CN108959949B - Method and system for carrying out safe information transmission through graphic coding data - Google Patents

Abstract

The invention discloses a method and a system for carrying out safe information transmission through graphic coded data, wherein the method comprises the following steps: determining a coding ratio of each image region to which the graphic coding data is applied; generating unencrypted original graphic encoding data which accords with the encoding proportion based on the information content to be transmitted; performing structural analysis on the information content to be transmitted, and dividing the information content to be transmitted into a plurality of information subsets according to the result of the structural analysis; dividing a data information area of the original image coding data which is not encrypted into a plurality of sub-areas according to each information subset, and determining an encryption unit and an encryption mode for each sub-area; and for each sub-region, taking the encryption unit as a minimum encryption object, encrypting each encryption unit according to an encryption mode to generate encrypted graphics coded data, and performing safe information transfer based on the encrypted graphics coded data.

Description

A method and system for secure information transmission through graphic coded data

technical field

The present invention relates to the field of information processing, and more particularly, to a method and system for secure information transmission through graphic coded data.

Background technique

The ubiquity of encoded data has enabled devices with computing power to read, process, and express information. At present, the trend of information processing by mobile devices through QR codes has become more and more common. Two-dimensional code is a very popular encoding method applied on mobile devices in recent years. It can store more information and represent more data types than traditional barcodes.

The two-dimensional code uses a specific geometric figure to record data symbol information with black and white figures distributed on a plane (two-dimensional direction) according to a certain rule. In coding, the two-dimensional code cleverly uses the concept of "0" and "1" bit streams that constitute the internal logic basis of the computer, and uses several geometric shapes corresponding to binary to represent text and numerical information. Image input equipment or photoelectric scanning equipment can automatically read two-dimensional codes to realize automatic information processing. Two-dimensional code has some common features of barcode technology: each code system has its specific character set, each character occupies a certain width, and has a certain verification function. In addition, the two-dimensional code also has the function of automatically identifying the information of different lines and the function of processing the rotation change points of the graphics.

Currently, QR codes are all square in shape, for example, quick response QR codes. As shown in FIG. 2, the QR code 200 is square and exists in black and white. FIG. 2 is a schematic diagram of a QR code in the prior art, in which 3 of the 4 corners of the QR code 200 are provided with a small square pattern that resembles the character "Back". These 3 patterns are calibrations that help the decoding software to locate the QR code 200, so that the user does not need to align and scan at any angle, the data can still be read correctly.

However, the current two-dimensional code uses plaintext to transmit information, so the information is easy to be tampered with or stolen. This clear text information transmission may cause great hidden dangers to the user's information security.

SUMMARY OF THE INVENTION

According to one aspect of the present invention, there is provided a method for secure information transfer through graphic coded data, the method comprising:

Determine the coding ratio of the image area used by each application for the graphic encoded data based on the display range of each of the multiple applications for displaying the graphic encoded data and the maximum amount of information of a single graphic encoded data;

When a specific application among the multiple applications wishes to transmit the information content, generating unencrypted original graphic encoding data that conforms to the encoding ratio based on the information content to be transmitted;

Perform structure analysis on the information content to be transmitted, and divide the information content to be transmitted into a plurality of information subsets according to the result of the structure analysis;

Divide the data information area of the unencrypted original graphic coded data into a plurality of sub-areas according to each information subset, and determine an encryption unit and an encryption method for each sub-area; and

For each sub-area, the encryption unit is taken as the minimum encryption object, and each encryption unit is encrypted according to the encryption method to generate encrypted graphic encoding data, and based on the encrypted graphic encoding data, secure information transmission is performed.

Before determining the encoding ratio of the image area used by each application for the graphic encoded data based on the display range for displaying the graphic encoded data and the maximum amount of information of a single graphic encoded data among the multiple applications, the method further includes:

Obtaining application description information associated with the user equipment, and determining, based on the application description information, multiple applications that wish to transmit information through the graphic coded data;

Determine the maximum amount of information required by each application to transmit information through a single graphic coded data according to the information transmission requirements of each of the multiple applications; and

The graphical interface for providing the graphically encoded data of each application is parsed to determine a display range that each application can use to display the graphically encoded data.

The application description information includes multiple description items, and the format of each description item is <application name, application type, associated device type, encoded data flag>.

The information transfer requirements of each application are determined according to the data integrity required for each application to transfer information through the graphics-encoded data.

The information delivery requirements include peak data volumes involved in order to satisfy data integrity.

According to the peak data amount, the maximum amount of information required by each application to transmit information through a single graphic coded data is determined.

The graphical interface is an interface of each application for information transmission using graphical coding data.

The display range is a range used to display the graphic coded data in the graphic interface.

Wherein, based on the display range of each application in the multiple applications for displaying the graphic coded data and the maximum information amount of a single graphic coded data, the coding ratio of the image area used by each application for the graphic coded data includes:

Determining the length and width of a display range used by each of the plurality of applications to display the graphically encoded data;

According to the width of the display range, determine the horizontal encoding quantity of each application for the image area of the image encoding data;

determining the number of vertical encodings of the image area for each application for the graphics encoded data according to the length of the display range and the maximum information amount of a single graphics encoded data; and

The encoding ratio of each application for the image region of the graphics encoded data is determined based on the horizontal encoding amount and the vertical encoding amount.

Wherein, according to the length of the display range and the maximum amount of information, determining the vertical encoding quantity of the image area used for the graphic encoding data by each application includes:

Determine the preselected number of vertical encodings according to the maximum amount of information and the number of horizontal encodings;

When it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings of the image area for each application for graphic encoding data.

The shape of the display area is a rectangle, and the shape of the image area is a rectangle.

The shape of the display area is a rectangle, and the shape of the image area is a rectangle.

Wherein the encoding ratio is 0.618.

The unencrypted original graphic encoding data conforming to the encoding ratio includes: configuration information, title information and data information.

It also includes compressing the title information and/or data information in the original graphics encoding data to generate compressed graphics encoding data, the compressed graphics encoding data having an area less than or equal to the original graphics encoding data.

Also included is information transfer based on the compressed graphics encoding data.

wherein the structure parsing is semantic structure parsing,

The structure analysis is performed on the information content to be transmitted, and the information content to be transmitted is divided into a plurality of information subsets according to the result of the structure analysis, including:

performing semantic structure analysis on the information content to be transmitted to generate a plurality of semantic structure subunits;

The information content to be transmitted is divided into a plurality of information subsets according to the plurality of semantic structure subunits.

where the structure parsing is delimiter structure parsing,

The structure analysis is performed on the information content to be transmitted, and the information content to be transmitted is divided into a plurality of information subsets according to the result of the structure analysis, including:

Delimiter structure analysis is performed on the information content to be transmitted to generate a plurality of delimiter structure subunits;

The information content to be delivered is divided into a plurality of information subsets according to the plurality of separator structure subunits.

The encryption method of each encryption unit is the same or different.

The encryption method is predetermined by the provider who provides the graphic coded data, or the encryption method is determined according to the requirements of the user who uses the graphic coded data.

The encryption unit is a single coding unit, multiple coding units or data blocks.

The coding units of the original graphic coded data are circle, rectangle and ellipse.

It also includes that the provider of the graphic encoding data receives an information processing request for the collaborative service, wherein the information processing request includes information content associated with the collaborative service and a structure description file of the collaborative service;

Parsing the structure description file of the collaborative service to determine a plurality of collaborative devices involved in the collaborative service and a collaborative task involved in each collaborative device;

Generates original graphic encoding data including data information according to the information content associated with the collaborative service, and divides the data information in the generated original graphic encoding data into a plurality of sub-data information based on the collaborative tasks involved in each collaborative device ;

determining an association relationship between the plurality of cooperating devices, and determining a hierarchical relationship for each sub-data information in the plurality of sub-data information based on the association relationship; and

The generated original graphic coded data is divided into a plurality of hierarchical graphic coded data based on the hierarchical relationship of each sub-data information, and each hierarchical graphic coded data is allocated to a corresponding cooperative device for information processing.

After each cooperating device performs information processing according to the corresponding hierarchical graphic encoding data, the results generated by each cooperating device through the information processing are combined to generate a response message, and the response message is sent to the provider of the graphics encoding data .

It also includes setting title information for each layered graphics coded data, wherein the title information of each layered graphics encoded data is the same, different or related to the title information of the generated original graphics encoded data.

Also includes, receiving a code division request for dividing the generated original graphic encoding data;

Parsing the code division request to determine the number N of subcodes;

dividing the data information included in the generated original graphic encoding data into N pieces of sub-data information; and

The generated original graphic coded data is divided into N sub-coded data according to the N pieces of sub-data information.

It also includes sending each of the N sub-coded data to a corresponding user equipment, wherein each user equipment is capable of receiving at least one sub-coded data.

It also includes setting header information for each sub-encoded data, wherein the header information of each sub-encoded data is the same, different or related to the header information of the generated original graphic encoded data.

It also includes: receiving a code division request for division of specific sub-coded data, and dividing the specific sub-coded data into a predetermined number of grand-coded data according to the code division request.

The generated original graphic coded data includes: primary scaling, system information and backup information, wherein the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information.

The generated original graphic encoding data also includes sub-scaling.

Also included in the configuration information of the sub-coded data includes: the quantity of the sub-coded data, the serial number of the sub-coded data, and the hash value of the original graphic-coded data.

Also included in the configuration information of the hierarchical graphic coding data includes: the quantity of the graphic coding data of the same level, the serial number of the graphic coding data of the same level, and the hash value of the graphic coding data of the upper level.

The title information is the summary information of the data information included in the generated graphic encoding data conforming to the encoding scale.

The data information of the sub-coded data includes the code error correction level of the original graphic encoded data and the partial data information of the original graphic encoded data.

Each of the plurality of hierarchical graphic coding data includes: an error correction level of the upper-level graphic coding data and partial data information of the upper-level coding data.

The configuration information further includes: configuration information version number, header information flag bit, block flag bit and self-defined configuration data.

The configuration information further includes: the total number of code blocks, the serial number of the current code block, and the hash value of the upper-level code block.

The header information also includes a compression flag.

It also includes generating encrypted graphics data in the following manner, generating a hash string for the title information of the unencrypted original graphics encoding data, and using the hash string to compare the data of the original graphics encoding data. The information is subjected to a byte-by-byte XOR operation, and the XOR-operated graphics encoding data is encrypted to generate encrypted graphics encoding data.

After receiving the encrypted graphics encoding data, decrypt the encrypted graphics encoding data to generate the graphics encoding data to be processed, generate a hash string for the title information of the graphics encoding data to be processed, and use The hash string performs byte-by-byte XOR operation on the data information of the to-be-processed graphics encoding data to obtain unencrypted original graphics encoding data.

The coordinated service is a service jointly completed by a plurality of coordinated devices.

The structure description file of the coordinated service is used to indicate the logical structure of the coordinated service, and the coordinated service can be divided into a plurality of sub-services based on the structure description file.

Each sub-service in the plurality of sub-services corresponds to a coordinated task involved in the corresponding coordinated device.

The association relationship among the plurality of cooperative devices includes: a peer relationship, a superior relationship, a subordinate relationship, and a conditional relationship.

According to another aspect of the present invention, there is provided a system for secure information transmission through graphic coded data, the system comprising:

A scale determining device, configured to determine the coding scale of each application for the image region of the coded graphic data based on the display range of each application in the plurality of applications for displaying the coded graphic data and the maximum amount of information of a single coded graphic data;

a generating device, configured to generate unencrypted original graphic encoding data that conforms to the encoding ratio based on the information content to be transmitted when a specific application among the multiple applications wishes to transmit the information content;

an analysis device, configured to perform structure analysis on the information content to be transmitted, and divide the information content to be transmitted into a plurality of information subsets according to the result of the structure analysis;

a processing device for dividing the data information area of the unencrypted original graphic coded data into a plurality of sub-areas according to each information subset, and determining an encryption unit and an encryption method for each sub-area; and

The encryption device is configured to, for each sub-area, take the encryption unit as the minimum encryption object and encrypt each encryption unit according to the encryption method, so as to generate encrypted graphics encoding data, and perform encryption based on the encrypted graphics encoding data. Secure information transfer.

Also includes an initialization device for acquiring application description information associated with the user equipment, and determining, based on the application description information, a plurality of applications that wish to perform information transmission through the graphic coded data;

Determine the maximum amount of information required by each application to transmit information through a single graphic coded data according to the information transmission requirements of each of the multiple applications; and

The graphical interface for providing the graphically encoded data of each application is parsed to determine a display range that each application can use to display the graphically encoded data.

The application description information includes multiple description items, and the format of each description item is <application name, application type, associated device type, encoded data flag>.

The initialization device determines the information transmission requirement of each application according to the data integrity required when each application performs information transmission through the graphic coded data.

The information delivery requirements include peak data volumes involved in order to satisfy data integrity.

The initialization device determines, according to the peak data amount, the maximum amount of information required for each application to transmit information through a single graphic coded data.

The graphical interface is an interface of each application for information transmission using graphical coding data.

The display range is a range used to display the graphic coded data in the graphic interface.

Wherein, the ratio determining means determines, based on the display range of each of the multiple applications for displaying the coded graphics data and the maximum amount of information of a single coded graphics data, the coding ratio of each application used for the image region of the coded graphics data includes:

Determining the length and width of a display range used by each of the plurality of applications to display the graphically encoded data;

According to the width of the display range, determine the horizontal encoding quantity of each application for the image area of the image encoding data;

determining the number of vertical encodings of the image area for each application for the graphics encoded data according to the length of the display range and the maximum information amount of a single graphics encoded data; and

The encoding ratio of each application for the image region of the graphics encoded data is determined based on the horizontal encoding amount and the vertical encoding amount.

Wherein, the ratio determining means for determining, according to the length of the display range and the maximum amount of information, determines the number of vertical encodings of the image area for each application to be used for graphic encoding data, including:

Determine the preselected number of vertical encodings according to the maximum amount of information and the number of horizontal encodings;

When it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings of the image area for each application for graphic encoding data.

The shape of the display area is a rectangle, and the shape of the image area is a rectangle.

The shape of the display area is a rectangle, and the shape of the image area is a rectangle.

Wherein the encoding ratio is 0.618.

The unencrypted original graphic encoding data conforming to the encoding ratio includes: configuration information, title information and data information.

It also includes a compressing device that compresses the title information and/or data information in the original graphics encoding data to generate compressed graphics encoding data, the area of the compressed graphics encoding data being less than or equal to the area of the original graphics encoding data. area.

Also included is information transfer based on the compressed graphics encoding data.

wherein the structure parsing is semantic structure parsing,

The parsing device performs structure analysis on the information content to be transmitted, and divides the information content to be transmitted into multiple information subsets according to the result of the structure analysis, including:

performing semantic structure analysis on the information content to be transmitted to generate a plurality of semantic structure subunits;

The information content to be transmitted is divided into a plurality of information subsets according to the plurality of semantic structure subunits.

where the structure parsing is delimiter structure parsing,

The parsing device performs structure analysis on the information content to be transmitted, and divides the information content to be transmitted into multiple information subsets according to the result of the structure analysis, including:

Delimiter structure analysis is performed on the information content to be transmitted to generate a plurality of delimiter structure subunits;

The information content to be delivered is divided into a plurality of information subsets according to the plurality of separator structure subunits.

The encryption method of each encryption unit is the same or different.

The encryption method is predetermined by the provider who provides the graphic coded data, or the encryption method is determined according to the requirements of the user who uses the graphic coded data.

The encryption unit is a single coding unit, multiple coding units or data blocks.

The coding units of the original graphic coded data are circle, rectangle and ellipse.

Also included is a partitioning device configured to cause a provider of graphically encoded data to receive an information processing request for a collaborative service, wherein the information processing request includes information content associated with the collaborative service and a structure description file of the collaborative service;

Parsing the structure description file of the collaborative service to determine a plurality of collaborative devices involved in the collaborative service and a collaborative task involved in each collaborative device;

Generates original graphic encoding data including data information according to the information content associated with the collaborative service, and divides the data information in the generated original graphic encoding data into a plurality of sub-data information based on the collaborative tasks involved in each collaborative device ;

determining an association relationship between the plurality of cooperating devices, and determining a hierarchical relationship for each sub-data information in the plurality of sub-data information based on the association relationship; and

The generated original graphic coded data is divided into a plurality of hierarchical graphic coded data based on the hierarchical relationship of each sub-data information, and each hierarchical graphic coded data is allocated to a corresponding cooperative device for information processing.

After each cooperating device performs information processing according to the corresponding hierarchical graphic coded data, the dividing means combines the results generated by each cooperating device through the information processing to generate a response message, and sends the response message to the receiver of the graphic coded data. provider.

It also includes setting means for setting title information for each layered graphics coded data, wherein the title information of each layered graphics encoded data is the same, different or related to the title information of the generated original graphics encoded data.

It also includes a dividing device for receiving a code dividing request for dividing the generated original graphic coded data;

Parsing the code division request to determine the number N of subcodes;

dividing the data information included in the generated original graphic encoding data into N pieces of sub-data information; and

The generated original graphic coded data is divided into N sub-coded data according to the N pieces of sub-data information.

The dividing means sends each of the N sub-coded data to a corresponding user equipment, wherein each user equipment is capable of receiving at least one sub-coded data.

It also includes setting means for setting header information for each sub-coded data, wherein the header information of each sub-coded data is the same as, different from or related to the header information of the generated original graphic coded data.

The dividing means receives a code dividing request for dividing specific sub-coded data, and divides the specific sub-coded data into a predetermined number of grand-coded data according to the code dividing request.

The generated original graphic coded data includes: primary scaling, system information and backup information, wherein the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information.

The generated original graphic encoding data also includes sub-scaling.

A setting device is also included, and the configuration information of the sub-coded data includes: the quantity of the sub-coded data, the serial number of the sub-coded data, and the hash value of the original graphic-coded data.

Also included in the configuration information of the hierarchical graphic coding data includes: the quantity of the graphic coding data of the same level, the serial number of the graphic coding data of the same level, and the hash value of the graphic coding data of the upper level.

The title information is the summary information of the data information included in the generated graphic encoding data conforming to the encoding scale.

The data information of the sub-coded data includes the code error correction level of the original graphic encoded data and the partial data information of the original graphic encoded data.

Each of the plurality of hierarchical graphic coding data includes: an error correction level of the upper-level graphic coding data and partial data information of the upper-level coding data.

The configuration information further includes: configuration information version number, header information flag bit, block flag bit and self-defined configuration data.

The configuration information further includes: the total number of code blocks, the serial number of the current code block, and the hash value of the upper-level code block.

The header information also includes a compression flag.

The encrypting device generates encrypted graphic coded data in the following manner, generates a hash string for the title information of the unencrypted original graphic coded data, and uses the hash string to perform a hash on the original graphic coded data. Byte-by-byte XOR operation is performed on the data information, and the XOR-operated graphics encoding data is encrypted to generate encrypted graphics encoding data.

After receiving the encrypted graphics encoding data, decrypt the encrypted graphics encoding data to generate the graphics encoding data to be processed, generate a hash string for the title information of the graphics encoding data to be processed, and use The hash string performs byte-by-byte XOR operation on the data information of the to-be-processed graphics encoding data to obtain unencrypted original graphics encoding data.

The coordinated service is a service jointly completed by a plurality of coordinated devices.

The structure description file of the coordinated service is used to indicate the logical structure of the coordinated service, and the coordinated service can be divided into a plurality of sub-services based on the structure description file.

Each sub-service in the plurality of sub-services corresponds to a coordinated task involved in the corresponding coordinated device.

The association relationship among the plurality of cooperative devices includes: a peer relationship, a superior relationship, a subordinate relationship, and a conditional relationship.

According to yet another aspect of the present invention, there is provided a mobile terminal comprising or for executing the system as described above.

Description of drawings

Exemplary embodiments of the present invention may be more fully understood by reference to the following drawings:

FIG. 1 is a flow chart of a method for secure information transmission through graphic coded data according to a preferred embodiment of the present invention;

2 is a schematic diagram of a QR code in the prior art;

FIG. 3 is a schematic diagram of graphics encoded data according to a preferred embodiment of the present invention;

FIG. 4 is a schematic diagram of the overall structure of the graphic encoding data according to the preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of the overall structure of the graphic coded data according to another preferred embodiment of the present invention;

6 is a schematic diagram of dividing graphic coded data according to a preferred embodiment of the present invention;

7 is a schematic diagram of an overall structure of a subcode according to a preferred embodiment of the present invention;

FIG. 8 is a schematic diagram of a main calibration and a sub-calibration according to a preferred embodiment of the present invention;

9 is a schematic diagram of a symbol structure according to a preferred embodiment of the present invention;

FIG. 10 is a schematic diagram of secure information transfer through graphically encoded data according to a preferred embodiment of the present invention; and

FIG. 11 is a schematic structural diagram of a system for secure information transmission through graphic coded data according to a preferred embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of this thorough and complete disclosure invention, and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the invention. In the drawings, the same elements/elements are given the same reference numerals.

Unless otherwise defined, terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is to be understood that terms defined in commonly used dictionaries should be construed as having meanings consistent with the context in the related art, and should not be construed as idealized or overly formal meanings.

FIG. 1 is a flowchart of a method 100 for secure information transfer through graphically encoded data according to a preferred embodiment of the present invention. As shown in FIG. 1 , method 100 begins at step 101 .

In step 101 , an encoding ratio of an image region of each application for displaying the encoded graphics data is determined based on a display range of each of the multiple applications for displaying the encoded graphics data and the maximum information amount of a single encoded graphics data. Wherein, determining the encoding ratio of the image area for each application for displaying the encoded graphic data based on the display range for displaying the encoded graphic data and the maximum amount of information includes: determining the length and width of the display range for displaying the encoded graphic data . At present, the shape of a mobile terminal (for example, a mobile phone) is mostly rectangular or approximately rectangular. For this reason, the display plane of the display screen of the mobile terminal is also usually rectangular or approximately rectangular, that is, both the mobile terminal and the display screen have a width and a length. Generally, the length is greater than the width, and in this application, the length and width will not change with the horizontal and vertical positions of the mobile terminal. The length and width of the display range determined in the present application are the largest display area or range that can be used to display graphic encoded data.

According to the width of the display range, each application is used to determine the number of horizontal encoding of the image area of the image encoding data. Generally, the width occupied by the horizontal encoding of the image area used for the graphic encoding data is smaller than the width of the display range. As shown in FIG. 3 , the width of the horizontal encoding is, for example, the distance between the two main scales 311-1 and 311-2 (including itself) located in the upper part of the image encoding data, and the width of the vertical encoding is, for example, the width of the image encoding The distance between the two main scales 311-2 and 311-3 (including itself) of the upper part of the data. It should be understood that, when the graphic coded data contains less data information, the width of the graphic coded data will not occupy the full width of the display range. That is, the width of the display range can be considered as the maximum width of the image area for each application for the graphics encoded data, and is determined based on the maximum width of the image area and the size of a symbol (or 1/4 symbol) Maximum number of horizontal encodings.

According to the length of the display range and the maximum amount of information, each application is used to determine the number of vertical encoding of the image area of the image encoded data. Wherein, determining the vertical encoding quantity of each application for the image area of the graphic coded data according to the length of the display range and the maximum information amount includes: determining a preselected vertical encoding quantity according to the maximum information amount and the horizontal encoding quantity. The maximum amount of information involved in the data information of the graphics encoded data determines the area of the graphics encoded data, for example, the area of the graphics encoded data can be determined based on the maximum amount of information and the size of a symbol (or 1/4 symbol). For example, in the case where the horizontally encoded number of image regions for graphics encoded data is determined, the vertically encoded number of image regions for graphics encoded data per application may be determined according to the length of the display range and the maximum amount of information. This is because the maximum information amount of a single graphic coded data can determine the number of symbols of this graphic coded data, and the number of vertical codes can be determined according to the number of symbols and the number of horizontal codes.

When it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings of the image area for each application for graphic encoding data. When it is determined that the length of the display range cannot accommodate the preselected number of longitudinally encoded data, the maximum number of longitudinally encoded data that can be accommodated in the display range is determined as the number of longitudinally encoded image regions used for graphic encoded data for each application.

It should be understood that for a single graphic coded data, the size (display size or presentation size) of a symbol or 1/4 symbol (1/4 symbol is the basic data unit of graphic coded data, representing 1 or 0) is higher. If the value is small, the information (system information, title information and data information) that can be accommodated in a single graphic coded data is more.

The encoding ratio of each application for the image region of the graphics encoded data is determined based on the horizontal encoding amount and the vertical encoding amount. For example, if the number of horizontal encodings in a specific application is 62 and the number of vertical encodings is 100, the encoding ratio of the image area used for the graphics encoding data in the specific application is 0.62. In a preferred embodiment of the present application, the coding ratio is 0.618.

In step 102, when a specific application among the plurality of applications wishes to transmit information content, unencrypted original graphic encoding data that conforms to the encoding ratio is generated based on the information content to be transmitted. When a specific application among the plurality of applications wishes to transmit information, the specific application generates original graphic encoding data conforming to the encoding scale, and transmits information based on the original graphic encoding data conforming to the encoding scale. The original graphic encoding data conforming to the encoding scale may include three main scales, a system information area and a backup information area. Three of the main scales are used to locate the graphics encoded data for the scanner or decoder. The main calibration is responsible for image recognition and localization of the image-encoded data.

The system information region includes two symbols, where each symbol may indicate 4 bits or bits of binary data. The system information area uses 6 bits to represent the size level of the graphics coded data, ie, levels 0-63, and uses 2 bits to represent the error correction level of the graphics coded data, ie, levels 0-3. The system information area is located in the upper left corner of the graphic encoded data. The content settings of the backup information area and the system information area are exactly the same, and the contents of the system information area and the backup information area of the same graphic coded data are the same. The backup information area is located in the lower right corner of the graphic encoded data. It should be appreciated that the backup information area and the system information area may be located at any reasonable location in the graphics encoded data.

In addition, the original graphic encoding data conforming to the encoding scale may further include subscales, and the number of subscales may be zero or at least one. The sub-scaling is used for auxiliary positioning, that is, auxiliary positioning is performed on the encoded data in the graphic encoded data. For example, subscaling is responsible for symbol positioning in graphics encoded data. The greater the number of subscales required, the more information conveyed by the graphics coded data.

The original graphic encoding data conforming to the encoding ratio includes: configuration information, title information and data information. The configuration information may include the following contents: version number, title information flag bit, block flag bit, data information configuration, user-defined configuration data, title information configuration, and block configuration information. The version number occupies 2 bits: the version number is from 00 to 11 (0-3), which can represent a total of 4 versions. The header information flag bit occupies 1 bit: it identifies whether there is header information: 1->with header; 0->without header. The block flag bit occupies 1 bit: it is used to identify whether the current image encoding data is a block: 1-> the current image encoding data is a child code; 0-> the current image encoding data is a mother code. User-defined configuration data occupies 2 bits: from 00 to 11 (0-3), a total of 4 customized configuration data versions can be represented.

The data information configuration occupies 16 bits and includes: encryption method, zip flag bit, data type and data length. The encryption method occupies 2 bits: 00->unencrypted; 01->default AESCTR encryption; 10->system reserved; 11->user-defined encryption. The Zip flag occupies 1 bit: 1->the content is the zip-encrypted encoding; 0->the content is the normal encoding. The data type occupies 1 bit: 0->UTF-8 text; 1->binary. The data length occupies 12 bits: used to indicate the byte information included in the data information (maximum 4095 bytes).

The header information configuration occupies 9 bits and includes: zip flag bit and data length. The zip flag occupies 1 bit: 1->the title is the zip-encrypted code; 0->the title is the normal code. The data length occupies 8 bits: used to indicate the byte information (maximum 255 bytes) included in the header information.

The block configuration information occupies 70 bits and includes: the total number of blocks, the block number, and the hash value of the parent block. The total number of blocks (total number of subcodes) occupies 3 bits: from 000 to 111 (0-7), a total of 8 blocks can be represented, 000->1 block in total; 001->2 blocks in total; ……. The block number (subcode sequence number) occupies 3 bits: from 000 to 111 (0-7), representing the index of the current block number, 000->1st block; 001->2nd block;  …. The hash value of the parent block occupies 64 bits: it is used to identify whether multiple child blocks are child blocks of the same parent block and whether the parent block combined with the child blocks is correct. The 64-bit hash value can be obtained by selectively intercepting the 128-bit hash value.

The title information is used to indicate the title of the picture coded data as the mother code or the picture coded data as the child code. The data information is the data content desired to be conveyed/expressed as the image coded data of the mother code or the image coded data as the child code.

In step 103, structure analysis is performed on the information content to be transmitted, and the information content to be transmitted is divided into multiple information subsets according to the result of the structure analysis. The present application performs structure analysis on data information, and divides the data information into multiple information subsets according to the results of the structure analysis. The structure parsing includes semantic structure parsing and delimiter structure parsing. When the structure parsing is semantic structure parsing, structure parsing is performed on the information content to be delivered, and dividing the information content to be delivered into multiple information subsets according to the result of the structural parsing includes: analyzing the information content to be delivered Semantic structure analysis is performed on the information content of the device to generate a plurality of semantic structure subunits; the information content to be transmitted is divided into a plurality of information subsets according to the plurality of semantic structure subunits. When the structure parsing is delimiter structure parsing, structure parsing is performed on the information content to be transmitted, and dividing the information content to be transmitted into multiple information subsets according to the result of the structure parsing includes: analyzing the information content to be transmitted The transmitted information content is subjected to delimiter structure analysis to generate a plurality of delimiter structure subunits; the information content to be transmitted is divided into a plurality of information subsets according to the plurality of delimiter structure subunits.

In step 104, the data information area of the unencrypted original graphic coded data is divided into a plurality of sub-areas according to each information subset, and an encryption unit and an encryption method are determined for each sub-area. According to each information subset, the data information area of the unencrypted original graphic coded data is divided into a plurality of sub-areas, and the encryption unit and the encryption method are determined for each sub-area. In addition, the encryption method of each encryption unit is the same or different. The encryption method is pre-determined by the provider (for example, the encoding developer, the encoding alliance, etc.) that provides the graphics encoded data, or the encryption method is determined according to the needs of the user who uses the graphics encoded data. The encryption unit is a single coding unit, multiple coding units or data blocks. In this application, a single coding unit may be a symbol as shown in FIG. 9 . A data block may be a set of data selected from data information according to semantics or delimiters.

In step 105, for each sub-area, the encryption unit is taken as the minimum encryption object and each encryption unit is encrypted according to the encryption method, so as to generate encrypted graphics encoding data, and perform security based on the encrypted graphics encoding data. information transfer. For each sub-region, the encryption unit is taken as the minimum encryption object, and each encryption unit is encrypted according to the encryption method, so as to generate the encrypted graphic encoding data. That is, the original unencrypted graphic coded data is divided into a plurality of objects and subjected to the same or different encryption processes. Alternatively, the present application also determines an encryption unit and an encryption method for the unencrypted original graphics code data; and the encryption unit is used as the minimum encryption object and each encryption unit is encrypted according to the encryption method, to generate an encrypted graphics code. data. That is, the encryption processing is performed using the unencrypted original graphics coded data as the entire processing object.

Before determining the encoding ratio of the image area used by each application for the graphic encoded data based on the display range for displaying the graphic encoded data and the maximum amount of information of a single graphic encoded data among the multiple applications, the method further includes:

Obtain application description information associated with the user equipment, and determine, based on the application description information, a plurality of applications that wish to perform information transmission through the graphic coded data. The application description information includes multiple description items, and the format of each description item is <application name, application type, associated device type, encoded data flag>. For example, <Alipay, Payment Type, iOS, Yes> and <Alipay, Payment Type, Andriod, Yes> are used to indicate that the Alipay application is a payment type application, and graphics coding needs to be used in either the iOS operating system or the Android operating system data. Generally, description items may be set by the provider of the application, the provider of the operating system, the application store, and the user equipment itself, and the set multiple description items are used to form application description information associated with the user equipment. It can be seen from this that, by analyzing each description item in the application description information, it is possible to determine each application that wishes to transmit information through the graphic coded data.

According to the information transmission requirements of each application in the multiple applications, determine the maximum amount of information required by each application to transmit information through a single graphic coded data. The present application determines the information transmission requirements of each application according to the data integrity required for each application to transmit information through graphic coded data. The data integrity is the maximum possible amount of data required to ensure that the information is complete and not divided when each application transmits information through the graphic coded data, that is, the peak data amount. Among them, the information transfer requirements include the peak data volume involved in order to meet the data integrity. The present application determines, according to the peak data amount, the maximum amount of information required for each application to transmit information through a single graphic coded data. For example, the present application may take the peak data amount as the maximum information amount, take 1.2 times the peak data amount as the maximum information amount, and take 0.9 times the peak data amount as the maximum information amount.

The graphical interface for providing the graphically encoded data of each application is parsed to determine a display range that each application can use to display the graphically encoded data. The graphical interface is an interface for each application to transmit information using graphically encoded data. For example, Alipay's graphical interface for providing graphically encoded data includes: a two-dimensional code representing payment, a barcode representing payment, bank card information, membership level, prompt information, and the like. The display range is the range used to display the graphic coded data in the graphic interface, that is, the area where the graphic interface represents the two-dimensional code for payment. In the present application, the shape of the display area is a rectangle and the shape of the image area is a rectangle. That is, the shape of the display area is a square or a rectangle and the shape of the image area is a square or a rectangle. As shown in FIG. 3 , the shape of the display area is a rectangle, and the shape of the image area is a rectangle.

The present application also includes compressing the title information and/or data information in the original graphics encoding data to generate compressed graphics encoding data, the compressed graphics encoding data having an area smaller than or equal to the original graphics encoding data area. For example, the title information and/or data information in the original graphic encoding data is compressed in a zip manner to generate compressed graphic encoding data, and the area of the zip-compressed graphic encoding data is smaller than or equal to the original graphic encoding data area. This is because the compressed header information and/or data information may result in a shortened length or width of the graphics encoded data. The present application also includes information transfer based on the compressed graphics encoded data.

The coding units of the generated original graphic coding data are circle, rectangle and ellipse, as shown in FIG. 3 .

The present application causes a provider of graphically encoded data to receive an information processing request for a collaborative service, wherein the information processing request includes information content associated with the collaborative service and a structure description file for the collaborative service. A collaborative service is a service completed by multiple collaborative devices. Wherein, when the provider of the graphics encoding data determines that the generated graphics encoding data involves a collaborative service, an information processing request for the collaborative service is generated. The information content associated with the collaborative service is task information required to complete the collaborative service. The structure description file of the coordinated service is used to indicate the logical structure of the coordinated service, and the coordinated service can be divided into a plurality of sub-services based on the structure description file. Each sub-service in the plurality of sub-services corresponds to a coordinated task involved in the corresponding coordinated device.

Parsing the structure description file of the coordinated service to determine the multiple coordinated devices involved in the coordinated service and the coordinated tasks involved in each coordinated device, specifically including: parsing the structure description file of the coordinated service to Determine multiple sub-services of the coordinated service; determine a coordinated device involved in each sub-service in the multiple sub-services; parse the service content of each sub-service to determine a coordinated task; and determine a coordinated task involved in each coordinated device.

Generate original graphics encoding data including data information according to the information content associated with the collaborative service, and divide the data information in the generated original graphics encoding data into a plurality of subsections based on the collaborative tasks involved in each collaborative device Data information. Wherein, generating the original graphic encoding data including the data information according to the information content associated with the collaborative service includes: taking the information content associated with the collaborative service as the data information, and generating the original graphic including the data information encoded data. Wherein, dividing the data information in the original graphics coding data into multiple sub-data information based on the collaborative tasks involved in each collaborative device includes: determining the collaborative data associated with the collaborative tasks involved in each collaborative device; The collaborative data of the device divides the data information in the original graphic coded data into a plurality of sub-data information.

An association relationship between the plurality of cooperating devices is determined, and a hierarchical relationship is determined for each of the plurality of sub-data information based on the association relationship. The association relationship among the plurality of cooperative devices includes: a peer relationship, a superior relationship, a subordinate relationship, and a conditional relationship. Determining the hierarchical relationship for each sub-data information in the plurality of sub-data information based on the association relationship includes: when the association relationship is a sibling relationship or a conditional relationship, determining the hierarchical relationship for each sub-data information in the plurality of sub-data information as the same Hierarchical relationship; when the association relationship is a superior relationship or a subordinate relationship, the hierarchical relationship of each sub-data information in the plurality of sub-data information is determined as a different hierarchical relationship.

The generated original graphic encoding data is divided into a plurality of hierarchical graphic encoding data based on the hierarchical relationship of each sub-data information, and each hierarchical graphic encoding data is allocated to a corresponding cooperative device for information processing. The present application sets title information for each layered graphics encoding data, wherein the title information of each layered graphics encoding data is the same, different or related to the title information of the generated original graphics encoding data.

After each cooperating device performs information processing according to the corresponding hierarchical graphic encoding data, the results generated by each cooperating device through the information processing are combined to generate a response message, and the response message is sent to the provider of the graphics encoding data .

Alternatively, the present application receives a code division request for dividing the generated original graphic encoding data. The code division request is parsed to determine the number N of subcodes. The data information included in the generated original graphic encoding data is divided into N pieces of sub-data information. The generated original graphic coded data is divided into N sub-coded data according to the N pieces of sub-data information. Each of the N sub-coded data is sent to a corresponding user equipment, wherein each user equipment is capable of receiving at least one sub-coded data. The present application sets header information for each sub-encoded data, wherein the header information of each sub-encoded data is the same, different or related to the header information of the generated original graphic encoded data. A code division request for division for specific sub-encoded data is received, and the specific sub-encoded data is divided into a predetermined number of grandchild encoded data according to the code division request.

It should be understood that the data information in the original graphic coded data can be divided into N pieces of sub-information equally, and each of the N pieces of sub-coded data is formed by using each piece of the N pieces of sub-information. The N pieces of information have an order, and the order depends on the content of the data information, that is, after the N pieces of information are combined according to the serial numbers, data information can be formed without modifying the order. In addition, the data information in the original graphic encoded data can be divided into N pieces of information unevenly. Alternatively, the data information in the original graphic encoding data can be divided into N pieces of information according to the semantic structure, the delimiter structure, and the like.

As can be seen from the above description, a plurality of hierarchical graphic encoding data may be located at different levels, wherein each graphic encoding data may be divided into a predetermined number of graphic encoding data serving as subcodes at most. The hierarchical graphics encoding data obtained by dividing the original graphics encoding data is located at the next level of the original graphics encoding data. The new hierarchical graphic coding data obtained by dividing the specific hierarchical graphic coding data is located at the next level of the specific hierarchical graphic coding data. For another example, when the number of sub-codes N is 8, the original graphic coded data can be divided into 8 sub-coded data at most, and each sub-coded data can be divided into 8 grand-coded data at most, and so on.

In this application, the original graphics encoding data conforming to the encoding ratio, the original graphics encoding data, the original graphics encoding data, the generated original graphics encoding data conforming to the encoding ratio, the generated original graphics encoding data, the generated can refer to the same content.

The generated original graphic coded data includes: main scaling, system information and backup information, wherein the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information . The generated raw graphics encoded data also includes subscales.

As mentioned above, the present application may set in the configuration information of the sub-coded data: the number of the sub-coded data, the serial number of the sub-coded data, and the hash value of the original graphic-coded data. In the present application, the configuration information of the hierarchical graphic coding data includes: the quantity of the graphic coding data of the same level, the serial number of the graphic coding data of the same level, and the hash value of the graphic coding data of the upper level.

The header information is the outline information of the data information included in the generated graphic encoding data conforming to the encoding scale. The data information of the sub-coded data includes the code error correction level of the original graphic encoded data and the partial data information of the original graphic encoded data. Each of the plurality of hierarchical graphic coding data includes: an error correction level of the upper-level graphic coding data and partial data information of the upper-level coding data. The configuration information further includes: configuration information version number, header information flag bit, block flag bit and self-defined configuration data. The configuration information further includes: the total number of code blocks, the serial number of the current code block, and the hash value of the upper-level code block. The header information also includes a compression flag.

The present application also includes generating encrypted graphics coded data in the following manner, generating a hash string for the title information of the unencrypted original graphics coded data, and using the hash string to interpret the original graphics coded data Byte-by-byte XOR operation is performed on the data information, and the XOR-operated graphics encoding data is encrypted to generate encrypted graphics encoding data. After receiving the encrypted graphics encoding data, decrypt the encrypted graphics encoding data to generate the graphics encoding data to be processed, generate a hash string for the title information of the graphics encoding data to be processed, and use The hash string performs byte-by-byte XOR operation on the data information of the to-be-processed graphics encoding data to obtain unencrypted original graphics encoding data.

FIG. 3 is a schematic diagram of graphics encoded data 300 according to a preferred embodiment of the present invention. As shown in FIG. 3 , the graphic encoding data 310 and 320 of the present application may also be referred to as month codes. The symbols of the month code 310 are circular, and the symbols of the month code 320 are square or square. In the graphics coded data 310, the main scales 311-1, 311-2 and 311-3 are used to determine the position of the graphics coded data for the scanner or decoder. The sub-scaling 312 is used to perform auxiliary positioning, that is, to perform auxiliary positioning for the encoded data in the graphic encoded data. The encoded data 313 is used to represent system information, backup information, configuration information, data information, and the like. In the graphics coded data 320, the main scales 321-1, 321-2 and 321-3 are used to determine the position of the graphics coded data for the scanner or decoder. The sub-scaling 322 is used for auxiliary positioning, that is, auxiliary positioning is performed on the encoded data in the graphic encoded data. The encoded data 323 is used to represent system information, backup information, configuration information, data information, and the like.

FIG. 4 is a schematic diagram of the overall structure of graphic encoded data according to a preferred embodiment of the present invention. As shown in FIG. 4, the month code 400 may include three main calibration, system information area and backup information area. Three of the main scales are used to locate the graphics encoded data for the scanner or decoder. The system information region includes two symbols (using circular symbols as an example), where each symbol may indicate 4 bits or bits of binary data. The system information area uses 6 bits to represent the size level of the graphics coded data, ie, levels 0-63, and uses 2 bits to represent the error correction level of the graphics coded data, ie, levels 0-3. The system information area is located in the upper left corner of the graphic encoded data. The content settings of the backup information area and the system information area are exactly the same, and the contents of the system information area and the backup information area of the same graphic coded data are the same. The backup information area is located in the lower right corner of the graphic encoded data. It should be appreciated that the backup information area and the system information area may be located at any reasonable location in the graphics encoded data.

FIG. 5 is a schematic diagram of the overall structure of graphic encoded data according to another preferred embodiment of the present invention. The month code 500 includes: configuration information, title information and data information. The configuration information may include the following contents: version number, title information flag bit, block flag bit, data information configuration, user-defined configuration data, title information configuration, and block configuration information. The title information is used to indicate the title of the month code as the mother code or the month code as the child code. The data information is the data content that the month code as the mother code or the month code as the child code wishes to convey/express.

FIG. 6 is a schematic diagram of dividing 600 of graphics encoded data according to a preferred embodiment of the present invention. As shown in FIG. 6 , the present application receives a code division request for dividing the generated month code 601 . The code division request is parsed to determine the number of subcodes 8. The data information included in the generated month code 601 is divided into 8 sub-data information. The generated month code 601 is divided into 8 sub-codes 611-618 according to the 8 sub-data information. Each of the 8 subcodes 611-618 is sent to a corresponding user equipment, wherein each user equipment is capable of receiving at least one subcode. The present application sets header information for each subcode, wherein the header information of each subcode is the same, different or related to the header information of the generated month code 601 . A code division request for division for a specific subcode is received, and the specific subcode is divided into a predetermined number of grand-coded data according to the code division request.

The month code 601 can be divided into at most 8 subcodes 611-618, and each subcode can be divided into at most 8 grandchild codes, and so on. It should be understood that the data information in the month code 601 can be equally divided into 8 sub-information, and each of the 8 sub-codes 611-618 is formed using each of the 8 sub-information. The 8 pieces of sub-information have an order, and the order depends on the content of the data information, that is, after the 8 pieces of sub-information are combined according to the serial numbers, the data information can be formed without modifying the order. In addition, the data information in the month code 601 may be divided into 8 pieces of sub-information unevenly. Alternatively, the data information in the month code 601 may be divided into 8 sub-information according to the semantic structure, the separator structure, and the like.

FIG. 7 is a schematic diagram of an overall structure of a subcode according to a preferred embodiment of the present invention. Subcode 700 may include three main scales 701 , system information area 702 and backup information area 706 . Three of the main scales 701 are used to determine the position of the subcode 700 for the scanner or decoder. System information region 702 includes two symbols, where each symbol may indicate 4 bits or bits of binary data. The system information area 702 uses 6 bits to represent the size level of the subcode 700, that is, levels 0-63, and uses 2 bits to represent the error correction level of the subcode 700, that is, levels 0-3. The system information area 702 is located in the upper left corner of the subcode 700 . The content settings of the backup information area 706 and the system information area 702 are exactly the same, and the contents in the system information area 702 and the backup information area 706 of the same subcode 700 are the same. The backup information area 706 is located in the lower right corner of the subcode 700 . It should be appreciated that the backup information area 706 and the system information area 702 may be located at any reasonable location in the subcode 700.

The configuration information 703 of the subcode 700 may include the following content: The total number of subcodes occupies 3 bits: from 000 to 111 (0-7), which can represent a total of 8 subcodes, 000-> a total of 1 subcode; 001-> a total of 2 subcode;  …. The subcode number occupies 3 bits: from 000 to 111 (0-7), representing the index of the current subcode number, 000->1st subcode; 001->2nd subcode;  …. The mother code hash value occupies 64 bits: it is used to identify whether multiple subcodes are subcodes of the same mother code and whether the combined mother code of the subcodes is correct. The 64-bit hash value can be obtained by selectively intercepting the 128-bit hash value.

Regarding the header information 704 of the subcodes, the header information 704 of each subcode may be different and can be customized. The data information 705 includes the code error correction level of the month code 700 and the partial data information of the month code 700 .

Figure 8 is a schematic diagram of a main scale and a sub scale in accordance with a preferred embodiment of the present invention. As shown in FIG. 8, in block 800, primary calibrations 801 and 802 are used to determine the location of the month code for the scanner or decoder. Sub-scales 802 and 804 are used for auxiliary positioning, that is, auxiliary positioning is performed on the encoded data in the month code. The main scale 801 adopts a circular pattern, and the width ratio between black and white pixels is 1:1:5:1:1. The main scale 803 adopts a square pattern, and the width ratio between black and white pixels is 1:1:5:1:1. The subscale 802 adopts a circular pattern and the width ratio between black and white pixels is 1:1:2:1:1. The subscale 802 is in a square pattern, and the width ratio between black and white pixels is 1:1:2:1:1.

FIG. 9 is a schematic diagram of a symbol structure 900 according to a preferred embodiment of the present invention. As shown in FIG. 9 , according to the clockwise direction of the four parts of the circular symbol of the month code, starting from the upper left corner (second quadrant), the numbers are 1, 2, 3 and 4. As shown in FIG. 9 , different patterns represent different values of 0000, 0001, 0010, 0011, 0100, 0101, 0110, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110, and 1111, respectively. It should be understood that the present application takes a circular symbol as an example for description, and the symbol can be any reasonable shape such as a square, a rectangle, and an ellipse. In addition, the feature of the graphic coded data (monthly code) of the present application is to perform various processing such as encoding, decoding, encryption, grouping, etc. in units of symbols, while the graphic coded data in the prior art is a single minimum unit, such as Encoding or decoding is performed in units of 1, 2, 3 or 4 in FIG. 9 . The advantage of encoding, decoding, encrypting, grouping and other processing in units of symbols is that four bits can be processed at one time, thereby improving the efficiency of various processing such as encoding, decoding, encryption, and grouping.

FIG. 10 is a schematic diagram of secure information transfer 1000 through graphically encoded data according to a preferred embodiment of the present invention. As shown in Figure 10, the security information can be better transmitted through the monthly code. For example, in the case of no encryption, the content of the information transmitted by the user can be prompted through the title information "month code, different QR code". In the case of encryption, the user is prompted to enter the password through the title message "Come on, review my first text message, you know the password". When the password entered by the user is correct, the month code can be decrypted to obtain the information transmitted by the month code. When the password entered by the user is incorrect, the monthly code cannot be decrypted, so that the information transmitted by the monthly code can be protected safely.

According to the preferred embodiment of the present application, the monthly code has the following characteristics: the monthly code is rectangular in shape, with a width-to-height ratio of about 0.618, which can fully utilize the screen space of the mobile phone; the monthly code is divided into three parts as a whole: system information, title information, data information ;The monthly code data information supports two formats: text and binary; the title information and data information of the monthly code support UTF-8 text, support emoji expressions, and cover a more complete amount of information; the monthly code uses zip to compress the title information and data information, Reduce the area of the monthly code; the data information of the monthly code can be encrypted, the default encryption algorithm is AES CTR, and other encryption formats can be customized; the user can add custom configuration information in the monthly code; the monthly code can be split into a maximum of 8 A sub-code can also be further disassembled into 8 sub-codes, which can be split infinitely. Only when all the sub-codes are collected can the mother code be assembled; and the monthly code supports tamper-proof, preventing others from tampering with the information in the monthly code. The main calibration of the month code is responsible for image recognition and month code positioning. The subscale of the month code is responsible for the positioning of symbols in the month code.

The data storage levels are shown in Table 1:

Table 1

The error correction level of the monthly code is shown in Table 2:

Table 2

The data storage range of the month code after error correction is shown in Table 3:

table 3

The calibration and arrangement rules of month codes are shown in Table 4:

The configuration information structure of the April code in the table is:

in

The version number occupies 2 bits: the version number is from 00 to 11 (0-3), which can represent a total of 4 versions;

Whether there is title information occupies 1 bit: identifies whether there is title information: 1->with title; 0->without title;

Whether it is a block occupies 1 bit: it is used to identify whether the current image encoding data is a block: 1-> the current image encoding data is a child code; 0-> the current image encoding data is a mother code;

User-defined configuration data occupies 2 bits: from 00 to 11 (0-3), a total of 4 customized configuration data versions can be represented;

The data information configuration occupies 16 bits and includes: encryption method, zip flag bit, data type and data length;

The header information configuration occupies 9 bits and includes: zip flag bit and data length;

The block configuration information occupies 70 bits and includes: the total number of blocks, the block number, and the hash value of the parent block;

The title information is used to indicate the title of the picture-encoded data as the mother code or the picture-encoded data as the child code; and

The data information is the data content desired to be conveyed/expressed as the image coded data of the mother code or the image coded data as the child code.

Among them, the title information configuration, block configuration information and title information are optional.

The block information structure is:

Total number of blocks 3 digits block number 3 digits The hash value of the mother block is 64 bits

in

The total number of blocks (total number of subcodes) occupies 3 bits: from 000 to 111 (0-7), a total of 8 blocks can be represented, 000->1 block in total; 001->2 blocks in total;...;

The block number (subcode sequence number) occupies 3 bits: from 000 to 111 (0-7), representing the index of the current block number, 000->1st block; 001->2nd block; ...; and

The hash value of the parent block occupies 64 bits: it is used to identify whether multiple child blocks are child blocks of the same parent block and whether the parent block combined with the child blocks is correct. The 64-bit hash value can be obtained by selectively intercepting the 128-bit hash value.

The title information structure is:

Whether to zip 1 bit Data length 8 bits (maximum 255 bytes)

in

Whether zip occupies 1 bit: 1->the header is the zip-encrypted encoding; 0->the header is the normal encoding; and

The data length occupies 8 bits: used to indicate the byte information (maximum 255 bytes) included in the header information.

The data information structure is:

Encryption method 2 digits Whether to zip 1 bit data type 1 bit Data length 12 bits (maximum length 4095 bytes)

in

The encryption method occupies 2 bits: 00->unencrypted; 01->default AESCTR encryption; 10->system reserved; 11->user-defined encryption;

Whether zip occupies 1 bit: 1->the content is zip-encrypted encoding; 0->the content is normal encoding;

The data type occupies 1 bit: 0->UTF-8 text; 1->binary; and

The data length occupies 12 bits: used to indicate the byte information included in the data information (maximum 4095 bytes).

The fixed mask of the month code is shown in Table 5:

table 5

Graphically encoded data (eg, month codes) of the present application have a tamper-resistant mechanism.

Tamper-proof purpose:

The month code contains title information and data information. After the month code is generated, the two data must match each other. It is necessary to prevent others from modifying one of the data to forge a new month code.

Tamper Resistant Conditions:

The month code that only contains data information does not need to be tamper-proof, that is, the month code must contain title information and data information. The data information of the month code must be encrypted

Tamper-proof way:

Generate month code: Use the header information to generate a 128-bit hash string. Before encrypting the data information, use this hash string to perform XOR operation on the entire data information byte by byte, and then encrypt the data.

Interpret the month code: After decrypting the data information, use the 128-bit hash string generated by the header information to perform the XOR operation on the entire data information byte by byte to restore the data information.

Examples of applications of the graphically encoded data (eg, month code) of the present application include:

Use QR codes to disseminate encrypted information;

Use pictures to encrypt and transmit information between different software;

Use subcodes for group authentication, pipeline authentication, quality authentication; and

secure payment, etc.

FIG. 11 is a schematic structural diagram of a system 1100 for information transmission based on graphic coded data according to a preferred embodiment of the present invention. As shown in FIG. 11 , the system 1100 includes: a ratio determination device 1101 , a generation device 1102 , an analysis device 1103 , a processing device 1104 , an encryption device 1105 , an initialization device 1106 , a compression device 1107 , a division device 1108 , and a setting device 1109 .

The scale determining means 1101 is configured to determine the coding scale of the image area used by each application for the graphic coded data based on the display range of each of the multiple applications for displaying the graphic coded data and the maximum information amount of a single graphic coded data. Wherein, determining the encoding ratio of the image area for each application for displaying the encoded graphic data based on the display range for displaying the encoded graphic data and the maximum amount of information includes: determining the length and width of the display range for displaying the encoded graphic data . At present, the shape of a mobile terminal (for example, a mobile phone) is mostly rectangular or approximately rectangular. For this reason, the display plane of the display screen of the mobile terminal is also usually rectangular or approximately rectangular, that is, both the mobile terminal and the display screen have a width and a length. Generally, the length is greater than the width, and in this application, the length and width will not change with the horizontal and vertical positions of the mobile terminal. The length and width of the display range determined in the present application are the largest display area or range that can be used to display graphic encoded data.

According to the width of the display range, each application is used to determine the number of horizontal encoding of the image area of the image encoding data. Generally, the width occupied by the horizontal encoding of the image area used for the graphic encoding data is smaller than the width of the display range. As shown in FIG. 3 , the width of the horizontal encoding is, for example, the distance between the two main scales 311-1 and 311-2 (including itself) located in the upper part of the image encoding data, and the width of the vertical encoding is, for example, the width of the image encoding The distance between the two main scales 311-2 and 311-3 (including itself) of the upper part of the data. It should be understood that, when the graphic coded data contains less data information, the width of the graphic coded data will not occupy the full width of the display range. That is, the width of the display range can be considered as the maximum width of the image area for each application for the graphics encoded data, and is determined based on the maximum width of the image area and the size of a symbol (or 1/4 symbol) Maximum number of horizontal encodings.

According to the length of the display range and the maximum amount of information, each application is used to determine the number of vertical encoding of the image area of the image encoded data. Wherein, determining the vertical encoding quantity of each application for the image area of the graphic coded data according to the length of the display range and the maximum information amount includes: determining a preselected vertical encoding quantity according to the maximum information amount and the horizontal encoding quantity. The maximum amount of information involved in the data information of the graphics encoded data determines the area of the graphics encoded data, for example, the area of the graphics encoded data can be determined based on the maximum amount of information and the size of a symbol (or 1/4 symbol). For example, in the case where the horizontally encoded number of image regions for graphics encoded data is determined, the vertically encoded number of image regions for graphics encoded data per application may be determined according to the length of the display range and the maximum amount of information. This is because the maximum information amount of a single graphic coded data can determine the number of symbols of this graphic coded data, and the number of vertical codes can be determined according to the number of symbols and the number of horizontal codes.

When it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings of the image area for each application for graphic encoding data. When it is determined that the length of the display range cannot accommodate the preselected number of longitudinally encoded data, the maximum number of longitudinally encoded data that can be accommodated in the display range is determined as the number of longitudinally encoded image regions used for graphic encoded data for each application.

It should be understood that for a single graphic coded data, the size (display size or presentation size) of a symbol or 1/4 symbol (1/4 symbol is the basic data unit of graphic coded data, representing 1 or 0) is higher. If the value is small, the information (system information, title information and data information) that can be accommodated in a single graphic coded data is more.

The encoding ratio of each application for the image region of the graphics encoded data is determined based on the horizontal encoding amount and the vertical encoding amount. For example, if the number of horizontal encodings in a specific application is 62 and the number of vertical encodings is 100, the encoding ratio of the image area used for the graphics encoding data in the specific application is 0.62. In a preferred embodiment of the present application, the coding ratio is 0.618.

The generating device 1102 is configured to generate, based on the information content to be transmitted, unencrypted original graphic encoded data that conforms to the encoding ratio when a specific application among the multiple applications wishes to transmit the information content. When a specific application among the plurality of applications wishes to transmit information, the specific application generates original graphic encoding data conforming to the encoding scale, and transmits information based on the original graphic encoding data conforming to the encoding scale. The original graphic encoding data conforming to the encoding scale may include three main scales, a system information area and a backup information area. Three of the main scales are used to locate the graphics encoded data for the scanner or decoder. The main calibration is responsible for image recognition and localization of the image-encoded data.

The system information region includes two symbols, where each symbol may indicate 4 bits or bits of binary data. The system information area uses 6 bits to represent the size level of the graphics coded data, ie, levels 0-63, and uses 2 bits to represent the error correction level of the graphics coded data, ie, levels 0-3. The system information area is located in the upper left corner of the graphic encoded data. The content settings of the backup information area and the system information area are exactly the same, and the contents of the system information area and the backup information area of the same graphic coded data are the same. The backup information area is located in the lower right corner of the graphic encoded data. It should be appreciated that the backup information area and the system information area may be located at any reasonable location in the graphics encoded data.

In addition, the original graphic encoding data conforming to the encoding scale may further include subscales, and the number of subscales may be zero or at least one. The sub-scaling is used for auxiliary positioning, that is, auxiliary positioning is performed on the encoded data in the graphic encoded data. For example, subscaling is responsible for symbol positioning in graphics encoded data. The greater the number of subscales required, the more information conveyed by the graphics coded data.

The original graphic encoding data conforming to the encoding ratio includes: configuration information, title information and data information. The configuration information may include the following contents: version number, title information flag bit, block flag bit, data information configuration, user-defined configuration data, title information configuration, and block configuration information. The version number occupies 2 bits: the version number is from 00 to 11 (0-3), which can represent a total of 4 versions. The header information flag bit occupies 1 bit: it identifies whether there is header information: 1->with header; 0->without header. The block flag bit occupies 1 bit: it is used to identify whether the current image encoding data is a block: 1-> the current image encoding data is a child code; 0-> the current image encoding data is a mother code. User-defined configuration data occupies 2 bits: from 00 to 11 (0-3), a total of 4 customized configuration data versions can be represented.

The data information configuration occupies 16 bits and includes: encryption method, zip flag bit, data type and data length. The encryption method occupies 2 bits: 00->unencrypted; 01->default AESCTR encryption; 10->system reserved; 11->user-defined encryption. The Zip flag occupies 1 bit: 1->the content is the zip-encrypted encoding; 0->the content is the normal encoding. The data type occupies 1 bit: 0->UTF-8 text; 1->binary. The data length occupies 12 bits: used to indicate the byte information included in the data information (maximum 4095 bytes).

The header information configuration occupies 9 bits and includes: zip flag bit and data length. The zip flag occupies 1 bit: 1->the title is the zip-encrypted code; 0->the title is the normal code. The data length occupies 8 bits: used to indicate the byte information (maximum 255 bytes) included in the header information.

The block configuration information occupies 70 bits and includes: the total number of blocks, the block number, and the hash value of the parent block. The total number of blocks (total number of subcodes) occupies 3 bits: from 000 to 111 (0-7), a total of 8 blocks can be represented, 000->1 block in total; 001->2 blocks in total; ……. The block number (subcode sequence number) occupies 3 bits: from 000 to 111 (0-7), representing the index of the current block number, 000->1st block; 001->2nd block;  …. The hash value of the parent block occupies 64 bits: it is used to identify whether multiple child blocks are child blocks of the same parent block and whether the parent block combined with the child blocks is correct. The 64-bit hash value can be obtained by selectively intercepting the 128-bit hash value.

The title information is used to indicate the title of the picture coded data as the mother code or the picture coded data as the child code. The data information is the data content desired to be conveyed/expressed as the image coded data of the mother code or the image coded data as the child code.

The parsing device 1103 is configured to perform structure analysis on the information content to be transmitted, and divide the information content to be transmitted into a plurality of information subsets according to the result of the structure analysis. The present application performs structure analysis on data information, and divides the data information into multiple information subsets according to the results of the structure analysis. The structure parsing includes semantic structure parsing and delimiter structure parsing. When the structure parsing is semantic structure parsing, structure parsing is performed on the information content to be delivered, and dividing the information content to be delivered into multiple information subsets according to the result of the structural parsing includes: analyzing the information content to be delivered Semantic structure analysis is performed on the information content of the device to generate a plurality of semantic structure subunits; the information content to be transmitted is divided into a plurality of information subsets according to the plurality of semantic structure subunits. When the structure parsing is delimiter structure parsing, structure parsing is performed on the information content to be transmitted, and dividing the information content to be transmitted into multiple information subsets according to the result of the structure parsing includes: analyzing the information content to be transmitted The transmitted information content is subjected to delimiter structure analysis to generate a plurality of delimiter structure subunits; the information content to be transmitted is divided into a plurality of information subsets according to the plurality of delimiter structure subunits.

The processing device 1104 is configured to divide the data information area of the unencrypted original graphic coded data into a plurality of sub-areas according to each information subset, and determine an encryption unit and an encryption method for each sub-area. According to each information subset, the data information area of the unencrypted original graphic coded data is divided into a plurality of sub-areas, and the encryption unit and the encryption method are determined for each sub-area. In addition, the encryption method of each encryption unit is the same or different. The encryption method is pre-determined by the provider (for example, the encoding developer, the encoding alliance, etc.) that provides the graphics encoded data, or the encryption method is determined according to the needs of the user who uses the graphics encoded data. The encryption unit is a single coding unit, multiple coding units or data blocks. In this application, a single coding unit may be a symbol as shown in FIG. 9 . A data block may be a set of data selected from data information according to semantics or delimiters.

The encryption device 1105 is configured to, for each sub-area, take the encryption unit as the minimum encryption object and encrypt each encryption unit according to the encryption method, so as to generate encrypted graphic encoded data, and based on the encrypted graphic encoded data for secure information transfer. For each sub-region, the encryption unit is taken as the minimum encryption object, and each encryption unit is encrypted according to the encryption method, so as to generate the encrypted graphic encoding data. That is, the original unencrypted graphic coded data is divided into a plurality of objects and subjected to the same or different encryption processes. Alternatively, the present application also determines an encryption unit and an encryption method for the unencrypted original graphics code data; and the encryption unit is used as the minimum encryption object and each encryption unit is encrypted according to the encryption method, to generate an encrypted graphics code. data. That is, the encryption processing is performed using the unencrypted original graphics coded data as the entire processing object.

The initialization means 1106 is configured to acquire application description information associated with the user equipment, and determine, based on the application description information, multiple applications that wish to perform information transmission through the graphic coded data. The application description information includes multiple description items, and the format of each description item is <application name, application type, associated device type, encoded data flag>. For example, <Alipay, Payment Type, iOS, Yes> and <Alipay, Payment Type, Andriod, Yes> are used to indicate that the Alipay application is a payment type application, and graphics coding needs to be used in either the iOS operating system or the Android operating system data. Generally, description items may be set by the provider of the application, the provider of the operating system, the application store, and the user equipment itself, and the set multiple description items are used to form application description information associated with the user equipment. It can be seen from this that, by analyzing each description item in the application description information, it is possible to determine each application that wishes to transmit information through the graphic coded data.

According to the information transmission requirements of each application in the multiple applications, determine the maximum amount of information required by each application to transmit information through a single graphic coded data. The present application determines the information transmission requirements of each application according to the data integrity required for each application to transmit information through graphic coded data. The data integrity is the maximum possible amount of data required to ensure that the information is complete and not divided when each application transmits information through the graphic coded data, that is, the peak data amount. Among them, the information transfer requirements include the peak data volume involved in order to meet the data integrity. The present application determines, according to the peak data amount, the maximum amount of information required for each application to transmit information through a single graphic coded data. For example, the present application may take the peak data amount as the maximum information amount, take 1.2 times the peak data amount as the maximum information amount, and take 0.9 times the peak data amount as the maximum information amount.

The graphical interface for providing the graphically encoded data of each application is parsed to determine a display range that each application can use to display the graphically encoded data. The graphical interface is an interface for each application to transmit information using graphically encoded data. For example, Alipay's graphical interface for providing graphically encoded data includes: a two-dimensional code representing payment, a barcode representing payment, bank card information, membership level, prompt information, and the like. The display range is the range used to display the graphic coded data in the graphic interface, that is, the area where the graphic interface represents the two-dimensional code for payment. In the present application, the shape of the display area is a rectangle and the shape of the image area is a rectangle. That is, the shape of the display area is a square or a rectangle and the shape of the image area is a square or a rectangle. As shown in FIG. 3 , the shape of the display area is a rectangle, and the shape of the image area is a rectangle.

Compression device 1107, configured to compress the title information and/or data information in the original graphic encoding data to generate compressed graphic encoding data, the area of the compressed graphic encoding data is smaller than or equal to the original graphic The area of the encoded data. For example, the title information and/or data information in the original graphic encoding data is compressed in a zip manner to generate compressed graphic encoding data, and the area of the zip-compressed graphic encoding data is smaller than or equal to the original graphic encoding data area. This is because the compressed header information and/or data information may result in a shortened length or width of the graphics encoded data. The present application also includes information transfer based on the compressed graphics encoded data.

The coding units of the generated original graphic coding data are circle, rectangle and ellipse, as shown in FIG. 3 .

The dividing means 1108 is configured to prompt the provider of the graphic encoding data to receive an information processing request for the collaborative service, wherein the information processing request includes the information content associated with the collaborative service and a structure description file of the collaborative service. A collaborative service is a service completed by multiple collaborative devices. Wherein, when the provider of the graphics encoding data determines that the generated graphics encoding data involves a collaborative service, an information processing request for the collaborative service is generated. The information content associated with the collaborative service is task information required to complete the collaborative service. The structure description file of the coordinated service is used to indicate the logical structure of the coordinated service, and the coordinated service can be divided into a plurality of sub-services based on the structure description file. Each sub-service in the plurality of sub-services corresponds to a coordinated task involved in the corresponding coordinated device.

Parsing the structure description file of the coordinated service to determine the multiple coordinated devices involved in the coordinated service and the coordinated tasks involved in each coordinated device, specifically including: parsing the structure description file of the coordinated service to Determine multiple sub-services of the coordinated service; determine a coordinated device involved in each sub-service in the multiple sub-services; parse the service content of each sub-service to determine a coordinated task; and determine a coordinated task involved in each coordinated device.

Generate original graphics encoding data including data information according to the information content associated with the collaborative service, and divide the data information in the generated original graphics encoding data into a plurality of subsections based on the collaborative tasks involved in each collaborative device Data information. Wherein, generating the original graphic encoding data including the data information according to the information content associated with the collaborative service includes: taking the information content associated with the collaborative service as the data information, and generating the original graphic including the data information encoded data. Wherein, dividing the data information in the original graphics coding data into multiple sub-data information based on the collaborative tasks involved in each collaborative device includes: determining the collaborative data associated with the collaborative tasks involved in each collaborative device; The collaborative data of the device divides the data information in the original graphic coded data into a plurality of sub-data information.

An association relationship between the plurality of cooperating devices is determined, and a hierarchical relationship is determined for each of the plurality of sub-data information based on the association relationship. The association relationship among the plurality of cooperative devices includes: a peer relationship, a superior relationship, a subordinate relationship, and a conditional relationship. Determining the hierarchical relationship for each sub-data information in the plurality of sub-data information based on the association relationship includes: when the association relationship is a sibling relationship or a conditional relationship, determining the hierarchical relationship for each sub-data information in the plurality of sub-data information as the same Hierarchical relationship; when the association relationship is a superior relationship or a subordinate relationship, the hierarchical relationship of each sub-data information in the plurality of sub-data information is determined as a different hierarchical relationship.

The generated original graphic encoding data is divided into a plurality of hierarchical graphic encoding data based on the hierarchical relationship of each sub-data information, and each hierarchical graphic encoding data is allocated to a corresponding cooperative device for information processing. The present application sets title information for each layered graphics encoding data, wherein the title information of each layered graphics encoding data is the same, different or related to the title information of the generated original graphics encoding data.

After each cooperating device performs information processing according to the corresponding hierarchical graphic encoding data, the results generated by each cooperating device through the information processing are combined to generate a response message, and the response message is sent to the provider of the graphics encoding data .

Alternatively, the dividing means 1108 is configured to receive a code division request for dividing the generated original graphic coded data. The code division request is parsed to determine the number N of subcodes. The data information included in the generated original graphic encoding data is divided into N pieces of sub-data information. The generated original graphic coded data is divided into N sub-coded data according to the N pieces of sub-data information. Each of the N sub-coded data is sent to a corresponding user equipment, wherein each user equipment is capable of receiving at least one sub-coded data. The present application sets header information for each sub-encoded data, wherein the header information of each sub-encoded data is the same, different or related to the header information of the generated original graphic encoded data. A code division request for division for specific sub-encoded data is received, and the specific sub-encoded data is divided into a predetermined number of grandchild encoded data according to the code division request.

It should be understood that the data information in the original graphic coded data can be divided into N pieces of sub-information equally, and each of the N pieces of sub-coded data is formed by using each piece of the N pieces of sub-information. The N pieces of information have an order, and the order depends on the content of the data information, that is, after the N pieces of information are combined according to the serial numbers, data information can be formed without modifying the order. In addition, the data information in the original graphic encoded data can be divided into N pieces of information unevenly. Alternatively, the data information in the original graphic encoding data can be divided into N pieces of information according to the semantic structure, the delimiter structure, and the like.

As can be seen from the above description, a plurality of hierarchical graphic encoding data may be located at different levels, wherein each graphic encoding data may be divided into a predetermined number of graphic encoding data serving as subcodes at most. The hierarchical graphics encoding data obtained by dividing the original graphics encoding data is located at the next level of the original graphics encoding data. The new hierarchical graphic coding data obtained by dividing the specific hierarchical graphic coding data is located at the next level of the specific hierarchical graphic coding data. For another example, when the number of sub-codes N is 8, the original graphic coded data can be divided into 8 sub-coded data at most, and each sub-coded data can be divided into 8 grand-coded data at most, and so on.

In this application, the original graphics encoding data conforming to the encoding ratio, the original graphics encoding data, the original graphics encoding data, the generated original graphics encoding data conforming to the encoding ratio, the generated original graphics encoding data, the generated can refer to the same content.

The generated original graphic coded data includes: main scaling, system information and backup information, wherein the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information . The generated raw graphics encoded data also includes subscales.

The setting means 1109 is configured to set in the configuration information of the sub-coded data: the quantity of the sub-coded data, the serial number of the sub-coded data, and the hash value of the original graphic-coded data. In the present application, the configuration information of the hierarchical graphic coding data includes: the quantity of the graphic coding data of the same level, the serial number of the graphic coding data of the same level, and the hash value of the graphic coding data of the upper level.

The header information is the outline information of the data information included in the generated graphic encoding data conforming to the encoding scale. The data information of the sub-coded data includes the code error correction level of the original graphic encoded data and the partial data information of the original graphic encoded data. Each of the plurality of hierarchical graphic coding data includes: an error correction level of the upper-level graphic coding data and partial data information of the upper-level coding data. The configuration information further includes: configuration information version number, header information flag bit, block flag bit and self-defined configuration data. The configuration information further includes: the total number of code blocks, the serial number of the current code block, and the hash value of the upper-level code block. The header information also includes a compression flag.

The present application also includes generating encrypted graphics coded data in the following manner, generating a hash string for the title information of the unencrypted original graphics coded data, and using the hash string to interpret the original graphics coded data Byte-by-byte XOR operation is performed on the data information, and the XOR-operated graphics encoding data is encrypted to generate encrypted graphics encoding data. After receiving the encrypted graphics encoding data, decrypt the encrypted graphics encoding data to generate the graphics encoding data to be processed, generate a hash string for the title information of the graphics encoding data to be processed, and use The hash string performs byte-by-byte XOR operation on the data information of the to-be-processed graphics encoding data to obtain unencrypted original graphics encoding data.

The present invention has been described with reference to a few embodiments. However, as is known to those skilled in the art, other embodiments than the above disclosed invention are equally within the scope of the invention, as defined by the appended patent claims.

Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/the/the [means, component, etc.]" are open to interpretation as at least one instance of said means, component, etc., unless expressly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

Claims (87)

1. A method of secure information transfer by graphically encoding data, the method comprising:

determining an encoding ratio of an image area for each application for the graphics-encoded data based on a display range for each application in the plurality of applications for displaying the graphics-encoded data and a maximum amount of information of a single graphics-encoded data;

when a specific application in the plurality of applications wants to transmit information content, generating unencrypted original graphic encoding data which accords with the encoding proportion based on the information content to be transmitted;

performing structural analysis on the information content to be transmitted, and dividing the information content to be transmitted into a plurality of information subsets according to the result of the structural analysis;

dividing a data information area of the original image coding data which is not encrypted into a plurality of sub-areas according to each information subset, and determining an encryption unit and an encryption mode for each sub-area; and

for each sub-region, taking an encryption unit as a minimum encryption object and encrypting each encryption unit according to an encryption mode to generate encrypted graphics coded data, and performing safe information transfer based on the encrypted graphics coded data;

wherein the structure parsing comprises semantic structure parsing and separator structure parsing;

when the structural analysis is semantic structural analysis, the structural analysis is performed on the information content to be transmitted, and the dividing the information content to be transmitted into a plurality of information subsets according to the result of the structural analysis comprises:

semantic structure analysis is carried out on the information content to be transmitted to generate a plurality of semantic structure subunits;

dividing the information content to be transmitted into a plurality of information subsets according to the semantic structure subunits;

when the structure analysis is separator structure analysis, the performing structure analysis on the information content to be transmitted, and dividing the information content to be transmitted into a plurality of information subsets according to the result of the structure analysis comprises:

carrying out separator structure analysis on the information content to be transmitted to generate a plurality of separator structure subunits;

and dividing the information content to be transmitted into a plurality of information subsets according to the plurality of separator structure subunits.

2. The method of claim 1, further comprising, prior to determining the encoding scale of the image region for each application of graphically encoded data based on the display range for each application of the plurality of applications for displaying graphically encoded data and the maximum amount of information for a single graphically encoded data:

acquiring application description information associated with user equipment, and determining a plurality of applications which desire information transfer through graphic coded data based on the application description information;

determining the maximum information quantity required by each application for information transmission through single graphic coded data according to the information transmission requirement of each application in a plurality of applications; and

the graphical interface of each application for providing the graphical encoded data is parsed to determine a display range that each application can use to display the graphical encoded data.

3. The method of claim 2, wherein the application description information comprises a plurality of description items, each description item having a format of < application name, application type, associated device type, encoded data flag >.

4. The method of claim 2, determining the information transfer requirements of each application based on the data integrity required for each application to transfer information via graphically encoded data.

5. The method of claim 4, the information delivery requirements comprising an amount of peak data involved in order to meet data integrity.

6. The method of claim 5, determining a maximum amount of information required for information transfer by a single graphic coded data per application from the peak data amount.

7. The method of claim 2, the graphical interface being an interface for each application to communicate information using graphically encoded data.

8. The method of claim 2 or 7, the display range being a range for displaying graphically encoded data in a graphical interface.

9. The method of claim 1, wherein determining the encoding scale of the image region for each application of graphically encoded data based on the display range for each application of the plurality of applications to display the graphically encoded data and the maximum amount of information for a single graphically encoded data comprises:

determining a length and a width of a display range for each of the plurality of applications to display the graphically encoded data;

determining the horizontal encoding quantity of each image area applied for graphically encoding data according to the width of the display range;

determining the longitudinal coding number of each image area applied to the graphic coding data according to the length of the display range and the maximum information amount of the single graphic coding data; and

the encoding ratio of each image region to which the image encoding data is applied is determined based on the number of horizontal encodings and the number of vertical encodings.

10. The method of claim 9, wherein determining a number of vertical encodings per image region applied for graphically encoded data based on the length of the display range and the maximum amount of information comprises:

determining a preselected longitudinal code number according to the maximum information amount and the transverse code number;

when it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings per image area applied for graphically encoded data.

11. The method according to claim 1 or 2, wherein the shape of the display range is rectangular and the shape of the image area is rectangular.

12. A method according to claim 1 or 2, wherein the display area is rectangular in shape and the image area is rectangular in shape.

13. The method of any of claims 1-7, wherein the coding ratio is 0.618.

14. The method according to any one of claims 1-7, wherein the unencrypted original graphics encoding data conforming to the encoding scale comprises: configuration information, header information, and data information.

15. The method of claim 14, further comprising compressing header information and/or data information in the original graphics coded data to generate compressed graphics coded data, the compressed graphics coded data having an area less than or equal to an area of the original graphics coded data.

16. The method of claim 15, further comprising communicating information based on the compressed graphically encoded data.

17. The method of claim 1, wherein the encryption scheme of each encryption unit is the same or different.

18. The method of claim 1, wherein the encryption scheme is predetermined by a provider that provides the graphical encoded data, or the encryption scheme is determined based on requirements of a user that uses the graphical encoded data.

19. The method of claim 1, the encryption unit being a single coding unit, a plurality of coding units, or a block of data.

20. The method according to claim 1 or 19, wherein the coding units of the original graphics coded data are circular, rectangular and elliptical.

21. The method of claim 1 or 2, further comprising,

a provider of the graphic coded data receives an information processing request aiming at the cooperative service, wherein the information processing request comprises information content associated with the cooperative service and a structure description file of the cooperative service;

analyzing the structure description file of the cooperative service to determine a plurality of cooperative devices related to the cooperative service and a cooperative task related to each cooperative device;

generating original graphic coding data comprising data information according to information content associated with the collaborative service, and dividing the data information in the generated original graphic coding data into a plurality of sub data information based on a collaborative task related to each collaborative device;

determining an incidence relation among the plurality of cooperative devices, and determining a hierarchical relation for each sub data information in a plurality of sub data information based on the incidence relation; and

the generated original pattern coded data is divided into a plurality of hierarchical pattern coded data based on the hierarchical relationship of each sub data information, and each hierarchical pattern coded data is distributed to a corresponding cooperative device to perform information processing.

22. The method of claim 21, wherein after each cooperative device performs information processing according to the corresponding hierarchical encoded graphic data, combining results of each cooperative device generated by the information processing to generate a response message, and transmitting the response message to a provider of the encoded graphic data.

23. The method of claim 22, further comprising setting header information for each hierarchical graphically encoded data, wherein the header information for each hierarchical graphically encoded data is the same as, different from, or related to the header information for the generated original graphically encoded data.

24. The method of claim 14, further comprising,

receiving a code division request for dividing the generated original graph coding data;

analyzing the code division request to determine the number N of subcodes;

dividing data information included in the generated original graphic coding data into N pieces of sub-data information; and

and dividing the generated original graph coded data into N sub-coded data according to the N sub-data information.

25. The method of claim 24, further comprising transmitting each of the N sub-coded data to a respective user device, wherein each user device is capable of receiving at least one sub-coded data.

26. The method of claim 24, further comprising setting header information for each of the sub-coded data, wherein the header information of each of the sub-coded data is the same as, different from, or related to the header information of the generated original graphics coded data.

27. The method of claim 24, further comprising:

a code division request for dividing specific sub-encoded data is received, and the specific sub-encoded data is divided into a predetermined number of grandchild encoded data according to the code division request.

28. The method of claim 1, wherein the generated original graphics encoding data comprises: the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information.

29. The method of claim 28, wherein the generated original graphically encoded data further includes sub-scaling.

30. The method of claim 24, further comprising including in the configuration information of the sub-coded data: the number of the sub-coded data, the sequence number of the sub-coded data, and the hash value of the original graphic coded data.

31. The method of claim 21, further comprising including in the configuration information of the hierarchically encoded graphical data: the number of the same-level graphic coded data, the serial number of the same-level graphic coded data and the hash value of the upper-level graphic coded data.

32. The method according to claim 14, wherein the header information is summary information of data information included in the generated graphic coded data in conformity with the coding scale.

33. The method of claim 24, wherein the data information of the sub-coded data includes a code error correction level of the original pattern-coded data and partial data information of the original pattern-coded data.

34. The method of claim 21, wherein each hierarchical graphic encoding data of a plurality of hierarchical graphic encoding data comprises: the error correction level of the upper graphics coded data and partial data information of the upper coded data.

35. The method of any of claims 30-31, the configuration information further comprising: configuration information version number, header information zone bit, block zone bit and custom configuration data.

36. The method of any of claims 30-31, the configuration information further comprising: the total number of code blocks, the current code block sequence number, and the hash value of the upper code block.

37. The method of any one of claims 15, 23, 26 and 32, wherein the header information further comprises a compression flag.

38. The method according to any one of claims 15, 23, 26 and 32, further comprising generating encrypted graphics encoding data by generating a hash string for header information of the original graphics encoding data that is not encrypted, performing byte-wise exclusive-or operation on data information of the original graphics encoding data using the hash string, and encrypting the exclusive-or operated graphics encoding data to generate the encrypted graphics encoding data.

39. The method of claim 38, wherein after receiving the encrypted encoded graphics data, decrypting the encrypted encoded graphics data to generate encoded graphics data to be processed, generating a hash string for header information of the encoded graphics data to be processed, and performing byte-by-byte exclusive-or operation on data information of the encoded graphics data to be processed using the hash string to obtain the original encoded graphics data without encryption.

40. The method of claim 21, the collaborative service being a service that is commonly accomplished by a plurality of collaborative devices.

41. The method of claim 21, wherein the structure description file of the collaborative service is used to indicate a logical structure of the collaborative service, and the collaborative service can be divided into a plurality of sub-services based on the structure description file.

42. A method according to claim 41, wherein each of the plurality of sub-services corresponds to a collaborative task involving a respective collaborative device.

43. The method of claim 21, the association between the plurality of cooperating devices comprising: peer relationships, superior relationships, subordinate relationships, and conditional relationships.

44. A system for secure information transfer by graphically encoding data, the system comprising:

scale determining means for determining a coding scale of an image area for graphics-coded data per application based on a display range for displaying the graphics-coded data per application among a plurality of applications and a maximum information amount of a single graphics-coded data;

generating means for generating, when a specific application of the plurality of applications desires to perform transfer of the information content, original pattern-encoded data that is not encrypted in conformity with the encoding ratio based on the information content to be transferred;

the analysis device is used for carrying out structural analysis on the information content to be transmitted and dividing the information content to be transmitted into a plurality of information subsets according to the result of the structural analysis;

the processing device is used for dividing a data information area of the original image coding data which is not encrypted into a plurality of sub-areas according to each information subset, and determining an encryption unit and an encryption mode for each sub-area; and

the encryption device is used for taking the encryption unit as a minimum encryption object and encrypting each encryption unit according to an encryption mode for each subarea to generate encrypted graph coding data and safely transmitting information based on the encrypted graph coding data;

wherein the structure parsing comprises semantic structure parsing and separator structure parsing;

when the structural analysis is semantic structural analysis, the structural analysis is performed on the information content to be transmitted, and the dividing the information content to be transmitted into a plurality of information subsets according to the result of the structural analysis comprises:

semantic structure analysis is carried out on the information content to be transmitted to generate a plurality of semantic structure subunits;

dividing the information content to be transmitted into a plurality of information subsets according to the semantic structure subunits;

when the structure analysis is separator structure analysis, the performing structure analysis on the information content to be transmitted, and dividing the information content to be transmitted into a plurality of information subsets according to the result of the structure analysis comprises:

carrying out separator structure analysis on the information content to be transmitted to generate a plurality of separator structure subunits;

and dividing the information content to be transmitted into a plurality of information subsets according to the plurality of separator structure subunits.

45. The system of claim 44, further comprising initialization means for obtaining application description information associated with the user device, determining a plurality of applications for which information transfer via graphically encoded data is desired based on the application description information;

determining the maximum information quantity required by each application for information transmission through single graphic coded data according to the information transmission requirement of each application in a plurality of applications; and

the graphical interface of each application for providing the graphical encoded data is parsed to determine a display range that each application can use to display the graphical encoded data.

46. The system of claim 45, wherein the application description information comprises a plurality of description items, each description item having a format of < application name, application type, associated device type, encoded data flag >.

47. The system of claim 45, wherein the initialization device determines the information transfer requirements of each application based on the data integrity required for each application to transfer information via graphically encoded data.

48. The system of claim 47, the information delivery requirements comprising an amount of peak data involved in order to meet data integrity.

49. The system of claim 48, wherein the initialization means determines a maximum amount of information required for information transfer by a single graphically encoded data per application based on the peak data amount.

50. The system of claim 45, the graphical interface being an interface for each application to communicate information using graphically encoded data.

51. The system of claim 45 or 50, the display range being a range for displaying graphically encoded data in a graphical interface.

52. The system of claim 44, wherein the ratio determining means determines the encoding ratio of the image region for each application for graphically encoded data based on the display range for each application for displaying graphically encoded data in the plurality of applications and the maximum amount of information for a single graphically encoded data comprises:

determining a length and a width of a display range for each of the plurality of applications to display the graphically encoded data;

determining the horizontal encoding quantity of each image area applied for graphically encoding data according to the width of the display range;

determining the longitudinal coding number of each image area applied to the graphic coding data according to the length of the display range and the maximum information amount of the single graphic coding data; and

the encoding ratio of each image region to which the image encoding data is applied is determined based on the number of horizontal encodings and the number of vertical encodings.

53. The system of claim 52, wherein the ratio determining means determines the number of vertical encodings per image region applied for graphically encoded data based on the length of the display range and the maximum amount of information comprises:

determining a preselected longitudinal code number according to the maximum information amount and the transverse code number;

when it is determined that the length of the display range can accommodate the preselected number of vertical encodings, the preselected number of vertical encodings is determined as the number of vertical encodings per image area applied for graphically encoded data.

54. The system of claim 44 or 45, wherein the display range is rectangular in shape and the image area is rectangular in shape.

55. A system according to claim 44 or 45, wherein the display area is rectangular in shape and the image area is rectangular in shape.

56. The system of any of claims 44-50, wherein the encoding ratio is 0.618.

57. The system of any one of claims 44-50, wherein the unencrypted original graphics encoding data in accordance with the encoding scale comprises: configuration information, header information, and data information.

58. The system according to claim 57, further comprising compression means for compressing header information and/or data information in the original graphics coded data to generate compressed graphics coded data, the area of the compressed graphics coded data being less than or equal to the area of the original graphics coded data.

59. The system of claim 58, further comprising communicating information based on the compressed graphically encoded data.

60. The system according to claim 44, wherein the encryption scheme of each encryption unit is the same or different.

61. The system of claim 44, wherein the encryption scheme is predetermined by a provider that provides the graphical encoded data, or the encryption scheme is determined based on requirements of a user that uses the graphical encoded data.

62. The system of claim 44, the encryption unit being a single coding unit, a plurality of coding units, or a block of data.

63. The system of claim 44 or 62, wherein the coding units of the original graphically encoded data are circular, rectangular and oval.

64. The system according to claim 44 or 45, further comprising dividing means for causing a provider of graphics coded data to receive an information processing request for a collaborative service, wherein the information processing request includes information content associated with the collaborative service and a structure description file of the collaborative service;

analyzing the structure description file of the collaborative service to determine a plurality of collaborative devices related to the collaborative service and a collaborative task related to each collaborative device;

generating original graphic coding data comprising data information according to information content associated with the collaborative service, and dividing the data information in the generated original graphic coding data into a plurality of sub data information based on a collaborative task related to each collaborative device;

determining an association relationship between the plurality of cooperative devices, and determining a hierarchical relationship for each sub data information of a plurality of sub data information based on the association relationship; and

the generated original pattern coded data is divided into a plurality of hierarchical pattern coded data based on the hierarchical relationship of each sub data information, and each hierarchical pattern coded data is distributed to a corresponding cooperative device to perform information processing.

65. The system according to claim 64, wherein after each cooperative device has undergone information processing based on the corresponding hierarchical encoded graphic data, the dividing means combines the results of the information processing by each cooperative device to generate a response message, and transmits the response message to the provider of the encoded graphic data.

66. The system according to claim 64, further comprising setting means for setting header information for each of the hierarchically encoded graphical data, wherein the header information of each of the hierarchically encoded graphical data is the same as, different from, or related to the header information of the generated original graphically encoded data.

67. The system according to claim 57, further comprising dividing means for receiving a dividing request for dividing the generated original graphics encoding data;

analyzing the code division request to determine the number N of subcodes;

dividing data information included in the generated original graphic coding data into N pieces of sub-data information; and

and dividing the generated original graphics coded data into N sub-coded data according to the N pieces of sub-data information.

68. The system of claim 67, the dividing means transmits each of the N sub-coded data to a respective user device, wherein each user device is capable of receiving at least one sub-coded data.

69. The system according to claim 67, further comprising setting means for setting header information for each of the sub-coded data, wherein the header information of each of the sub-coded data is the same as, different from or related to the header information of the generated original graphically coded data.

70. The system of claim 67, the dividing means receives a division request for dividing a particular sub-coded data, and divides the particular sub-coded data into a predetermined number of grandchild coded data according to the division request.

71. The system of claim 44, wherein the generated original graphic encoding data comprises: the system information includes size level information and error correction level information, and the backup information includes size level information and error correction level information.

72. The system of claim 71, wherein the generated original graphically encoded data further includes sub-scaling.

73. The system according to claim 67, further comprising setting means for including, in the configuration information of the sub-coded data: the number of the sub-coded data, the sequence number of the sub-coded data, and the hash value of the original graphic coded data.

74. The system of claim 64, further comprising including in the configuration information of the hierarchically encoded graphical data: the number of the same-level graphic coded data, the serial number of the same-level graphic coded data and the hash value of the upper-level graphic coded data.

75. The system of claim 57, wherein the header information is summary information of data information included in the generated encoded graphic data in accordance with the encoding scale.

76. The system of claim 67, wherein the data information of the sub-coded data includes a code error correction level of the original pattern-coded data and partial data information of the original pattern-coded data.

77. The system of claim 64, wherein each hierarchical graphic encoding data of the plurality of hierarchical graphic encoding data comprises: the error correction level of the upper graphics coded data and partial data information of the upper coded data.

78. The system of any of claims 73-74, the configuration information further comprising: configuration information version number, header information flag bit, block flag bit and custom configuration data.

79. The system of any of claims 73-74, the configuration information further comprising: the total number of code blocks, the current code block sequence number, and the hash value of the upper code block.

80. The system of any one of claims 58, 66, 69, and 75, the header information further comprising a compression flag.

81. The system according to any one of claims 58, 66, 69 and 75, wherein the encryption means is adapted to generate encrypted graphics-coded data by generating a hash string for header information of the original graphics-coded data that is not encrypted, performing byte-by-byte exclusive-or operation on data information of the original graphics-coded data using the hash string, and encrypting the exclusive-or operated graphics-coded data to generate the encrypted graphics-coded data.

82. The system of claim 81, wherein after receiving the encrypted encoded graphical data, decrypting the encrypted encoded graphical data to generate encoded graphical data to be processed, generating a hash string for header information of the encoded graphical data to be processed, and performing a byte-wise exclusive-or operation on data information of the encoded graphical data to be processed using the hash string to obtain the original unencrypted encoded graphical data.

83. The system of claim 64, the collaborative service is a service that is jointly completed by a plurality of collaborative devices.

84. The system of claim 64, the structure description file of the collaborative service to indicate a logical structure of the collaborative service, and the collaborative service is separable into a plurality of sub-services based on the structure description file.

85. A system according to claim 84, wherein each of the plurality of sub-services corresponds to a collaborative task involving a respective collaborative device.

86. The system of claim 64, the association between the plurality of cooperating devices comprising: peer relationships, superior relationships, subordinate relationships, and conditional relationships.

87. A mobile terminal comprising a system according to any of claims 44-86.

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