CN112149774A - Chinese character commodity anti-counterfeiting code generation method - Google Patents

Abstract

The invention discloses a method for generating an anti-counterfeiting code for Chinese characters, comprising the following steps: converting a Chinese character product identification code A, which represents the unique identity information of a certain product, to numerical data and 8-bit binary conversion, and performing a binary supplement operation to obtain a binary sequence

and

The initial value and parameters of the chaotic system, the starting position of extraction, and the number of extraction intervals are calculated, and the chaotic sequences X1 and X2 are obtained by chaotic iteration. Using the position change rules before and after the descending order of the sequences X1 and X2, the binary sequence

and

Scramble to get the scrambled binary sequence

and

separate binary sequences

and

The middle elements are grouped in units of 5 elements in the forward direction, and then the parity grouping sequences are recombined respectively, so as to generate the product anti-counterfeiting number, and then combine to generate the Chinese character product anti-counterfeiting code. The method for generating Chinese character commodity anti-counterfeiting codes provided by the invention is simple and feasible, has strong security, and is not easy to be deciphered, and the generated Chinese character commodity anti-counterfeiting codes have "uniqueness and unforgeability".

Description

A method for generating anti-counterfeiting codes for Chinese characters

technical field

The invention relates to the technical field of digital anti-counterfeiting, in particular to a method for generating anti-counterfeiting codes for Chinese characters.

Background technique

Counterfeit and shoddy products are common, and we need to take practical actions to protect the rights and interests of manufacturers and consumers. Counterfeit products pose a serious threat to all walks of life, especially pharmaceuticals, agricultural products, auto parts, computer software, and luxury goods such as expensive perfumes, cosmetics, jewelry, watches, and designer clothing. The International Chamber of Commerce in Geneva estimates that global sales of counterfeit products amount to $650 billion annually. Counterfeit medicines and alcoholic products are particularly problematic. This is not just counterfeiting. The actions of counterfeiters have seriously endangered the rights and interests of consumers: counterfeiting of medicines delays or even aggravates the disease; it is not uncommon for counterfeit alcohol to harm people. , which has also severely damaged the reputation of businesses and the confidence of consumers, and is extremely harmful to the establishment of a good economic and social order. As a result, many anti-counterfeiting measures have been born, such as: special packaging, designing complex icons, providing samples and so on. However, these methods are often insufficient in anti-counterfeiting performance due to lack of technology, and it is easy for counterfeiters to take advantage of the loopholes. With the progress of the times, anti-counterfeiting technology has made great breakthroughs. For example, chip technology, biotechnology, etc., but due to its high cost and many restrictions on the query side, it is not practical to apply in many fields. Since the digital anti-counterfeiting technology was introduced to the market in the mid-1990s, it has developed unprecedentedly.

Due to its combination of anti-counterfeiting printing and digital encryption technology, one-time use authority, randomness and unpredictability of generated passwords, digital anti-counterfeiting has made the anti-counterfeiting of goods unprecedentedly guaranteed, and can check the authenticity of products in various ways. It can effectively restrain the rampant of counterfeit and shoddy products. At the same time, chaotic signal, as a natural password, is introduced into the process of generating anti-counterfeiting codes of commodities, which has higher security. Under this circumstance, using the chaotic cryptography technology, a method for generating anti-counterfeiting codes of Chinese characters is proposed to generate anti-counterfeiting codes of Chinese characters with "uniqueness and unforgeability", which has good practical application and promotion value.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of the present invention is to solve the deficiencies in the prior art, and to provide a method for generating anti-counterfeiting codes for Chinese products, which utilizes chaotic mapping to generate chaotic signal sequences, and carries out 2 binary sequences converted from the Chinese character product identification codes. Scramble, group the elements in the scrambled binary sequence, and perform different recombination operations according to the odd and even numbers of the grouping sequence, so as to generate the product anti-counterfeiting number, and then combine to generate the Chinese character product anti-counterfeiting code, so as to ensure the proposed The method for generating Chinese character commodity anti-counterfeiting codes is simple and feasible, has strong security, and is not easy to crack, and the generated Chinese character commodity anti-counterfeiting codes have "uniqueness and unforgeability".

Technical solution: a method for generating anti-counterfeiting codes for Chinese characters, characterized in that it includes the following steps:

(1) Transcoding

First, convert the Chinese character product identification code A, which represents the unique identity information of a certain product, into numerical data [P _i1 , P _i2 ] one by one, and obtain a high-order numerical sequence P1={P ₁₁ , P ₂₁ ,...,P _i1 ,....,P _L1 } and low-order value sequence P2={P ₁₂ ,P ₂₂ ,...,P _i2 ,....,P _L2 },

Then, convert the high-order numerical sequence P1 into 8-bit binary data element by element, and obtain the high-order binary sequence PB1={PB1 ₁ ,PB1 ₂ ,...,PB1 _i ,....,PB1 _8×L }, and at the same time convert the low-order The numerical sequence P2 is converted into binary data of 8bits element by element, and the low-order binary sequence PB2={PB2 ₁ ,PB2 ₂ ,...,PB2 _i ,....,PB2 _8×L } is obtained,

和二进制序列

Finally, let LB=mod(5-mod(8×L,5),5), add LB '0' binary bits to the end of the high-order binary sequence PB1, and add LB '1' bits to the end of the low-order binary sequence PB2 binary bit, get binary sequence

and binary sequence

和

的长度均为

The Chinese character product identification code A includes Chinese punctuation marks in the GB2312 character set and Chinese characters encoded in double-byte characters in the GB2312 character set. The length of the Chinese character product identification code A is expressed as L, the lengths of the numerical sequences P1 and P2 are both L, and the binary sequence PB1 and PB2 are both 8×L in length, a binary sequence

and

length of

和

的置乱(2) Binary sequence

and

scramble

First, using the high-order numerical sequence P1 and the low-order numerical sequence P2, as well as the external keys α and β, according to the following formulas (1)-(5), the initial value x ₁ and parameter μ of the Logistic chaotic map, and the extraction start position m are calculated respectively. , and the number of decimation intervals n ₁ , n ₂ ,

则make

but

x ₁ =0.00001+mod(α-kp1,0.99999) (1)

μ=β+mod(kp1,4-β) (2)

Among them, the external key satisfies α∈(0,1), β∈(3.57,4),

Then, based on the initial value x ₁ of the chaotic map and the external key μ, the Logistic chaotic map shown in the following formula (6) is iterated, where k represents the number of iterations (k=1, 2,...), x _{k +1} represents the chaotic signal obtained at the kth iteration,

x _k+1 = μ×x _k ×(1-x _k ) (6)

的混沌信号序列

同时从序列X中第m个元素开始依次间隔n₂个元素取1个元素以形成长度为

的混沌信号序列

The chaotic signal sequence X={x ₁ , x ₂ ,...} is obtained, starting from the mth element in the sequence X and taking 1 element at intervals of n ₁ elements to form a length of

chaotic signal sequence of

At the same time, starting from the mth element in the sequence X, take 1 element at an interval of n ₂ elements to form a length of

chaotic signal sequence of

进行置乱，得到置乱后的二进制序列

同时将混沌信号序列X2按降序排序，根据混沌信号序列X2排序前、后的位置变化置乱规则，对二进制序列

进行置乱，得到置乱后的二进制序列

Finally, sort the chaotic signal sequence X1 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X1.

Scramble to get the scrambled binary sequence

At the same time, sort the chaotic signal sequence X2 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X2, and then the binary sequence

Scramble to get the scrambled binary sequence

和

的分组、重组(3) Scrambled binary sequence

and

grouping, reorganization

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为

同时将置乱后的二进制序列

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为

其中每一个二进制分组序列BF1{i}和BF2{i}均包含5个二进制位，且

First, the scrambled binary sequence

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as

At the same time, the scrambled binary sequence will be

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as

where each binary block sequence BF1{i} and BF2{i} contains 5 binary bits, and

依次进行如下重组操作：Then, each binary grouping sequence BF1{i} and BF2{i}, where

Perform the following reorganization operations in sequence:

同时将二进制分组序列BF2{i}的最前面添上二进制‘101’，表示为

If mod(i,2)=1, then add binary '110' to the front of the binary block sequence BF1{i}, which is expressed as

At the same time, add binary '101' to the front of the binary grouping sequence BF2{i}, which is expressed as

表示为

同时先将二进制分组序列BF2{i}中元素前后顺序翻转再在其最前面添上二进制‘101’，得到重组后的二进制分组序列

表示为

If mod(i, 2)=0, firstly reverse the order of the elements in the binary grouping sequence BF1{i}, and then add binary '110' to the front of the binary grouping sequence to obtain the reorganized binary grouping sequence

Expressed as

At the same time, the order of the elements in the binary grouping sequence BF2{i} is reversed, and the binary '101' is added to the front to obtain the reorganized binary grouping sequence.

Expressed as

转换成数值型数据

同时依次将每一个重组后的二进制分组序列

转换成数值型数据

其中

从而得到数值序列

和

Finally, use the bin2dec( ) function to sequentially divide each recombined binary grouping sequence

Convert to numeric data

At the same time, each recombined binary grouping sequence is sequentially

Convert to numeric data

in

to get the sequence of numbers

and

和

对应元素依次组合并进行数值与汉字的转换，得到汉字序列C，即为商品防伪号，其中汉字序列C的长度为

并将汉字商品标识码A和商品防伪号进行组合，生成汉字商品防伪码。(4) Transcoding: convert the sequence of values

and

Corresponding elements are combined in turn, and the numerical value and Chinese characters are converted, and the Chinese character sequence C is obtained, which is the product anti-counterfeiting number, and the length of the Chinese character sequence C is

Combining the Chinese character product identification code A and the product anti-counterfeiting number to generate the Chinese character product anti-counterfeiting code.

Further, described in step (1) in a kind of Chinese character commodity anti-counterfeiting code generation method, will characterize the Chinese character commodity identification code A of the unique identity information of a certain commodity, one by one Chinese character is converted into numerical data [P _i1 , P _i2 ], It refers to converting each Chinese character in the Chinese character product identification code A into numerical data using the unicode2native(·) function, that is, [P _i1 , P _i2 ]=unicode2native(A _i ), thereby obtaining a high-order numerical sequence P1={P ₁₁ ,P ₂₁ ,...,P _i1 ,....,P _L1 } and the lower order numerical sequence P2={P ₁₂ ,P ₂₂ ,...,P _i2 ,....,P _L2 }.

和

对应元素依次组合并进行数值与汉字的转换，是指将数值序列

和

中每个对应元素进行组合，即

并采用native2unicode(·)函数将数值型数据转换汉字，

其中

Further, the numerical sequence described in step (4) in a method for generating Chinese character commodity anti-counterfeiting codes

and

Corresponding elements are combined in turn and converted between numerical values and Chinese characters, which refers to the sequence of numerical values.

and

Combining each corresponding element in

And use the native2unicode(·) function to convert the numerical data into Chinese characters,

in

Further, the combination of the Chinese character commodity identification code A and the commodity anti-counterfeiting number described in the step (4) in a method for generating a Chinese character commodity anti-counterfeiting code to generate a commodity anti-counterfeiting code refers to adopting the Chinese character commodity identification code A and the commodity anti-counterfeiting number. Direct sequential connection, or direct reverse sequence connection, or a combination of intervening and intervening sequence connections.

Beneficial effects: the present invention utilizes chaotic mapping to generate chaotic signal sequences, scrambles the two binary sequences converted from the Chinese character commodity identification codes respectively, groups the elements in the scrambled binary sequences, and groups the elements according to the parity of the grouping sequence. Perform different recombination operations on the number of items to generate the product anti-counterfeiting number, and then combine to generate the Chinese character product anti-counterfeiting code, so as to ensure that the proposed Chinese character product anti-counterfeiting code generation method is simple and feasible, has strong security, and is not easy to crack. The generated Chinese characters Commodity security codes are "unique and unforgeable".

Description of drawings

FIG. 1 is a schematic diagram of the generation process of a Chinese character commodity anti-counterfeiting code according to the present invention.

Detailed ways

A method for generating anti-counterfeiting codes for Chinese characters as shown in Figure 1 includes the following steps:

(1) Transcoding

First, the Chinese character product identification code A representing the unique identity information of a certain product is converted into numerical data [P _i1 , P _i2 ] one by one, which means that the Chinese character product identification code A is converted one by one using the unicode2native( ) function It is numerical data, ie [P _i1 ,P _i2 ]=unicode2native(A _i ), and the high-order numerical sequence P1={P ₁₁ ,P ₂₁ ,...,P _i1 ,....,P _L1 } and the low-order numerical sequence are obtained Numerical sequence P2={P ₁₂ ,P ₂₂ ,...,P _i2 ,....,P _L2 }.

Then, convert the high-order numerical sequence P1 into 8-bit binary data element by element, and obtain the high-order binary sequence PB1={PB1 ₁ ,PB1 ₂ ,...,PB1 _i ,....,PB1 _8×L }, and at the same time convert the low-order The numerical sequence P2 is converted into binary data of 8bits element by element, and the low-order binary sequence PB2={PB2 ₁ ,PB2 ₂ ,...,PB2 _i ,....,PB2 _8×L } is obtained,

和二进制序列

Finally, let LB=mod(5-mod(8×L,5),5), add LB '0' binary bits to the end of the high-order binary sequence PB1, and add LB '1' bits to the end of the low-order binary sequence PB2 binary bit, get binary sequence

and binary sequence

和

的长度均为

The Chinese character product identification code A includes Chinese punctuation marks in the GB2312 character set and Chinese characters encoded in double-byte characters in the GB2312 character set. The length of the Chinese character product identification code A is expressed as L, the lengths of the numerical sequences P1 and P2 are both L, and the binary sequence PB1 and PB2 are both 8×L in length, a binary sequence

and

length of

和

的置乱(2) Binary sequence

and

scramble

First, using the high-order numerical sequence P1 and the low-order numerical sequence P2, as well as the external keys α and β, the initial value x ₁ and parameter μ of the Logistic chaotic map, the extraction start position m, and the number of extraction intervals are calculated according to the following formulas respectively. n ₁ , n ₂ ,

make

x ₁ =0.00001+mod(α-kp1,0.99999) (1)

μ=β+mod(kp1,4-β) (2)

Among them, the external key satisfies α∈(0,1), β∈(3.57,4),

Then, based on the initial value x ₁ of the chaotic map and the external key μ, the Logistic chaotic map shown in the following formula is iterated, where k represents the number of iterations (k=1, 2,...), and x _k+1 represents The chaotic signal obtained at the kth iteration,

x _k+1 = μ×x _k ×(1-x _k ) (6)

的混沌信号序列

同时从序列X中第m个元素开始依次间隔n₂个元素取1个元素以形成长度为

的混沌信号序列

The chaotic signal sequence X={x ₁ , x ₂ ,...} is obtained, starting from the mth element in the sequence X and taking 1 element at intervals of n ₁ elements to form a length of

chaotic signal sequence of

At the same time, starting from the mth element in the sequence X, take 1 element at an interval of n ₂ elements to form a length of

chaotic signal sequence of

进行置乱，得到置乱后的二进制序列

同时将混沌信号序列X2按降序排序，根据混沌信号序列X2排序前、后的位置变化置乱规则，对二进制序列

进行置乱，得到置乱后的二进制序列

Finally, sort the chaotic signal sequence X1 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X1.

Scramble to get the scrambled binary sequence

At the same time, sort the chaotic signal sequence X2 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X2, and then the binary sequence

Scramble to get the scrambled binary sequence

和

的分组、重组(3) Scrambled binary sequence

and

grouping, reorganization

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为

同时将置乱后的二进制序列

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为

其中每一个二进制分组序列BF1{i}和BF2{i}均包含5个二进制位，且

First, the scrambled binary sequence

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as

At the same time, the scrambled binary sequence will be

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as

where each binary block sequence BF1{i} and BF2{i} contains 5 binary bits, and

依次进行如下重组操作：Then, each binary grouping sequence BF1{i} and BF2{i}, where

Perform the following reorganization operations in sequence:

同时将二进制分组序列BF2{i}的最前面添上二进制‘101’，表示为

If mod(i,2)=1, then add binary '110' to the front of the binary block sequence BF1{i}, which is expressed as

At the same time, add binary '101' to the front of the binary grouping sequence BF2{i}, which is expressed as

表示为

同时先将二进制分组序列BF2{i}中元素前后顺序翻转再在其最前面添上二进制‘101’，得到重组后的二进制分组序列

表示为

If mod(i, 2)=0, firstly reverse the order of the elements in the binary grouping sequence BF1{i}, and then add binary '110' to the front of the binary grouping sequence to obtain the reorganized binary grouping sequence

Expressed as

At the same time, the order of the elements in the binary grouping sequence BF2{i} is reversed, and the binary '101' is added to the front to obtain the reorganized binary grouping sequence.

Expressed as

转换成数值型数据

同时依次将每一个重组后的二进制分组序列

转换成数值型数据

其中

从而得到数值序列

和

Finally, use the bin2dec( ) function to sequentially divide each recombined binary grouping sequence

Convert to numeric data

At the same time, each recombined binary grouping sequence is sequentially

Convert to numeric data

in

to get the sequence of numbers

and

和

对应元素依次组合

并采用native2unicode(·)函数将数值型数据转换汉字，即

其中

从而得到汉字序列C，即为商品防伪号，并将汉字商品标识码A和商品防伪号采用直接顺序连接，或者直接逆序连接，或者间隔插序连接的组合方式进行组合，生成汉字商品防伪码。(4) Transcoding: convert the sequence of values

and

Corresponding elements are combined in sequence

And use the native2unicode( ) function to convert the numeric data into Chinese characters, that is

in

Thereby, the Chinese character sequence C is obtained, which is the product anti-counterfeiting number, and the Chinese character product identification code A and the product anti-counterfeiting number are combined in a direct sequence, or a direct reverse sequence connection, or a combination of interleaved sequence connections to generate a Chinese character product anti-counterfeiting code.

Below in conjunction with specific embodiment, the present invention will be further described:

Example 1

According to the above-mentioned method for generating an anti-counterfeiting code for Chinese characters, the steps are as follows:

(1) First of all, the Chinese character product identification code A that characterizes the unique identity information of a certain product = "Jiangsu Province ##GroupXX Subsidiary@@@Commodity Production Date 2020-02-01 Production Line 12 Serial Number 1 2 3 4 5 6 ”，逐个汉字转换为数值型数据，得到高位数值序列P1＝{189,203,202,163,163,188,205,161,161,215,185,203,161,163,163,201,198,161,201,178,200,198,163,163,163,163,163,163,163,163,163,163,161,201,178,207,163,163,208,193,186,163,163,163,163,163,163}和低位数值序列P2＝{173,213,161,163,163,175,197,193,193,211,171,190,161,192,192,204,183,161,250,250,213,218,178,176,178,176,173,176,178,173,176,177,161,250,250,223,177,178,242,208,197,177,178,179,180,181,182}。

Then, convert the high-order numerical sequence P1 into 8-bit binary data element by element, and obtain the high-order binary sequence PB1={1,0,1,1,1,1,0,1,1,1,0,0,1,0 ,1,1,1,1,0,0,1,0,1,0,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1 ,1,1,0,1,1,1,1,0,0,1,1,0,0,1,1,0,1,1,0,1,0,0,0,0,1 ,1,0,1,0,0,0,0,1,1,1,0,1,0,1,1,1,1,0,1,1,1,0,0,1,1 ,1,0,0,1,0,1,1,1,0,1,0,0,0,0,1,1,0,1,0,0,0,1,1,1,0 ,1,0,0,0,1,1,1,1,0,0,1,0,0,1,1,1,0,0,0,1,1,0,1,0,1 ,0,0,0,0,1,1,1,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1,1,0,0 ,1,0,0,0,1,1,0,0,0,1,1,0,1,0,1,0,0,0,1,1,1,0,1,0,0 ,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0 ,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1 ,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,0,1 ,1,1,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1,1,0,0,1,1,1,1,1 ,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,1,0,1,0,0,0,0,1,1 ,0,0,0,0,0,1,1,0,1,1,1,0,1,0,1,0,1,0,0,0,1,1,1,0,1 ,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0 ,0,0,1,1,1,0,1,0,0,0,1,1}, at the same time convert the low-order numerical sequence P2 into 8-bit binary data element by element, and obtain the low-order binary sequence PB2={1, 0,1,0,1,1,0,1,1,1,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0, 1,0,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,1,1,1,1,1,1,0, 0,0,1,0,1,1,1,0,0,0,0,0,1,1,1,0,0,0,0,0,1,1,1,0,1, 0,0,1, 1,1,0,1,0,1,0,1,1,1,0,1,1,1,1,1,0,1,0,1,0,0,0,0,1, 1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,1,1,0,0,1, 0,1,1,0,1,1,1,1,0,1,0,0,0,0,1,1,1,1,1,1,0,1,0,1,1, 1,1,1,0,1,0,1,1,0,1,0,1,0,1,1,1,0,1,1,0,1,0,1,0,1, 1,0,0,1,0,1,0,1,1,0,0,0,0,1,0,1,1,0,0,1,0,1,0,1,1, 0,0,0,0,1,0,1,0,1,1,0,1,1,0,1,1,0,0,0,0,1,0,1,1,0, 0,1,0,1,0,1,0,1,1,0,1,1,0,1,1,0,0,0,0,1,0,1,1,0,0, 0,1,1,0,1,0,0,0,0,1,1,1,1,1,1,0,1,0,1,1,1,1,1,0,1, 0,1,1,0,1,1,1,1,1,1,0,1,1,0,0,0,1,1,0,1,1,0,0,1,0, 1,1,1,1,0,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,0,1,0,1,1, 0,1,1,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,1,0,0,1,1,1,0, 1,1,0,1,0,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,0},

和二进制序列

Finally, let LB=mod(5-mod(8×47,5),5)=4, add 4 '0' binary bits to the end of the high-order binary sequence PB1, and add 4'' to the end of the low-order binary sequence PB2 1' binary bit, get binary sequence

and binary sequence

和

的长度均为

The length of the Chinese character product identification code A is L=47, the lengths of the numerical sequences P1 and P2 are both L=47, the lengths of the binary sequences PB1 and PB2 are both 8×L=376, the binary sequence

and

length of

(2) First, using the numerical sequences P1 and P2, and the external keys α=0.12345 and β=3.75, the initial value x ₁ and parameter μ of the Logistic chaotic map, the extraction start position m, and the extraction interval are calculated according to the following formulas respectively. Numbers n ₁ , n ₂ ,

则make

but

x ₁ =0.00001+mod(0.12345-0.172389696730833,0.99999)=0.951060303269167

μ=3.75+mod(0.172389696730833,4-3.75)=3.922389696730833

Then, based on the initial value of the chaotic map x ₁ =0.951060303269167 and the external key μ = 3.922389696730833, the Logistic chaotic map is iterated to obtain the chaotic signal sequence X={x ₁ ,x ₂ ,...}, Starting from 334 elements, take 1 element at an interval of 22 elements to form a chaotic signal sequence X1={X1 ₁ , X1 ₂ ,..., X1 ₃₈₀ } with a length of 380, and start from the 334th element in the sequence X in sequence Take 1 element every 24 elements to form a chaotic signal sequence with length 380 X2={X2 ₁ , X2 ₂ ,...,X2 ₃₈₀ },

进行置乱，得到置乱后的二进制序列

同时将混沌信号序列X2按降序排序，根据混沌信号序列X2排序前、后的位置变化置乱规则，对二进制序列

得到置乱后的二进制序列

Finally, sort the chaotic signal sequence X1 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X1.

Scramble to get the scrambled binary sequence

At the same time, sort the chaotic signal sequence X2 in descending order, and scrambling the rules according to the position change before and after the sorting of the chaotic signal sequence X2, and then the binary sequence

get the scrambled binary sequence

和

分别进行分组，将二进制序列

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为BF1{1}＝{0,0,0,1,1}，BF1{2}＝{1,1,0,0,0},…,BF1{38}＝{0,0,1,0,0}，…,BF1{75}＝{0,0,1,1,1}，BF1{76}＝{0,0,1,1,0}，同时将二进制序列

中元素从头到尾依次正向以5个元素为单位进行分组，得到分组后的二进制序列，表示为BF2{1}＝{1,1,0,1,0}，BF2{2}＝{0,0,0,0,1},…,BF2{38}＝{0,1,0,1,1}，…,BF2{75}＝{0,0,1,0,1}，BF2{76}＝{0,0,0,1,1}，(3) First, for the scrambled binary sequence

and

grouped separately, the binary sequence

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as BF1{1}={0,0,0,1,1}, BF1{2}={1 ,1,0,0,0},…,BF1{38}={0,0,1,0,0},…,BF1{75}={0,0,1,1,1},BF1{ 76}={0,0,1,1,0}, while converting the binary sequence

The elements in the middle are grouped in units of 5 elements from the beginning to the end, and the binary sequence after the grouping is obtained, which is expressed as BF2{1}={1,1,0,1,0}, BF2{2}={0 ,0,0,0,1},…,BF2{38}={0,1,0,1,1},…,BF2{75}={0,0,1,0,1},BF2{ 76} = {0,0,0,1,1},

依次进行重组操作，得到重组后的二进制分组序列，表示为

以及BF2{1}＝{1,0,1,1,1,0,1,0}，BF2{2}＝{1,0,1,1,0,0,0,0},…,BF2{38}＝{1,0,1,1,1,0,1,0}，…,BF2{75}＝{1,0,1,0,0,1,0,1}，BF2{76}＝{1,0,1,1,1,0,0,0}，Then, each binary grouping sequence BF1{i} and BF2{i}, where

Perform the recombination operation in turn to obtain the recombined binary grouping sequence, which is expressed as

and BF2{1}={1,0,1,1,1,0,1,0}, BF2{2}={1,0,1,1,0,0,0,0},…,BF2 {38}={1,0,1,1,1,0,1,0},...,BF2{75}={1,0,1,0,0,1,0,1},BF2{76 }={1,0,1,1,1,0,0,0},

转换成数值型数据

同时依次将每一个重组后的二进制分组序列

转换成数值型数据

其中i＝1,2,3,...,76，从而得到数值序列

和

Finally, use the bin2dec(·) function to sequentially combine each recombined binary grouping sequence

Convert to numeric data

At the same time, each recombined binary grouping sequence is sequentially

Convert to numeric data

where i = 1, 2, 3,..., 76, thus obtaining a numerical sequence

and

和

每个元素组合并进行数值与汉字的转换，得到汉字商品防伪号为“煤冒蟹揽券纬司啸联嘶桶貭甙纱霉伪嘶毯缀尉思驶薪辗转蟹薁指莼贫鄱炭庸袪亩卸煤暮玫吒劢罓爽锥诏援滩媒荬帧学透之蔂坍薪踊埽诂尾嘶泳赢斯胎荸峡片莺逘纬芯喂霜钎谈”，并将汉字商品标识码A和商品防伪号采用直接顺序连接，或者直接逆序连接，或者间隔插序连接的组合方式进行组合，生成汉字商品防伪码分别如下，(4) put the numerical sequence

and

Combining each element and converting the numerical value and Chinese characters, the anti-counterfeiting number of the Chinese character product is obtained as "Coal, crab, coupon, Wei Si Xiao Lian, sizzling, saccharin, gauze mold, pseudo-hiss blanket, Wei Si sailing, rolling, crab, scorpion, and poor po charcoal." Unloading coal in yongwamu, twilight, Meizha, shuangshuangzhuan, aided beach, mediator, frame, learn-through, slump, slump, dance, tail, swirl, win, tibia, gorge, piece, ying, weft, core, cream, brazing talk, and put Chinese character goods The identification code A and the commodity anti-counterfeiting number are combined in a direct sequence, or a direct reverse sequence connection, or a combination of spaced and interpolated sequence connections, and the generated Chinese character commodity security codes are as follows:

Direct sequence connection: "Jiangsu Province ##Group XX Subsidiary@@@Commodity Production Date 2020-02-01 Production Line 12 Serial Number 1 2 3 4 5 6 Coal Crab Tickets Weixiaolian Hiss Barrel Saccharomyces Hissing blanket, Weisi, driving salary, turning crabs, pointing to Ulva, poor, charcoal, and unloading coal, twilight, Meizha, shuangshuang, jiu, aid, beach, matchmaking, frame, learning, slump, slump, slugging, tail, swimming, and winning the tidal gorge Pian Yingli Weft Core Feeding Frost and Drilling",

Direct reverse order connection: "Talking about brazing cream, feeding core, weaving, warping, kataya, water chestnut, winning, swimming, slaughtering, slumping, learning frame, media beach, aid, cone, cooling, coal, coal unloading, and charcoal Po poor Ulva finger crabs turn over the salary, Siwei carpet, pseudomycoside, cask sizzle, joint Xiao Siwei coupons, crabs and coals Commodities@@Company's subsidiary XX Group ##Sujiang Province",

Interleaved sequence connection: "Jiangsu Coal, Jiangsu Province, Crab#Lan#Coupon Group Weft Group Company×Xiao×Lianzixi Company Barrel Company Siposide @ Yarn @ Mold Merchant Counterfeit Hiss Blanket Production Wet Risiqi Drive 2 Salary 0 rolls, 2 turns, 0 crabs, 0 fingers, 2 scallops, poor 0, 1, charcoal, yield, mu line, unloading, 1 coal, 2 twilight sequence, Meilie Zha, 1, 2, 3 cones, 4 edicts, 5 aids, 6 beach matchmaking, framing Through the slump, the salary, the squat, the tail, the swirl, and the win, the tibia, the gorge, the Yingli, the weft, the core, the frost and the drill",

Example 2

According to the above-mentioned method for generating anti-counterfeiting codes for Chinese characters, the steps for generating a commodity identification code string A of a certain commodity and its commodity anti-counterfeiting codes are similar to those in the specific embodiment 1, except that only a slight change occurs in a certain external key: α=0.12345000000001; or β= 3.74999999999999, the generation results of anti-counterfeiting codes for Chinese characters are shown in Table 1. It can be seen from the following table: once the external key changes slightly, the generated product anti-counterfeiting number and Chinese character product anti-counterfeiting code will change greatly. It can be seen that the method for generating a Chinese character product anti-counterfeiting code proposed in this patent is key sensitive. sex.

Table 1 The generation results of anti-counterfeiting codes for Chinese characters when the external key changes slightly

Example 3

According to the above-mentioned method for generating Chinese character commodity anti-counterfeiting codes, the steps for generating an external key and its commodity anti-counterfeiting codes are similar to those in the specific embodiment 1. Production date 2020-02-01 Production line 12 serial number 1 2 3 4 5 6) Minor changes: "冮Su Province ##Group XX Subsidiary @ ＠ @ Commodity production date 2020-02-01 Production line 12 serial number 1 2 3 4 5 6"; or "Jiangsu Province ##Group XX Subsidiary@@@Commodity Production Date 2020-12-01 Production Line 12 Serial Number 1 2 3 4 5 6"; or "Jiangsu Province ##Group XX Subsidiary @  @Product production date 2020-02-01 Production line 12 serial number 1 2 3 4 5 9", the generation results of Chinese character product security codes are shown in Table 2. It can be seen from the following table: once the product identification code string representing the unique identity information of a certain product changes slightly, the generated product anti-counterfeiting number and Chinese character product anti-counterfeiting code will undergo great changes. The method for generating Chinese character commodity anti-counterfeiting codes is sensitive to commodity identity information (ie, commodity identification code strings).

Table 2 When the product identification code changes slightly, the generation results of the product anti-counterfeiting code

From the analysis of the above-mentioned specific embodiment 2 and example 3, it can be seen that the Chinese character commodity anti-counterfeiting code generated by the Chinese character commodity anti-counterfeiting code generation method proposed in this patent is not only closely related to the external key, but also depends on the commodity representing the unique identity information of a certain commodity. Therefore, the method for generating an anti-counterfeiting code for Chinese characters proposed in this patent has strong security, can better resist known/selected plaintext attacks, and is not easy to crack, so as to ensure that the generated anti-counterfeiting code for Chinese characters has "Uniqueness and Unforgeability".

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Technical personnel, within the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above, but any content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (4)

1. A Chinese character commodity anti-counterfeiting code generation method is characterized by comprising the following steps:

(1) transcoding:

firstly, Chinese character commodity identification code A representing unique identity information of a certain commodity is converted into numerical data [ P ] one by one_i1,P_i2]To obtain a high-order numerical sequence P1 ═ { P ═ P₁₁,P₂₁,...,P_i1,....,P_L1And a low order value sequence P2 ═ P₁₂,P₂₂,...,P_i2,....,P_L2}，

Then, the high-order binary sequence P1 is converted into binary data of 8bits element by element, resulting in a high-order binary sequence PB1 ═ PB1₁,PB1₂,...,PB1_i,....,PB1_8×LSimultaneously, the low-order value sequence P2 is converted into binary data of 8bits element by element, and a low-order binary sequence PB2 ═ PB2 is obtained₁,PB2₂,...,PB2_i,....,PB2_8×L}，

Finally, let LB ═ mod (5-mod (8 × L,5),5), add LB '0' binary bits to the end of the higher binary sequence PB1, and LB '1' binary bits to the end of the lower binary sequence PB2, to obtain a binary sequence

And binary sequence

The Chinese character commodity identification code A comprises Chinese punctuation marks in a GB2312 character set and double-byte coded Chinese characters in the GB2312 character set, the length of the Chinese character commodity identification code A is represented as L, the lengths of numerical value sequences P1 and P2 are L, the lengths of binary sequences PB1 and PB2 are 8 xL, and the lengths of the binary sequences are 8 xL

And

all have the length of

(2) Binary sequence

And

scrambling of (1):

firstly, an initial value x of the Logistic chaotic map is respectively calculated and obtained by utilizing a high-order numerical value sequence P1, a low-order numerical value sequence P2 and external keys alpha and beta according to the following formulas (1) - (5)₁A sum parameter mu, an extraction start position m, and an extraction interval number n₁、n₂Let us order

Then

x₁＝0.00001+mod(α-kp1,0.99999) (1)

μ＝β+mod(kp1,4-β) (2)

Wherein the external key satisfies α ∈ (0,1), β ∈ (3.57,4),

then, the initial value x mapped by chaos₁And an external key mu, iterating the Logistic chaotic mapping shown in the following formula (6), wherein k represents iteration times (k is 1, 2), x_k+1Represents the chaotic signal obtained by the k-th iteration,

x_k+1＝μ×x_k×(1-x_k) (6)

obtaining a chaotic signal sequence X ═ X₁,x₂,., spaced by n from the m-th element in the sequence X₁Each element is 1 element to form a length of

Of the chaotic signal sequence

At the same time, the m-th element in the sequence X is sequentially spaced by n₂Each element is 1 element to form a length of

Of the chaotic signal sequence

Finally, the chaotic signal sequence X1 is sorted in descending order, and the binary sequence is scrambled according to the position change scrambling rule before and after the chaotic signal sequence X1 is sorted

Scrambling is carried out to obtain a scrambled binary sequence

Simultaneously, the chaotic signal sequence X2 is sorted in a descending order, and the binary sequence is scrambled according to the position change scrambling rule before and after the chaotic signal sequence X2 is sorted

Scrambling is carried out to obtain a scrambled binary sequence

(3) Scrambled binary sequence

And

grouping and recombining:

first, the scrambled binary sequence is decoded

The middle elements are sequentially and positively grouped by taking 5 elements as a unit from the beginning to the end to obtain a grouped binary sequence which is expressed as

Simultaneously scrambling the binary sequences

The middle elements are sequentially and positively grouped by taking 5 elements as a unit from the beginning to the end to obtain a grouped binary sequence which is expressed as

Wherein each of the binary packet sequences BF1{ i } and BF2{ i } includes 5 binary bits, and

then, each sequence of binary packets BF1{ i } and BF2{ i }, where i is 1,2, 3.,

the following recombination operations were performed in sequence:

if mod (i,2) ═ 1, the most forward binary sequence of packets BF1{ i } is added with binary '110', denoted as

While the top of the binary packet sequence BF2{ i } is padded with binary '101', denoted as

If mod (i,2) is 0, the elements in the binary grouping sequence BF1{ i } are firstly turned back and forth sequentially, and then binary '110' is added at the forefront of the elements to obtain a recombined binary grouping sequence

Is shown as

Simultaneously, the elements in the binary grouping sequence BF2{ i } are firstly turned over in the front-back order and then added with binary '101' at the forefront to obtain a recombined binary grouping sequence

Is shown as

Finally, each recombined binary grouping sequence is sequentially generated by using a bin2dec (-) function

Conversion into numerical data

Conversion into numerical data

Wherein i is 1,2, 3.,

thereby obtaining a numerical sequence

And

(4) transcoding:

sequence of values

And

corresponding elements in the groupCombining the numerical values and the Chinese characters to obtain a Chinese character sequence C, namely the commodity anti-counterfeiting number, wherein the length of the Chinese character sequence C is

And combining the Chinese character commodity identification code A and the commodity anti-counterfeiting number to generate the Chinese character commodity anti-counterfeiting code.

2. The method for generating anti-counterfeiting codes for Chinese character commodities as claimed in claim 1, wherein: the Chinese character commodity identification code A representing the unique identity information of a certain commodity in the step (1) is converted into numerical data [ P ] one by one_i1,P_i2]It is to convert the Chinese characters in the Chinese character commodity identification code A into numerical data by adopting unicode2native (·) function one by one, namely [ P_i1,P_i2]＝unicode2native(A_i) So as to obtain a high-order numerical value sequence P1 ═ { P ═ P₁₁,P₂₁,...,P_i1,....,P_L1And a low order value sequence P2 ═ P₁₂,P₂₂,...,P_i2,....,P_L2}。

3. The method for generating anti-counterfeiting codes for Chinese character commodities as claimed in claim 1, wherein: the numerical sequence in step (4)

And

corresponding elements are combined in sequence and the conversion between numerical values and Chinese characters is carried out, which means that numerical value sequences are combined

And

in which corresponding elements are combined, i.e.

And converting numerical data into Chinese characters by using native2unicode (·) function, i.e. converting numerical data into Chinese characters

Wherein i is 1,2, 3.,

4. the method for generating anti-counterfeiting codes for Chinese character commodities as claimed in claim 1, wherein: the step (4) of combining the Chinese character commodity identification code A and the commodity anti-counterfeiting number to generate the commodity anti-counterfeiting code is to adopt a combination mode of directly connecting the Chinese character commodity identification code A and the commodity anti-counterfeiting number in sequence, or directly connecting the Chinese character commodity identification code A and the commodity anti-counterfeiting number in reverse sequence, or connecting the Chinese character commodity identification code A and the commodity anti-counterfeiting number in sequence at intervals.

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