CN102916804A - Two-dimension code coding and decoding method and device based on local color verification - Google Patents
Two-dimension code coding and decoding method and device based on local color verification Download PDFInfo
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Abstract
The invention discloses a two-dimension code coding and decoding method and devices based on local color verification. The coding method comprises the following steps of: generating coloring region data randomly according to a predefined coloring region coding and decoding table, and taking the generated coloring region data as a secret key to perform encryption so as to obtain two-dimension code generation information; generating two-dimension code black-and-white images by a two-dimension code generation algorithm; and finally coloring the generated two-dimension code black-and-white images according to the coloring region data to obtain local colored two-dimension code images. The decoding method comprises the following steps of: reading the coloring region data on the two-dimension code images, and using a standard two-dimension code decoding algorithm to decode; and performing decryption on the decoded information by taking the coloring region data as the secret key via a decipherment algorithm to obtain original information of the two-dimension cod images. By using the invention based on original black and white colors, the coloring region information is increased, coding space of two-dimension codes can be expanded, and counterfeited difficulty is increased.
Description
Technical field
The present invention relates to two-dimension code coding, decoding research field, particularly a kind of two-dimension code coding method, code device and coding/decoding method and decoding device based on the local color verification.
Background technology
Two-dimension code is the chequered with black and white graphic recording data symbol information that (on the two-dimensional directional) distributes on the plane according to certain rules with certain specific geometric figure, on coding, utilize dexterously " 0 ", the concept of " 1 " bit stream that consists of the computer-internal logical foundations, represent the literal numerical information with several geometrical bodies corresponding with binary system, automatically process with realization information by image input device or photoelectric scanning device automatically identifying and reading.It has some general character of barcode technology: every kind of code system has its specific character set; Each character occupies certain width; Has certain verifying function etc.Also have simultaneously information automatic identification function to different rows, and characteristics such as processing graphics rotation variation.
The characteristics such as two-dimensional bar code has the confidentiality height, tracking property is high, anti-damage is strong, redundant is large, cost is low now have been widely used in the aspects such as list, safe and secret, tracking, license, stock taking, data redundant.But because coding/decoding technology is open, the threshold of making the two-dimension code of palming off is also very low.Standard two-dimension code version all is to use black and white two looks in addition, and its space encoder is also limited.
Therefore, need a kind of effective anti-counterfeiting mark, on the one hand two-dimension code is strengthened by counterfeit difficulty, can expand on the other hand the space encoder of two-dimension code, guarantee that two-dimension code is not tampered.
Summary of the invention
Main purpose of the present invention is to overcome the shortcoming of prior art with not enough, a kind of two-dimension code coding method, code device and coding/decoding method and decoding device based on the local color verification is provided, above-mentioned coding and decoding device and method are based on the local color verification, on the basis of original black and white two looks, increased pigmented section information, can expand the space encoder of two-dimension code, improve simultaneously two-dimension code by counterfeit difficulty.
Purpose of the present invention realizes by following technical scheme:
A kind of two-dimension code coding method based on the local color verification may further comprise the steps:
(1) on the two-dimension code template, the pigmented section coding and decoding table according to predefined generates the pigmented section data at random, and the pigmented section data comprise the shape of pigmented section quantity, each pigmented section, the color of each pigmented section;
(2) two-dimension code raw information is encrypted as key with the pigmented section data that step (1) generates, obtains the two-dimension code information generated;
(3) the two-dimension code information generated that step (2) is obtained generates the two-dimension code black and white image by the two-dimension code generating algorithm;
(4) the two-dimension code template of formulating according to step (1) and the pigmented section data of generation dye to the two-dimension code black and white image that step (3) obtains, and finally obtain the partial color image in 2 D code.
Preferably, in the described step (1), the pigmented section coding and decoding table of predefined refers in advance the coding and decoding table that the shape that may occur according to pigmented section and color are set up respectively, in the shape coding decoding table, defines the corresponding numerical value of each shape, equally in the color coding decoding table, define the corresponding numerical value of each color, then together with pigmented section quantity, foundation＜pigmented section quantity i, each pigmented section shape S, each pigmented section color C〉the key vector.
Preferably, in the described step (2), two-dimension code raw information comprises the cleartext information that hides Info He need not encrypt that needs encryption, the pigmented section data that generate with step (1) that hide Info that need are encrypted are encrypted as key, and the cleartext information that hides Info He need not encrypt after the encryption that then will obtain carries out amalgamation and obtains the two-dimension code information generated.
Further, in the described step (2), hiding Info that need are encrypted, with step (1) generated＜i, S, C〉key vector, be encrypted hiding Info after obtaining encrypting according to existing open bidirectional encipher algorithm (need not specify certain, can be optional according to prior art).
Further, in the described step (2), hiding Info with cleartext information and after encrypting carried out amalgamation and adopted following algorithm: cleartext information is designated as M
1, hiding Info after the encryption is designated as M
2, use separator w to splice.A kind of simple connecting method is 2 D code information M=M
1+ w+M
2, cipher-text information can be undertaken expressly and the simple characters string splicing work of ciphertext by two-dimension code generation side with this thinking immediately following behind the cleartext information.Another kind of simple concatenation mode is to insert splicing, 2 D code information M=M
11+ M
21+ M
12+ M
22, being inserted into the cleartext information the inside hiding Info according to fixing insertion position, also can be undertaken expressly and the splicing of the character string of ciphertext by two-dimension code generation side with this thinking.
Preferably, in the described step (3), the two-dimension code information generated is generated image in 2 D code adopt following two-dimension code generating algorithm: the two-dimension code information generated that obtains according to step (2), the two-dimension code generating algorithm of Application standard (for example generating algorithm of two-dimension code PDF417, Datamatrix, Maxicode, QR Code, Code 49, Code16K, Vericode, Ultracode), the two-dimension code black and white image of generation standard.
A kind of two-dimension code coding/decoding method based on the local color verification may further comprise the steps:
(1) according to the pigmented section coding and decoding table of predefined, read the pigmented section data on the image in 2 D code, the pigmented section data comprise the shape of pigmented section quantity, each pigmented section, the color of each pigmented section;
(2) read image in 2 D code, color region being arranged as black region in the image in 2 D code of part dyeing, then image in 2 D code is used as standard black and white image in 2 D code, Application standard two-dimension code decoding algorithm is decoded;
(3) decoded information is decrypted by decipherment algorithm take the pigmented section data as key, obtains the raw information of image in 2 D code.
Preferably, in the described step (2), adopt the two-dimension code decoding algorithm (for example two-dimension code PDF417, Datamatrix, Maxicode, QR Code, Code 49, Code 16K, Vericode, Ultracode decoding algorithm) of existing standard that original image in 2 D code information is decoded.
Preferably, in the described step (3), decoded information comprises hiding Info and the unencrypted cleartext information of having encrypted, and step is as follows: at first by splitting algorithm decoded information is split as hiding Info of encryption and unencrypted cleartext information; The pigmented section data that generate with step (1) that hide Info that to encrypt again adopt decipherment algorithm to be decrypted as key, obtain at last the raw information of image in 2 D code.
Further, in the described step (3), hiding Info with cleartext information and after encrypting splits adopts following algorithm: in the two-dimension code simple concatenation information that described step (2) obtains, searching is carried out expressly and the separator (being designated as w) of the fractionation foundation of ciphertext, be respectively clear data and encrypt data before and after the separator, a kind of simple fractionation mode is according to 2 D code information M=M
1+ w+M
2, split clear data M
1With encrypt data M
2Obtaining two-dimension code in described step (2) inserts in the concatenation information, according to 2 D code information M=M
11+ M
21+ M
12+ M
22, reduction M
1=M
11+ M
12+ M
13, M
2=M
21+ M
22+ M
23, reduction clear data M
1With encrypt data M
2
Preferably, in the described step (3), the two-way decipherment algorithm by standard is decrypted take the pigmented section data as key to the resulting encrypt data of step (2).
A kind of two-dimension code code device based on the local color verification comprises:
The pigmented section data generating device is used in the pigmented section coding and decoding table generation pigmented section of two-dimension code template according to predefined;
The two-dimension code generating apparatus comprises encrypting module and two-dimension code coding module, and described encrypting module is connected with described two-dimension code coding module, and described two-dimension code generating apparatus is connected with the pigmented section data generating device; Encrypting module is used for take the pigmented section data as key hiding Info of need encryption being encrypted; The two-dimension code coding module, the two-dimension code information generated that is used for obtaining after the encrypting module encryption generates the two-dimension code black and white image;
The two-dimension code color image forming apparatus dyes to the two-dimension code black and white image that the two-dimension code generating apparatus generates according to the data of pigmented section data generating device, obtains the two-dimension code coloured image of local dyeing.
Preferably, described two-dimension code generating apparatus also comprises die section, and die section is used for the cleartext information that will need not encrypt and hiding Info of having encrypted carried out amalgamation, then the data after the amalgamation is sent to the two-dimension code coding module; Described die section is connected with encrypting module, two-dimension code coding module respectively.
A kind of two-dimension code decoding device based on the local color verification comprises:
Two-dimension code pigmented section reading device is used for reading image in 2 D code pigmented section data according to the pigmented section coding and decoding table of predefined;
The two-dimension code reading device comprises:
Read module is used for reading image in 2 D code;
The two-dimension code decoder module is used for the image in 2 D code information that read module reads is decoded;
Deciphering module is used for take the pigmented section data as key hiding Info of the rear encryption of decoding being decrypted;
Described read module, two-dimension code decoder module, deciphering module connect successively.
Preferably, described two-dimension code reading device also comprises the fractionation module, is used for the decoded information of two-dimension code decoder module is split into not encrypted cleartext information and encrypted hiding Info; Described fractionation module is connected with two-dimension code decoder module, deciphering module respectively.
The present invention compared with prior art has following advantage and beneficial effect:
1, the key of the present invention by hiding Info as two-dimension code with the pigmented section data, make the data pairing of local color and the two-dimension code of two-dimension code, realization is to monitoring, the supervision of data, and coding method of the present invention, coding/decoding method, code device and decoding device have identical or corresponding technical characterictic: the key that hides Info as two-dimension code with the pigmented section data is encrypted or decrypting process.One aspect of the present invention can be expanded the two-dimension code space encoder by partial color, can use on the other hand two-dimension code fetch equipment of the present invention to read the information that is hidden in the two-dimension code, integrality, fail safe and the confidentiality of two-dimension code have been guaranteed, and two-dimension code can be carried hide Info, antifalsification and the uniqueness of two-dimension code have been strengthened, the developing two-dimension code is as the outer new application of data label, so that two-dimension code is at the links of the process of circulation, can both check the true and false of two-dimension code, take precautions against the personation phenomenon.
2, the present invention needing can be widely used in the auxiliary circulation of commodities of label, production process control, management process control etc. all trades and professions, and for example supplier generates the two-dimension code that part is colour to product information and anti-counterfeiting information by the local color superposition algorithm on common black and white two-dimension code basis.On market, the consumer reads the product information in the two-dimension code by the general two-dimension code fetch program; Supplier is by professional fetch equipment, reads hiding Info of partial color in the two-dimension code, reaches the management such as data are traced to the source, sale control.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1 two-dimension code code device.
Fig. 2 is the structural representation of the embodiment of the invention 1 two-dimension code decoding device.
Fig. 3 is the embodiment of the invention 1 coding method and the flow chart of coding/decoding method in the commodity anti-channel conflict is used.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
Embodiment 1
In the present embodiment based on the two-dimension code code device of local color verification as shown in Figure 1, this device comprises pigmented section data generating device, two-dimension code generating apparatus and two-dimension code color image forming apparatus, and described two-dimension code generating apparatus comprises encrypting module, die section and the two-dimension code coding module that connects successively.
The pigmented section data generating device is used in the related data (comprise pigmented section quantity, color, shape etc.) of two-dimension code template according to the pigmented section coding and decoding table generation pigmented section of predefined.
Encrypting module is used for take the pigmented section data as key hiding Info of need encryption being encrypted.
Die section is used for carrying out amalgamation without the cleartext information of encryption with through hiding Info of encryption, then the data after the amalgamation is sent to the two-dimension code coding module.
The two-dimension code coding module is used for encrypted hiding Info generated the two-dimension code black and white image of standard with the cleartext information of not encrypted.The two-dimension code coding module can adopt the generating algorithm of two-dimension code PDF417, Datamatrix, Maxicode, QR Code, Code 49, Code 16K, Vericode, Ultracode to generate.
The two-dimension code color image forming apparatus dyes to the two-dimension code black and white image that the two-dimension code generating apparatus generates according to the resulting pigmented section of pigmented section data generating device, quantity and color, obtains the two-dimension code coloured image of local dyeing.
Based on the two-dimension code decoding device of local color verification as shown in Figure 2, comprise two-dimension code pigmented section reading device and two-dimension code reading device in the present embodiment; Described two-dimension code decoding device comprises read module, two-dimension code decoder module, fractionation module and the deciphering module that connects successively.
Two-dimension code pigmented section reading device is used for reading image in 2 D code pigmented section data according to the pigmented section coding and decoding table of predefined; The data of pigmented section comprise pigmented section quantity, color, shape etc.
Read module is used for reading image in 2 D code.
The two-dimension code decoder module is used for the image in 2 D code information that read module reads is decoded.
Split module, be used for the decoded information of image in 2 D code is split into without the cleartext information of encryption and hiding Info through encryption.
Deciphering module is used for take the pigmented section data as key being decrypted through hiding Info of encryption after the fractionation of fractionation module.
Fig. 3 is the schematic diagram of present embodiment in the commodity anti-channel conflict is used.As shown in the figure, after present embodiment is finished cataloged procedure according to coding method shown in Figure 3, production firm pastes or prints the partial color two-dimension code in product and packing thereof, production firm, consumer and sale controlling unit can be as required by the coding/decoding method shown in the figure to bar code with two-dimension code is decoded and Output rusults.Concrete, the coding method and the coding/decoding method that adopt in the present embodiment are as follows.
Based on the two-dimension code coding method of local color verification, may further comprise the steps in the present embodiment:
(1) on two-dimension code template (rectangle or square), the pigmented section coding and decoding table according to predefined generates the pigmented section data at random, and the pigmented section data comprise the shape of pigmented section quantity, each pigmented section, the color of each pigmented section.The pigmented section coding and decoding table of predefined refers in advance the coding and decoding table that the shape that may occur according to pigmented section and color are set up respectively, in the shape coding decoding table, define the corresponding numerical value of each shape, equally in the color coding decoding table, define the corresponding numerical value of each color, then together with pigmented section quantity, foundation＜pigmented section quantity i, each pigmented section shape S, each pigmented section color C〉the key vector.
(2) two-dimension code raw information comprises the M that hides Info that needs encryption
1The cleartext information M that need not encrypt
2Use the bidirectional encipher algorithm M that will hide Info
1With pigmented section data vector＜i, S, C〉be encrypted the M that hides Info after obtaining encrypting as key
1'=F (M
1,＜i, S, C 〉); With M
1' and M
2By the amalgamation of amalgamation algorithm, obtain two-dimension code information generated M=P (M
1', M
2).A kind of simple connecting method is to use separator w to splice 2 D code information M=M
1+ w+M
2, cipher-text information can be undertaken expressly and the simple characters string splicing work of ciphertext by two-dimension code generation side with this thinking immediately following behind the cleartext information.Another kind of simple concatenation mode is to insert splicing, 2 D code information M=M
11+ M
21+ M
12+ M
22, being inserted into the cleartext information the inside hiding Info according to fixing insertion position, also can be undertaken expressly and the splicing of the character string of ciphertext by two-dimension code generation side with this thinking.
(3) the two-dimension code information generated that step (2) is obtained generates the two-dimension code black and white image of standard by the two-dimension code generating algorithm (for example two-dimension code PDF417, Datamatrix, Maxicode, QR Code, Code 49, Code 16K, Vericode, Ultracode generating algorithm) of standard.
(4) the two-dimension code template of formulating according to step (1) and the pigmented section data of generation dye to the two-dimension code black and white image that step (3) obtains, and finally obtain the partial color image in 2 D code.
Based on the two-dimension code coding/decoding method of local color verification, may further comprise the steps in the present embodiment:
(1) according to the pigmented section coding and decoding table of predefined, read the pigmented section data on the image in 2 D code, the pigmented section data comprise pigmented section quantity i,, each pigmented section shape S,, the color C of each pigmented section, obtain pigmented section data vector＜i, S, C 〉.
(2) read image in 2 D code, color region being arranged as black region in the image in 2 D code of part dyeing, then image in 2 D code is used as standard black and white image in 2 D code, Application standard two-dimension code decoding algorithm is decoded and is obtained information M.
(3) by splitting algorithm＜M
1', M
2〉=P
-1(M) obtain the M that hides Info through encryption
1' and the cleartext information M of not encrypted
2Again by decipherment algorithm to M
1' with pigmented section data vector＜i, S, C〉be decrypted the M that hides Info before obtaining encrypting as key
1, with raw information M
1And M
2Output.
Wherein two-dimension code can comprise following information: hiding Info comprises anti-counterfeiting information, encrypted message and identifying information; Can be product vendor's information, product distribution merchant information, product original producton location information, product weight, time of making the product information, keeping life, batch number and product total quantity information; Sales outlet information, the term of validity, applying unit or the personal information of certificate, bill, the amount of money, the unit of sending, recruiting unit, send time, specification, toward the information of ground return; People or unit information etc. under the certificate term of validity, reviewing authority's information, the certificate.Cleartext information can be for product ID, product essential information, product are introduced substantially, product vendor's information, product distribution merchant information, product original producton location information, product weight, time of making the product information, keeping life, batch number and product total quantity information; Sales outlet information, the term of validity, applying unit or the personal information of certificate, bill, the amount of money, the unit of sending, recruiting unit, send time, specification, toward ground return information; People or unit information under the certificate term of validity, reviewing authority's information, the certificate; Or the specific key information that password encryption/decoding is adopted etc.
In actual applications, the consumer can pass through mobile phone, PDA, computer camera etc., reads product serial number in the bar code and the cleartext information of two-dimension code.
Sell the two-dimension code reading device that controlling unit can use present embodiment, read the cleartext information of two-dimension code, read hiding Info of two-dimension code take the pigmented section data as key; Can check whether whether the packing of product conforms to product, be opened sale; Carry out the management of production marketing anti-channel conflict; Carrying out authenticity of products differentiates.
In addition, the described encoding/decoding device of present embodiment and method also can be applicable on the tax invoice, and after cataloged procedure was finished in described coding method by present embodiment, two-dimension code was printed at invoice by printing invoice unit; Consumer and coherence check department can be as required by the described coding/decoding method of present embodiment to bar code with two-dimension code is decoded and Output rusults.
Wherein the content of two-dimension code comprises cleartext information: invoice issuing unit, commodity detail, the amount of money, taxpayer number, make out an invoice the date etc., also comprise hiding Info: tax authority's identifier, cleartext information verification etc.
The consumer can read by mobile phone, PDA, computer camera etc. the cleartext information of invoice sequence number and two-dimension code.
Coherence check department can pass through the described two-dimension code reading device of present embodiment, reads hiding Info and cleartext information of two-dimension code.
Therefore, the present invention needing can be widely used in the auxiliary circulation of commodities of label, production process control, management process control etc. all trades and professions, and for example supplier generates the two-dimension code that part is colour to product information and anti-counterfeiting information by the local color superposition algorithm on common black and white two-dimension code basis.On market, the consumer reads the product information in the two-dimension code by the general two-dimension code fetch program; Supplier is by professional fetch equipment, reads hiding Info of partial color in the two-dimension code, reaches the management such as data are traced to the source, sale control.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the two-dimension code coding method based on the local color verification is characterized in that, may further comprise the steps:
(1) on the two-dimension code template, the pigmented section coding and decoding table according to predefined generates the pigmented section data at random, and the pigmented section data comprise the shape of pigmented section quantity, each pigmented section, the color of each pigmented section; The pigmented section coding and decoding table of predefined refers in advance the coding and decoding table that the shape that may occur according to pigmented section and color are set up respectively, in the shape coding decoding table, define the corresponding numerical value of each shape, equally in the color coding decoding table, define the corresponding numerical value of each color, then together with pigmented section quantity, foundation＜pigmented section quantity i, each pigmented section shape S, each pigmented section color C〉the key vector;
(2) two-dimension code raw information is encrypted as key with the pigmented section data that step (1) generates, obtains the two-dimension code information generated;
(3) the two-dimension code information generated that step (2) is obtained generates the two-dimension code black and white image by the two-dimension code generating algorithm;
(4) the two-dimension code template of formulating according to step (1) and the pigmented section data of generation dye to the two-dimension code black and white image that step (3) obtains, and finally obtain the partial color image in 2 D code.
2. the two-dimension code coding method based on the local color verification according to claim 1, it is characterized in that, in the described step (2), two-dimension code raw information comprises the cleartext information that hides Info He need not encrypt that needs encryption, the pigmented section data that generate with step (1) that hide Info that need are encrypted are encrypted as key, and the cleartext information that hides Info He need not encrypt after the encryption that then will obtain carries out amalgamation and obtains the two-dimension code information generated.
3. the two-dimension code coding method based on the local color verification according to claim 2, it is characterized in that, in the described step (2), hiding Info that need are encrypted, with step (1) generated＜i, S, C〉key vector, be encrypted hiding Info after obtaining encrypting according to existing open bidirectional encipher algorithm;
In the described step (2), hiding Info with cleartext information and after encrypting carried out amalgamation and adopted following algorithm: the first is to adopt separator, namely cleartext information is designated as M
1, hiding Info after the encryption is designated as M
2, use separator w to splice; The second is to adopt to insert splicing, namely is inserted into the cleartext information the inside hiding Info according to fixing insertion position;
In the described step (3), the two-dimension code information generated is generated image in 2 D code adopt following two-dimension code generating algorithm: PDF417, Datamatrix, Maxicode, QR Code, Code 49, Code 16K, Vericode, Ultracode.
4. the two-dimension code coding/decoding method based on the local color verification is characterized in that, may further comprise the steps:
(1) according to the pigmented section coding and decoding table of predefined, read the pigmented section data on the image in 2 D code, the pigmented section data comprise the shape of pigmented section quantity, each pigmented section, the color of each pigmented section;
(2) read image in 2 D code, color region being arranged as black region in the image in 2 D code of part dyeing, then image in 2 D code is used as standard black and white image in 2 D code, Application standard two-dimension code decoding algorithm is decoded;
(3) decoded information is decrypted by decipherment algorithm take the pigmented section data as key, obtains the raw information of image in 2 D code.
5. the two-dimension code coding/decoding method based on the local color verification according to claim 4, it is characterized in that, in the described step (3), decoded information comprises hiding Info and the unencrypted cleartext information of having encrypted, and step is as follows: at first by splitting algorithm decoded information is split as hiding Info of encryption and unencrypted cleartext information; The pigmented section data that generate with step (1) that hide Info that to encrypt again adopt decipherment algorithm to be decrypted as key, obtain at last the raw information of image in 2 D code.
6. the two-dimension code coding/decoding method based on the local color verification according to claim 5, it is characterized in that, in the described step (3), it is that amalgamation algorithm according in the encryption algorithm decides that hiding Info with cleartext information and after encrypting splits, if employing separator, then seek and carry out expressly and the separator of the fractionation foundation of ciphertext, be respectively clear data and encrypt data before and after the separator; If the insertion of adopting splicing then according to fixing insertion position, restores respectively with cleartext information hiding Info;
In the described step (3), the two-way decipherment algorithm by standard is decrypted take the pigmented section data as key to the resulting encrypt data of step (2).
7. the two-dimension code code device based on the local color verification is characterized in that, comprising:
The pigmented section data generating device is used in the pigmented section coding and decoding table generation pigmented section of two-dimension code template according to predefined;
The two-dimension code generating apparatus comprises encrypting module and two-dimension code coding module, and described encrypting module is connected with described two-dimension code coding module, and described two-dimension code generating apparatus is connected with the pigmented section data generating device; Encrypting module is used for take the pigmented section data as key hiding Info of need encryption being encrypted; The two-dimension code coding module, the two-dimension code information generated that is used for obtaining after the encrypting module encryption generates the two-dimension code black and white image;
The two-dimension code color image forming apparatus dyes to the two-dimension code black and white image that the two-dimension code generating apparatus generates according to the data of pigmented section data generating device, obtains the two-dimension code coloured image of local dyeing.
8. the two-dimension code code device based on the local color verification according to claim 7, it is characterized in that, described two-dimension code generating apparatus also comprises die section, die section is used for the cleartext information that will need not encrypt and hiding Info of having encrypted carried out amalgamation, then the data after the amalgamation is sent to the two-dimension code coding module; Described die section is connected with encrypting module, two-dimension code coding module respectively.
9. the two-dimension code decoding device based on the local color verification is characterized in that, comprising:
Two-dimension code pigmented section reading device is used for reading image in 2 D code pigmented section data according to the pigmented section coding and decoding table of predefined;
The two-dimension code reading device comprises:
Read module is used for reading image in 2 D code;
The two-dimension code decoder module is used for the image in 2 D code information that read module reads is decoded;
Deciphering module is used for take the pigmented section data as key hiding Info of the rear encryption of decoding being decrypted;
Described read module, two-dimension code decoder module, deciphering module connect successively.
10. the two-dimension code decoding device based on the local color verification according to claim 9, it is characterized in that, described two-dimension code reading device also comprises the fractionation module, is used for the decoded information of two-dimension code decoder module is split into not encrypted cleartext information and encrypted hiding Info; Described fractionation module is connected with two-dimension code decoder module, deciphering module respectively.
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103310258A (en) * | 2013-06-09 | 2013-09-18 | 江苏科技大学 | Self-adaptive extended black and while code coding method |
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