CN110009079A - A kind of label identification method and equipment based on two dimensional code - Google Patents
A kind of label identification method and equipment based on two dimensional code Download PDFInfo
- Publication number
- CN110009079A CN110009079A CN201910306956.7A CN201910306956A CN110009079A CN 110009079 A CN110009079 A CN 110009079A CN 201910306956 A CN201910306956 A CN 201910306956A CN 110009079 A CN110009079 A CN 110009079A
- Authority
- CN
- China
- Prior art keywords
- label
- dimensional code
- data
- identification method
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
Abstract
The present invention relates to field of data recognition, especially planar bar code technology.The present invention proposes a kind of label identification method based on two dimensional code, comprising: step 1: obtaining the encryption data of two dimensional code；Step 2: decrypting the encryption data, obtain label data；Step 3: the signature in comparison label data and tag recognition apparatus；Step 4: comparing result is presented.The present invention solves tag recognition mode of the existing technology and relies on network big, and bad adaptability and the low technical problem of safety improve anti-fake adaptability, and save anti-fake cost, protect the personal secrets of data.
Description
Technical field
The present invention relates to software approach fields, especially planar bar code technology.
Background technique
Two dimensional code especially needs to carry out efficiently article in hi-tech industry, storage transport service, wholesale and retail industry etc.
The industry of beacon information is widely used.The prior art one is the Chinese patent application that patent publication No. is CN208538405U,
Technical solution is as shown in Figure 1.It discloses a kind of primary and secondary code antifalsification labels.The prior art one is needed by inside and outside two layers packaging
Alphabetical two dimensional code, the combination of the parsing result of two two dimensional codes could judge its true and false.But the setting limits outside it
Packaging, can only some specific packaging can just be put into specific product.This can make in practical operation process to generate
At great inconvenience.Especially verification process, the manpower and material resources consumed required for this are larger.Furthermore the program is authenticated
Journey depends on data platform, it means that the program must just can be carried out anti-fake under conditions of having network.And data platform
Maintenance also substantially increase the cost of system.The prior art two is the Chinese patent Shen that patent publication No. is CN109389001A
Please, technical solution is as shown in Figure 2.It discloses a kind of concrete sample witnesses anti-fake with image recognition based on two dimensional code to take
Sample system and method.According to technical solution Fig. 2 it is found that the technical solution relies on cloud service data center, it is necessary to there is network
Under the conditions of carry out.It, the case where inevitably encountering unstable networks, can not be normal so as to cause anti-counterfeit recognition in real scene utilization
Progress the case where.In addition, cloud service data center needs the cost of data maintenance, the operating cost of system is higher.Data are uploaded to
Yun Hou, there are risks for the safety of data.Although Cloud Server provider all can doing everything possible property deprotection data safety,
But its safety 100% can not be guaranteed.
Summary of the invention
The present invention is to solve tag recognition mode of the existing technology to rely on network big, bad adaptability and safety
Low technical problem provides a kind of tagged manner based on two dimensional code, and anti-fake adaptability can be improved in which, and saves anti-
Pseudo- cost, protects the personal secrets of data.
To achieve the above object, the present invention provides a kind of label identification method based on two dimensional code, comprising:
Step 1: obtaining the encryption data of two dimensional code；
Step 2: decrypting the encryption data, obtain label data；
Step 3: the signature in comparison label data and tag recognition apparatus；
Step 4: comparing result is presented.
It preferably, further include two dimensional code preparation process, the preparation process includes:
Preparation process 1: acquisition label information；
Preparation process 2: the label information of the acquisition is encoded to binary data, is stored to two dimensional code；
Preparation process 3: the two dimensional code and label are integrated.
Preferably, the step 2 are as follows:
Symmetrical code key is used offline, and/or, asymmetric code key ciphertext data.
Preferably, the abnormal data of the presentation is the difference of label data and label information, the variance data are as follows: double
Variance is different or tripartite's difference.
Preferably, the ciphering process is asymmetric encryption, symmetric cryptography；The compression process is that binary system compression is calculated
Method.
Preferably, the label information includes: label object title, label object production time, label object configuration, mark
Sign object number, website links；The label object is machinery equipment, food, daily necessities；The label information acquisition mode
Are as follows: it is manually entered, file input, voice input.
Preferably, the label information cataloged procedure of the preparation process 2 includes ciphering process and compression process.
Preferably, the preparation process 3 includes: printing two dimensional code, and the two dimensional code of the printing is labelled on label object；
Or, two dimensional code is printed directly on label object.
Preferably, the encryption data includes adding with first in the identification equipment for the encryption data for obtaining two dimensional code
Close the second ciphering signature to match of signing.
Preferably, when scanning the encryption data of the two dimensional code using identification equipment, if the first ciphering signature and second adds
Close signatures match then exports the encryption data；Otherwise, stop output process or display reminding information.
A kind of tag recognition apparatus based on two dimensional code, comprising:
Resolution unit is inputted, for obtaining two dimensional code and parsing the encryption data of the two dimensional code；
Decryption unit obtains label data for decrypting the encryption data；
Compare display unit, for comparing the signature in label data and tag recognition apparatus, label data and different is presented
Regular data.
Preferably, the input resolution unit includes analysis program.
Preferably, the decryption unit includes symmetrical code key and/or asymmetric code key.
Preferably, the abnormal data of the presentation is the difference of label data and label information, and the variance data includes
Prompt information, the prompt information are as follows: it is identical, it is different, it can not compare.
Preferably, the identification equipment is plate, cell phone, computer, equipment for customizing；Or, based on cell phone
Application software or small routine.
To solve the problems, such as that the prior art there is technical issues that data label, two-dimension code label of the invention
It can store a large amount of data tag information, realize offline veritification, the anti-counterfeiting verification of label is realized using minimum cost, it can also
To solve the restricted problem of region network, so that the veritification applicability of label is stronger.
Detailed description of the invention
Fig. 1 is one structural schematic diagram of prior art
Two structural schematic diagram of the position Fig. 2 prior art
Fig. 3 is the label identification method flow chart based on two dimensional code that the embodiment of the present invention one provides
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to the scope of the present invention.
Big, bad adaptability and safety low skill are relied in view of tag recognition mode existing for existing method network
Art problem provides a kind of label identification method and equipment based on two dimensional code.
Embodiment one
The present embodiment provides a kind of label identification methods based on two dimensional code, as shown in Figure 3.
Design cycle of the invention is as follows:
1. acquiring label information
Here label information is generally but is not limited to: needing principal name to be protected, the production time of main body, main body master
It configures, the number etc. of main body.
Above-mentioned main body can be machinery equipment, food, daily necessities etc..Acquisition mode, which can be, to be manually entered, table number
According to upload, language in-put etc..
2. generating " two dimensional code ", and printed together with label
Above-mentioned " two dimensional code " is a kind of two dimensional code of high capacity." two dimensional code " can support the total amount of label information, i.e.,
Label information can all be encoded as binary data, and store in " two dimensional code ".The generating process of " two dimensional code " is a kind of only
The generation program of vertical exploitation generates program and combines a variety of encryptions and compress technique, and tactical rule complicated difficult is to crack.It is above-mentioned more
Kind encryption technology can be asymmetric encryption, symmetric cryptography etc..Above-mentioned compress technique is mainly binary compression algorithms.So
" two dimensional code " can not be forged, and can not distort, and guarantee the safety of data.Since all data have been stored in " two dimensional code "
It is interior, so not needing server to support data to store, cost is greatly saved.The information in original data library will be by one one
A " two dimensional code " is undertaken, and the decentralization of data is realized.
The display form of " two dimensional code " can be with combination tag, and general " two dimensional code " can be presented on the lower section of label.Printing mark
When label, directly " two dimensional code " is printed together.Certain user wishes to protect that label information is not revealed or label information can only be to
It when designated person checks, can directly use " two dimensional code " as label, rather than combine conventional labels.Only possess decryption to set
Standby personnel can just check label information.While this method has accomplished anti-fake, it can protect main information and be not stolen.
3. by label in conjunction with need main body to be protected
Label can be pasted on body surfaces, can also be pasted on survey or label in main body and directly be printed upon body table
Face or interior survey.The effect for such as needing to realize single identification, after equipment used in other words, label Verification equal behaviour in vain
Make, then label can be placed at equipment packages, food opening etc..User confirms after the main body true and false, it is necessary to tear to pieces mark
Carried out after label using.After two dimensional code is impaired, scanning will be no longer supported to parse, that is, the main body true and false can not be verified.Such as one
Equipment to be protected is needed, after label is torn to pieces, which will have the function of anti-fake protection no longer, is also possible to prevent equipment and falls
Situations such as selling protects the interests of manufacturer.
Embodiment two
The tag recognition identification based on two dimensional code that the present embodiment provides a kind of, the equipment contain " two dimensional code " parsing and decryption
Etc. programs, above equipment can be divided into following 5 part:
Importation: for receiving " two dimensional code "；
Parsing part: the data of encryption are obtained for parsing " two dimensional code " containing " two dimensional code " analysis program；
Decryption portion: using the asymmetric code key in equipment, ciphertext data, and signature section letter is obtained according to integration rules
Breath；
Rating unit: for comparing signature；
Present part: for rendering as a result, presentation mode can with multiplicity both sides' difference or tripartite's difference.
Device type can be with are as follows: pad, cell phone, customization android equipment etc..Above-mentioned cell phone can be utilization
App on cell phone is also possible to small routine etc..If identified using small routine, need just may be used in the case where network
To realize that label is veritified.
Identification equipment contains the ciphering signature to match with two dimensional code, and equally contains and two dimensional code phase in " two dimensional code "
The ciphering signature matched.While the setting can guarantee the safety of equipment for customizing, accomplish the binding of equipment Yu " two dimensional code ",
The double-deck guarantee is accomplished.If there is criminal wants steal information or spurious information, then he must steal generation code
While, oneself reforming equipment, technical difficulty and cost are huge.So " two dimensional code " has and can only be customized equipment parsing,
It ensure that the private ownership and authority of information.
Verification procedure after decryption completion, can be naked eye comparing, be also possible to be directly realized by OCR comparison, card
Bright data it is authentic and valid.The anti-fake of label may be implemented in this method, protects the safety of information and main body.
All data of the present invention are stored in " two dimensional code ", and analysis program is stored in advance in equipment, so it is of the invention
It may be implemented to complete identification under off-line state and veritify.
In conclusion the data medium acquisition methods for the two dimensional code that the embodiment of the present invention provides, have below beneficial to effect
Fruit:
(1) label of the invention based on " two dimensional code " can verify the label true and false in off-line case, it is right to strengthen its
The adaptability of environment, expands use scope；
(2) the mating setting of " two dimensional code " and professional equipment of the invention, protect data it is safe while, strengthen letter
The authority of breath；
(3) " two dimensional code " in label of the present invention is money information carrier, it is no longer necessary to which the support of huge database is saved
Data cost, realizes decentralization.
Particular embodiments described above, to the purpose of the present invention, technical scheme and beneficial effects have been carried out further in detail
Describe in detail it is bright, it should be understood that above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (15)
1. a kind of label identification method based on two dimensional code characterized by comprising step 1: obtaining the encryption number of two dimensional code
According to；
Step 2: decrypting the encryption data, obtain label data；
Step 3: the signature in comparison label data and tag recognition apparatus；
Step 4: label data and abnormal data is presented.
2. one kind is as described in claim 1 based on the label identification method of two dimensional code, which is characterized in that further include that two dimensional code prepares
Process, the preparation process include:
Preparation process 1: acquisition label information；
Preparation process 2: the label information of the acquisition is encoded to binary data, is stored to two dimensional code；
Preparation process 3: the two dimensional code and label are integrated.
3. one kind is as described in claim 1 based on the label identification method of two dimensional code, which is characterized in that the step 2 are as follows:
Symmetrical code key is used offline, and/or, asymmetric code key ciphertext data.
4. one kind is as described in claim 1 based on the label identification method of two dimensional code, which is characterized in that the abnormal number of the presentation
According to the difference for label data and label information, the variance data are as follows: both sides' difference or tripartite's difference.
5. one kind is as described in claim 1 based on the label identification method of two dimensional code, which is characterized in that the ciphering process is non-
Symmetric cryptography, symmetric cryptography；The compression process is binary compression algorithms.
6. one kind is as claimed in claim 2 based on the label identification method of two dimensional code, which is characterized in that the label information packet
It includes: label object title, label object production time, label object configuration, label object number, website links；The label
Object is machinery equipment, food, daily necessities；The label information acquisition mode are as follows: be manually entered, file input, voice input；
The label is paper labels or electronic tag.
7. one kind is as claimed in claim 2 based on the label identification method of two dimensional code, which is characterized in that the preparation process 2
Label information cataloged procedure includes ciphering process and compression process.
8. one kind is as claimed in claim 2 based on the label identification method of two dimensional code, which is characterized in that the preparation process 3 wraps
Include: the two dimensional code of the printing is labelled on label object by printing two dimensional code；Or, two dimensional code is printed directly to label object
On.
9. one kind is as described in claim 1 based on the label identification method of two dimensional code, which is characterized in that the encryption data includes
The second ciphering signature to match with the first ciphering signature in the identification equipment of the encryption data for obtaining two dimensional code.
10. one kind is as claimed in claim 9 based on the label identification method of two dimensional code, which is characterized in that swept using identification equipment
When retouching the encryption data of the two dimensional code, if the first ciphering signature is matched with the second ciphering signature, the encryption data is exported；
Otherwise, stop output process or display reminding information.
11. a kind of tag recognition apparatus based on two dimensional code characterized by comprising
Resolution unit is inputted, for obtaining two dimensional code and parsing the encryption data of the two dimensional code；
Decryption unit obtains label data for decrypting the encryption data；
Compare display unit, for comparing the signature in label data and tag recognition apparatus, label data and abnormal number is presented
According to.
12. one kind is as claimed in claim 11 based on the tag recognition apparatus of two dimensional code, which is characterized in that the input parsing is single
Member includes analysis program.
13. one kind is as claimed in claim 11 based on the tag recognition apparatus of two dimensional code, which is characterized in that the decryption unit packet
Symmetrical code key is included, and/or, asymmetric code key.
14. one kind is as claimed in claim 11 based on the tag recognition apparatus of two dimensional code, which is characterized in that the exception of the presentation
Data are the difference of label data and label information, and the variance data includes prompt information, the prompt information are as follows: it is identical,
Difference can not compare.
15. one kind is as claimed in claim 11 based on the tag recognition apparatus of two dimensional code, which is characterized in that the identification equipment is
Plate, mobile phone, computer, equipment for customizing；Or, application software or small routine based on mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306956.7A CN110009079A (en) | 2019-04-17 | 2019-04-17 | A kind of label identification method and equipment based on two dimensional code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306956.7A CN110009079A (en) | 2019-04-17 | 2019-04-17 | A kind of label identification method and equipment based on two dimensional code |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110009079A true CN110009079A (en) | 2019-07-12 |
Family
ID=67172636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910306956.7A Pending CN110009079A (en) | 2019-04-17 | 2019-04-17 | A kind of label identification method and equipment based on two dimensional code |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110009079A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064739A (en) * | 2019-12-26 | 2020-04-24 | 中国人民解放军陆军工程大学 | Data transmission platform and method thereof |
| CN111813354A (en) * | 2020-06-28 | 2020-10-23 | 宁波心维标签制品有限公司 | Anti-counterfeit label printing system and printing method thereof |
| CN112039928A (en) * | 2020-11-05 | 2020-12-04 | 飞天诚信科技股份有限公司 | Method and system for processing certificate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968726A (en) * | 2012-10-23 | 2013-03-13 | 杭州杰德科技有限公司 | Two-dimensional code network anti-fake method with secondary encryption characteristics |
| CN103034884A (en) * | 2012-12-07 | 2013-04-10 | 北京印刷学院 | Commodity packaging anti-fake device and device and system for anti-fake recognition with built-in secret key |
| CN103473584A (en) * | 2013-09-25 | 2013-12-25 | 中山爱科数字科技股份有限公司 | Improvement for two-dimension code label |
| CN104091272A (en) * | 2014-07-09 | 2014-10-08 | 北京信长城技术研究院 | Identifying and tracing system with unique identity and method |
| CN104112205A (en) * | 2014-07-09 | 2014-10-22 | 北京信长城技术研究院 | Commodity authentication and source tracing system and method based on combined public-key cryptosystem |
| US20160267493A1 (en) * | 2013-12-31 | 2016-09-15 | Tencent Technology (Shenzhen) Company Limited | Product anti-counterfeiting method, apparatus and system |
| WO2017016318A1 (en) * | 2014-11-05 | 2017-02-02 | 祝国龙 | Credible label generation and verification method and system based on asymmetric cryptographic algorithm |
| CN106803116A (en) * | 2017-02-22 | 2017-06-06 | 济南浪潮高新科技投资发展有限公司 | A kind of method and device for generating Asset Tag |
| CN108629603A (en) * | 2018-05-07 | 2018-10-09 | 烟台大学 | A kind of antiforge method for commodities based on Quick Response Code |
-
2019
- 2019-04-17 CN CN201910306956.7A patent/CN110009079A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968726A (en) * | 2012-10-23 | 2013-03-13 | 杭州杰德科技有限公司 | Two-dimensional code network anti-fake method with secondary encryption characteristics |
| CN103034884A (en) * | 2012-12-07 | 2013-04-10 | 北京印刷学院 | Commodity packaging anti-fake device and device and system for anti-fake recognition with built-in secret key |
| CN103473584A (en) * | 2013-09-25 | 2013-12-25 | 中山爱科数字科技股份有限公司 | Improvement for two-dimension code label |
| US20160267493A1 (en) * | 2013-12-31 | 2016-09-15 | Tencent Technology (Shenzhen) Company Limited | Product anti-counterfeiting method, apparatus and system |
| CN104091272A (en) * | 2014-07-09 | 2014-10-08 | 北京信长城技术研究院 | Identifying and tracing system with unique identity and method |
| CN104112205A (en) * | 2014-07-09 | 2014-10-22 | 北京信长城技术研究院 | Commodity authentication and source tracing system and method based on combined public-key cryptosystem |
| WO2017016318A1 (en) * | 2014-11-05 | 2017-02-02 | 祝国龙 | Credible label generation and verification method and system based on asymmetric cryptographic algorithm |
| CN106803116A (en) * | 2017-02-22 | 2017-06-06 | 济南浪潮高新科技投资发展有限公司 | A kind of method and device for generating Asset Tag |
| CN108629603A (en) * | 2018-05-07 | 2018-10-09 | 烟台大学 | A kind of antiforge method for commodities based on Quick Response Code |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064739A (en) * | 2019-12-26 | 2020-04-24 | 中国人民解放军陆军工程大学 | Data transmission platform and method thereof |
| CN111064739B (en) * | 2019-12-26 | 2022-04-26 | 中国人民解放军陆军工程大学 | Data transmission platform and method thereof |
| CN111813354A (en) * | 2020-06-28 | 2020-10-23 | 宁波心维标签制品有限公司 | Anti-counterfeit label printing system and printing method thereof |
| CN111813354B (en) * | 2020-06-28 | 2023-08-11 | 宁波心维标签制品有限公司 | Anti-counterfeit label printing system and printing method thereof |
| CN112039928A (en) * | 2020-11-05 | 2020-12-04 | 飞天诚信科技股份有限公司 | Method and system for processing certificate |
| CN112039928B (en) * | 2020-11-05 | 2021-03-16 | 飞天诚信科技股份有限公司 | Method and system for processing certificate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hansmann et al. | Smart card application development using Java | |
| CN101432778B (en) | PIN servicing | |
| CN102255917B (en) | Method, system and device for updating and synchronizing keys of dynamic token | |
| US20150341370A1 (en) | Systems and methods relating to the authenticity and verification of photographic identity documents | |
| CN110009079A (en) | A kind of label identification method and equipment based on two dimensional code | |
| EP3017580B1 (en) | Signatures for near field communications | |
| US20090077104A1 (en) | System and method for sensitive data field hashing | |
| CN103854170A (en) | Payment system and payment method based on two-dimension code | |
| CN101651675A (en) | Method and system for enhancing security of network transactions | |
| CN102930307A (en) | Anti-counterfeiting authentication method for famous wine | |
| CN102222389A (en) | Realization method and device of fingerprint comparison in financial IC (integrated circuit) card | |
| CN103034884A (en) | Commodity packaging anti-fake device and device and system for anti-fake recognition with built-in secret key | |
| CN101504731B (en) | Movable recognition system based on NFC | |
| CN102202051A (en) | Credible two-dimensional code system and application method thereof | |
| CN109951427B (en) | Product tracing method and system and cloud tracing platform | |
| KR102319744B1 (en) | Anti-forgery system using QR code and blockchain network and method thereof | |
| CN105791277B (en) | A kind of identity authentication method | |
| CN107886333A (en) | A kind of Antiforge system and its method for anti-counterfeit with dynamic anti-fake information | |
| CN101452539A (en) | Mobile identification method based on NFC | |
| CN101499138B (en) | Method of anti-counterfeit apparatus for cigarette by passive radio frequency label | |
| CN110210270A (en) | Two-dimensional barcode information safety encryption and system and image in 2 D code analytic method and system | |
| CN101409622B (en) | Digital signing system and method | |
| CN101223729B (en) | Updating a mobile payment device | |
| CN109992984A (en) | A kind of file identification method and equipment based on two dimensional code | |
| CN110111461A (en) | A kind of pass identified off-line method and apparatus based on two dimensional code |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |