10-22 2012-10-22 Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method Pending CN102945402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104018151A CN102945402A (en) 2012-10-22 2012-10-22 Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104018151A CN102945402A (en) 2012-10-22 2012-10-22 Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method

Publications (1)

Publication Number Publication Date
CN102945402A true CN102945402A (en) 2013-02-27

Family

ID=47728341

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012104018151A Pending CN102945402A (en) 2012-10-22 2012-10-22 Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method

Country Status (1)

Country Link
CN (1) CN102945402A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101022499A (en) * 2007-03-06 2007-08-22 北京大学 Method for abstracting graph and text infromation utilizing half-hue image networking hiding
CN101079147A (en) * 2007-06-25 2007-11-28 中山大学 Multiple bit digital watermark method capable of resisting printing, scanning and geometric transformation
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101022499A (en) * 2007-03-06 2007-08-22 北京大学 Method for abstracting graph and text infromation utilizing half-hue image networking hiding
CN101079147A (en) * 2007-06-25 2007-11-28 中山大学 Multiple bit digital watermark method capable of resisting printing, scanning and geometric transformation
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
冯登国，裴定一: "《密码学引导》", 30 April 1999, 科学出版社 *

Similar Documents

Publication Publication Date Title
CN102945402A (en) Multi-parameter stride right shift progressive encrypted binary anti-counterfeiting printing method
CN102945401A (en) Multi-parameter stride right shift incremental encrypted binary anti-counterfeiting printing method
CN102945415A (en) Multi-parameter opposite synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945420A (en) Multi-parameter homodromous synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945405A (en) Multi-parameter reverse synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945498A (en) Multi-parameter progressive variable-sequence encrypted binary anti-counterfeiting printing method
CN102945488A (en) Multi-parameter homodromous synchronous incremental encrypted binary anti-counterfeiting printing method
CN102945429A (en) Multi-parameter three-dimensional encrypted binary anti-counterfeiting printing method
CN102945404A (en) Multi-parameter reverse synchronous incremental encrypted binary anti-counterfeiting printing method
CN102945410A (en) Multi-parameter variable-sequence three-dimensional encrypted binary anti-counterfeiting printing method
CN102945417A (en) Multi-parameter bivariate opposite synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945460A (en) Multi-parameter three-dimensional incremental encrypted binary anti-counterfeiting printing method
CN102945393A (en) Multi-parameter bivariate homodromous synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945446A (en) Multi-parameter displacement three-dimensional incremental encrypted binary anti-counterfeiting printing method
CN102945493A (en) Multi-parameter double progressive encrypted binary anti-counterfeiting printing method
CN102945409A (en) Multi-parameter displacement double encrypted binary anti-counterfeiting printing method
CN102945497A (en) Multi-parameter displacement first-order incremental encrypted binary anti-counterfeiting printing method
CN102945485A (en) Binary anti-fake printing method by multiparameter left-shift deflection stepped progressing encryption
CN102945419A (en) Multi-parameter bivariate reverse synchronous progressive encrypted binary anti-counterfeiting printing method
CN102945411A (en) Multi-parameter double encrypted binary anti-counterfeiting printing method
CN102945495A (en) Multi-parameter double incremental encrypted binary anti-counterfeiting printing method
CN102945482A (en) Binary anti-fake printing method by multiparameter opposite-direction synchronous-progressing encryption
CN102945406A (en) Multi-parameter transposition variable-sequence encrypted binary anti-counterfeiting printing method
CN102945476A (en) Multi-parameter transposition encrypted binary anti-counterfeiting printing method
CN102945448A (en) Single-parameter displacement univariate cycle encrypted binary anti-counterfeiting printing method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20130227