CN102945472B - Single-parameter, gradient, reverse, synchronous and increasing encryption type binary anti-counterfeit printing method - Google Patents

Abstract

A method for binary anti-counterfeiting printing with single-parameter gradient reverse synchronous incremental encryption, which can pass binary anti-counterfeiting information through Encryption operations and channel coding generate binary modulation signals, and the anti-counterfeiting information is embedded in the entire page in the orderly change of the shape of the amplitude modulation dots through the modulation method of the circular look-up method, and the anti-counterfeiting information can be identified from any fragment when identifying printed matter. It can be widely used in the anti-counterfeiting field of printed matter.

Description

Single-parameter gradient reverse synchronous incremental encryption binary anti-counterfeiting printing method

Technical field:

The invention relates to an anti-counterfeiting printing technology, in particular to a single-parameter gradual change reverse synchronous increasing encryption binary anti-counterfeiting printing technology, and the anti-counterfeiting printing technology can be used for anti-counterfeiting of various printed products.

Background technique:

The existing relatively common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels. And the same type of product uses the same label, because the anti-counterfeiting label is easier to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing the product to be confused, so it is difficult to effectively prevent counterfeiting. The second is the password anti-counterfeiting label. The method adopted is to compile a set of numbers for each product, and the codes of each product are different. The numbers are printed on the labels and covered, and the numbers are stored Into the computer database that can be inquired by consumers. When consumers purchase products, they input the numbers on the logo into the computer database through telephone or networked computer for comparison and identification. The same is true, and the difference is false. The method is simple and easy to identify. It is not easy to forge, but in actual use, because the encoded data is uniformly generated by the computer, the label is printed. The code data representing the authenticity of the product may be illegally copied and falsified. At the same time, the code can also be recycled from the code on the product that has not been inquired to make a label and affixed to the fake product. The anti-counterfeiting effect is difficult to guarantee. The third is texture anti-counterfeiting, which uses the texture features on the label to prevent counterfeiting. Although it is difficult to forge, since only the serial number of the label is set, and it is a clear code, each label can be queried repeatedly, and counterfeiters can store it in the warehouse. The clerk or salesperson plagiarizes the serial number on the label and the necessary texture characteristics reflected in the query, that is, the presence or absence of phenomena in the grid, and then forges them in batches according to this characteristic. In summary, the existing anti-counterfeiting methods have certain shortcomings, and thus cannot fundamentally prevent counterfeit products.

Invention content:

In order to overcome the shortcomings of the existing anti-counterfeiting printing technology for various printed products, the present invention improves the existing technology in view of the shortcomings of the existing anti-counterfeiting printing technology for printed products, and proposes a binary encryption signal to modulate the shape of the AM dots of printed products Encrypted anti-counterfeiting printing technology, this anti-counterfeiting printing technology embeds anti-counterfeiting information in the entire page by changing the shape of AM dots, and can identify anti-counterfeiting information from any fragment when identifying printed matter, so it is highly resistant to shattering and can be read from Fundamentally put an end to the use of photography, scanning and other illegal copying.

The technical solution adopted by the present invention to solve the technical problem is: separately process the amplitude modulation dots and frequency modulation dots in the mixed screen of flexographic printing, and use image information, text information, trademark information and other anti-counterfeiting information to generate 8-bit binary Anti-counterfeiting information table, in order to prevent information overflow during the encryption process, the 8-bit binary information in the binary anti-counterfeiting information table is expanded to 16-bit binary information, and a 16-bit binary anti-counterfeiting information with all 0s in the upper 8 bits is generated Table, the i-th group of 16-bit binary information in the 16-bit binary anti-counterfeiting information table is recorded as N _i , i is a positive integer greater than 0, the eight-bit binary encryption parameter is recorded as C, and the encryption parameter C is 0≦C≦ 256 integers, two-bit binary operator and operation sequence control variable are recorded as k, operator and operation sequence control variable k is an integer of 0≦k≦3, operators ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k adopt four operations + _, -, ×, ÷, operator and operation order control variable k=0, ¹ _{k , 2 k} ^{, 3} _{k ,} ⁴ _k , ^{5 k} , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as +, ×, -, ÷, +, ÷, ×, -, ÷ operations, the operator and operation sequence control variable k = 1 when 1 ^k _, ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as ÷, +, +, ×, -, ÷, +, ÷, × operations, and the operator and operation order control variable k= 2: ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as -, ÷, +, ×, +, ÷, ×, -, ÷ operations. When the operation sequence control variable k=3, ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as +, ÷, +, ×, -, ÷, ×, -, ÷ operation, operator and operation sequence control variable k = 0 time variable sequence encryption operation is defined as (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k ( C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ , operator and operation sequence control variable k=1 time variable sequence The encryption operation is defined as (C+k) ¹ _k (C+k) ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+ k) ⁸ _k N ₁ ⁹ _k N ₁ , operator and operation sequence control variable k=2 time-varying sequence encryption operation is defined as (C+k) ¹ _k N ₁ (C+k) ² _k N ₁ ³ _k N ₁ ^4k (C ₊ k ₎ ^5k (C+k) ⁶ _k (C+k) ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , operator and operation sequence control variable k=3 time-varying sequence encryption operation is defined as N ₁ ¹ _k ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k N ₁ ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , set the initial value of the encryption parameter C, set the operator and operation The initial value k=0 of sequence control variable k, the position control variable i=1 of 16 binary information N _i in setting 16 groups of binary anti-counterfeiting information tables, from the first 16 in 16 groups of binary anti-counterfeiting information tables Bit binary information N ₁ starts, carry out (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k for each 16-bit binary information in the 16-bit binary anti-counterfeiting information table (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ variable order encryption operation, and each 16-bit binary Information progress (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C +k) ⁸ _k (C+k) ⁹ _k N ₁ Perform i+1 and k+1 operations at the same time as the encryption operation, so that the next operation points to (C+k) ¹ _k (C+k) ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k N ₁ ⁹ _k N ₁ where both i and k are incremented by 1, by Each 16-bit binary information in the 16-bit binary anti-counterfeiting information table carries out (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ^{1 4} _k (C+k) ⁵ _k ( C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ Sequential encryption operation, generating a 16-bit binary encrypted anti-counterfeiting information table, the shape of the AM dot There are two types: □ and ◇, where □ is defined as the number 0, and ◇ is defined as the number 1, and the generated 16-bit binary encrypted anti-counterfeiting information is used to modulate the AM network through the circular look-up table method, so that it can be regularly in accordance with the above The shapes of the two kinds of AM dots change the shape of the AM dots in the hybrid screening, so that the shape of the AM dots in the mixed screening changes regularly. After modulation, 16 adjacent AM dots form a group of 16-bit binary information, which makes it carry Anti-counterfeiting information, and embedding the anti-counterfeiting information in the entire page network, can more effectively combat illegal copying based on cameras, scanners, and electronic documents. By non-obviously embedding extractable anti-counterfeiting information in the printed matter, effective proof can be provided for the genuine product, and at the same time, it has strong anti-counterfeiting ability without adding additional anti-counterfeiting costs.

In order to solve the above-mentioned technical problems, the anti-counterfeiting information is digitized at first, and a binary anti-counterfeiting information table of 8 bits is generated. The anti-counterfeiting information can be image information, text information, trademark information, etc. The binary information is expanded into a group of 16 binary information, and a 16-bit binary anti-counterfeiting information table with all 0s in the upper 8 bits is generated, and (C+k ) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k ( C+k) ⁹ _k N ₁ encryption operation to generate a 16-bit group binary encrypted anti-counterfeiting information table, use the 16-bit binary information in the generated 16-bit binary encrypted anti-counterfeiting information table to undergo channel coding to generate an error detection and anti-counterfeiting information table A 16-bit binary modulation signal for error correction functions. Channel coding can adopt various forms such as cyclic coding, convolutional coding or Turbo coding, etc., and the original continuous modulation image signal is rasterized (RIP) and mixed and screened to output a halftone mixed screened image signal, including amplitude modulation dots and The FM dot image signal uses the generated 16-bit binary modulation signal to modulate the shape of the AM dot in the mixed screen image signal by means of a circular look-up table modulation method, so that the shape of the AM dot changes according to □ and ◇ regularly, so that The 16 adjacent AM dots in the mixed screened image signal carry 16-bit binary anti-counterfeiting information through shape changes, thereby generating a mixed screened image signal with anti-counterfeiting information embedded in the entire page dots, realizing anti-counterfeiting printing.

When extracting anti-counterfeiting information, first collect the network dot image signal, through the fuzzy recognition of the shape of the AM network dot, distinguish the shape of the AM network dot, extract the edge signal and shape information of the AM network dot, demodulate the shape information of the AM network dot, and output 16-bit one Set of binary modulated signals. Perform channel decoding on the 16-bit binary modulated signal output by demodulation, generate a 16-bit binary decryption anti-counterfeiting information table after channel decoding, record the 16-bit binary information in the binary decryption anti-counterfeiting information table as H _i , pass The encryption process shows that,

When operator control variable k=0, H _i ＝(C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ , when operator control variable k=1, H _i ＝(C+k) ¹ _k (C+k) ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k N ₁ ⁹ _k N ₁ , when the operator control variable k＝2 H _i ＝(C+k) ¹ _k N ₁ ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , when operator control variable k=3, H _i ＝N ₁ ¹ _k N ₁ ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k N ₁ ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , the initial value of the position control variable of the 16-bit binary information H _i in the binary decrypted anti-counterfeiting information table is set to i=1, starting from the first bit H ₁ in the binary decrypted anti-counterfeiting information table, for Each 16-bit binary information in the binary decryption anti-counterfeiting information table is H _i =(C+k) ¹ _k (C+k) ² _k (C+K) ³ _k N ₁ 4k(C+k) ⁵ _k (C +k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ decryption operation, solve the binary anti-counterfeiting information N _i , and generate a 16-bit one whose upper 8 bits are all 0 Group binary anti-counterfeiting information table, remove high 8 bits, generate 8-bit binary anti-counterfeiting information table, recover anti-counterfeiting signal and output anti-counterfeiting information.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 is a flow chart of loading anti-counterfeiting information.

Figure 2 is a flow chart of extracting anti-counterfeiting information.

Detailed ways

In flow chart 1 of loading anti-counterfeiting information, the original anti-counterfeiting information (image, text, trademark) is digitized to generate an 8-bit binary anti-counterfeiting information table, and the 8-bit binary information in the binary anti-counterfeiting information table is expanded to 16 One set of binary information, generate a 16-bit binary anti-counterfeiting information table whose upper 8 bits are all 0, the i-th group of 16-bit binary information in the 16-bit binary anti-counterfeiting information table is recorded as N _i , i is greater than 0 Positive integer, the eight-digit binary encryption parameter is denoted as C, the encryption parameter C is an integer of 0≦C≦256, the two-digit binary operator and the operation order control variable are denoted as k, and the operator and operation order control variable k is 0≦k Integers ≦3, operators ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k use +, -, ×, ÷ four operations, operators and operation order When the control variable k=0, ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as +, ×, -, ÷, +, ÷, ×, -, ÷ operation, operator and operation order control variable k=1 ^{, 1} _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as ÷, +, +, ×, －, ÷, +, ÷, × operation, operator and operation _sequence control variable k=2, ¹ _k , ² _k , ³ _k , ⁴ _k , ⁵ _k , 6 k ^{, 7} _k , ⁸ _k , ⁹ _k are defined as -, ÷, +, ×, +, ÷, ×, -, ÷ operation, operator _and operation sequence control variable k = 3: ¹ _k ^{, 2} k , 3 _k , ⁴ _k , ⁵ _k , ⁶ _k , ⁷ _k , ⁸ _k , ⁹ _k are defined as +, ÷, +, ×, -, ÷, ×, -, ÷ operations, operators and operation sequence control variable k = 0, variable sequence encryption operations are defined as (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+ k) ⁹ _k N ₁ , the operator and operation sequence control variable k=1, the variable sequence encryption operation is defined as (C+k) ¹ _k (C+k) ² _k N ₁ (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k N ₁ ⁹ _k N ₁ , operator and operation sequence control variable k=2 time-varying sequence encryption The operation is defined as (C+k) ¹ _k N ₁ ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , operator and operation sequence control The variable k = 3 time-varying encryption operation is defined as N ₁ ¹ _k ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k N ₁ ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , set the initial value of the encryption parameter C, set the initial value k=0 of the operator and operation order control variable k, set the position of 16 binary information N _i in the 16-bit binary anti-counterfeiting information table Control variable i=1, from first 16 binary information N ₁ in 16 binary anti-counterfeiting information tables, carry out (C+k) to each 16 binary information in 16 binary anti-counterfeiting information tables ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C +k) ⁹ _k N ₁ variable order encryption operation, and perform (C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+ k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ Encryption operations are performed simultaneously with i+1 and k+1 operations, so that the following One operation points to (C+k) ¹ _k (C+k) ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k ) ⁸ _k N ₁ ⁹ _k N ₁ where both i and k are increased by 1, by performing (C+k) ¹ _k (C+k) ² on each 16-bit binary information in the 16-bit binary anti-counterfeiting information table _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ change Sequential encryption operation to generate a 16-bit binary encrypted anti-counterfeiting information table. The shape of the AM dots is set to two types: □ and ◇, where □ is defined as the number 0 and ◇ is defined as the number 1, and the generated 16-bit binary encrypted anti-counterfeiting information After channel coding, a binary modulated signal with error detection and error correction functions is generated. Channel coding can adopt various forms such as cyclic coding, convolutional coding or Turbo coding. The original continuous tone image signal is rasterized (RIP) and mixed and screened to output a halftone mixed screen image signal, including amplitude modulation dot and frequency modulation dot image signals. Using the generated binary modulation signal, the shape of the AM dots in the hybrid screened image signal is modulated by the circular look-up table modulation method, so that the shape of the AM dots in the hybrid screened is changed regularly, and a hybrid screened image signal embedded with anti-counterfeiting information is generated. Through the cyclic look-up table modulation method, the adjacent 16-bit AM dots can generate a 16-bit binary data through shape changes, so that they can carry anti-counterfeiting information, and the anti-counterfeiting information can be embedded in the entire page dots to realize anti-counterfeiting printing.

In the flow chart 2 of extracting anti-counterfeiting information, when extracting anti-counterfeiting information, first collect the dot image signal, through the fuzzy recognition of the shape of the AM dot, distinguish the shape of the AM dot, extract the edge signal and shape information of the AM dot, and demodulate the AM dot The shape information of the screen dots, output a 16-bit binary modulation signal. Perform channel decoding on the 16-bit binary modulation signal output by demodulation, generate a 16-bit binary decryption anti-counterfeiting information table after channel decoding, record the 16-bit binary information in the binary decryption anti-counterfeiting information table as H _i , pass The encryption process shows that,

When operator control variable k=0, H _i ＝(C+k) ¹ _k (C+k) ² _k (C+k) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ , when operator control variable k=1, H _i ＝(C+k) ¹ _k (C+k) ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k N ₁ ⁹ _k N ₁ , when the operator control variable k＝2 H _i ＝(C+k) ¹ _k N ₁ ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k (C+k) ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , when operator control variable k=3, H _i ＝N ₁ ¹ _k N ₁ ² _k N ₁ ³ _k N ₁ ⁴ _k (C+k) ⁵ _k (C+k) ⁶ _k N ₁ ⁷ _k N ₁ ⁸ _k N ₁ ⁹ _k N ₁ , the initial value of the position control variable of the 16-bit binary information H _i in the binary decrypted anti-counterfeiting information table is set to i=1, starting from the first bit H ₁ in the binary decrypted anti-counterfeiting information table, for Each 16-bit binary information in the binary decryption anti-counterfeiting information table is performed H _i =(C+k) ¹ _k (C+k) ² _k (C+K) ³ _k N ₁ ⁴ _k (C+k) ⁵ _k ( C+k) ⁶ _k (C+k) ⁷ _k (C+k) ⁸ _k (C+k) ⁹ _k N ₁ decryption operation, solve the binary anti-counterfeiting information N _i , and generate 16 bits whose upper 8 bits are all 0 A group of binary anti-counterfeiting information tables, remove the high 8 bits, generate a binary anti-counterfeiting information table of 8 bits, restore the anti-counterfeiting signal and output the anti-counterfeiting information.

Claims (1)

1. anti-counterfeiting information is generated binary modulated signal by cryptographic calculation and channel coding by one kind, and the one-parameter alternation reverse sync increment encryption binary system antiforging printing method that anti-counterfeiting information is embedded in full page by modulation system of tabling look-up by circulating, it is characterized in that: anti-counterfeiting information is carried out 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 produces information spillover, 8 one group of binary messages in binary system anti-counterfeiting information table are expanded to 16 one group of binary messages, generate 16 the one group binary system anti-counterfeiting information table that most-significant byte is 0 entirely, i-th group of 16 binary message in 16 one group binary system 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 integer of 0≤C≤256, and two binary operators and order of operation control variables are denoted as k, and operator and order of operation control variables k are the integer of 0≤k≤3, operator@ ¹ _k,@ ² _k,@ ³ _k,@ ⁴ _k,@ ⁵ _k,@ ⁶ _k,@ ⁷ _k,@ ⁸ _k,@ ⁹ _kadopt+,-, ×, ÷ tetra-kinds of computings ,@when operator and order of operation control variables k=0 ¹ _k,@ ² _k,@ ³ _k,@ ⁴ _k,@ ⁵ _k,@ ⁶ _k,@ ⁷ _k,@ ⁸ _k,@ ⁹ _kBe defined as+, × ,-, ÷ ,+, ÷, × ,-, ÷ computing ,@when operator and order of operation control variables k=1 ¹ _k,@ ² _k,@ ³ _k,@ ⁴ _k,@ ⁵ _k,@ ⁶ _k,@ ⁷ _k,@ ⁸ _k,@ ⁹ _kBe defined as ÷ ,+,+, × ,-, ÷ ,+, ÷, × computing ,@when operator and order of operation control variables k=2 ¹ _k,@ ² _k,@ ³ _k,@ ⁴ _k,@ ⁵ _k,@ ⁶ _k,@ ⁷ _k,@ ⁸ _k,@ ⁹ _kBe defined as-, ÷ ,+, × ,+, ÷, × ,-, ÷ computing ,@when operator and order of operation control variables k=3 ¹ _k,@ ² _k,@ ³ _k,@ ⁴ _k,@ ⁵ _k,@ ⁶ _k,@ ⁷ _k,@ ⁸ _k,@ ⁹ _kBe defined as+, ÷ ,+, × ,-, ÷, × ,-, ÷ computing, when operator and order of operation control variables k=0 become sequence cryptographic calculation be defined as (C+k)@ ¹ _k(C+k)@ ² _k(C+k)@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _k(C+k)@ ⁹ _kN ₁, become sequence cryptographic calculation when operator and order of operation control variables k=1 and it be defined as (C+k)@ ¹ _k(C+k)@ ² _kN ₁@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _kN ₁@ ⁹ _kN ₁, become sequence cryptographic calculation when operator and order of operation control variables k=2 and it be defined as (C+k)@ ¹ _kN ₁@ ² _kN ₁@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _kN ₁@ ⁸ _kN ₁@ ⁹ _kN ₁, become sequence cryptographic calculation when operator and order of operation control variables k=3 and it be defined as N ₁@ ¹ _kN ₁@ ² _kN ₁@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _kN ₁@ ⁷ _kN ₁@ ⁸ _kN ₁@ ⁹ _kN ₁, the initial value of setting encryption parameter C, the initial value k=0 of setting operator and order of operation control variables k, sets 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 (C+k)@ ¹ _k(C+k)@ ² _k(C+k)@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _k(C+k)@ ⁹ _kN ₁Become sequence cryptographic calculation, and each 16 binary message is being carried out (C+k)@ ¹ _k(C+k)@ ² _k(C+k)@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _k(C+k)@ ⁹ _kN ₁Cryptographic calculation carry out i+1 and k+1 computing simultaneously, make next computing point to (C+k)@ ¹ _k(C+k)@ ² _kN ₁@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _kN ₁@ ⁹ _kN ₁Wherein i and k both increases 1, by each 16 binary message in 16 one group binary system anti-counterfeiting information table are carried out (C+k)@ ¹ _k(C+k)@ ² _k(C+k)@ ³ _kN ₁@ ⁴ _k(C+k)@ ⁵ _k(C+k)@ ⁶ _k(C+k)@ ⁷ _k(C+k)@ ⁸ _k(C+k)@ ⁹ _kN ₁Becoming sequence cryptographic calculation, generate the binary system encryption anti-fake information table of 16 group, the shape of amplitude is set to two kinds: With Wherein Be defined as numeral 0, It is defined as numeral 1, utilize the binary system encryption anti-fake information of 16 group generated through channel 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 processes (RIP) and hybrid screening output halftoning hybrid screening picture signal through rasterizing, comprising amplitude and FM screened image signal, utilize 16 the one group of binary modulated signals generated to adopt the shape of amplitude in circulation look-up table modulation systems modulation hybrid screening picture signals, make the shape of amplitude according to With Regular change, adjacent 16 amplitudes in hybrid screening picture signal are made to carry 16 binary system encryption anti-fake information by the change of shape, thus it is created on the hybrid screening picture signal embedding anti-counterfeiting information in full page site, it is achieved anti-counterfeit printing.