CN114494474B - Generation method, verification method and device of universal verification code of human and legal equipment - Google Patents

Abstract

The invention discloses a generation method, a verification method and a device for a universal verification code for a person and a legal device, comprising: generating a first background picture of the verification code, and storing the corresponding generation time; encoding the generation time by using an encoding rule , obtain the coded data corresponding to the generation time; divide the first background picture into multiple time area pictures, and preprocess the time area pictures to obtain the second background picture; perform regional division on the second background picture to obtain the verification code characters Area picture, and randomly generate verification code characters in the verification code character area picture, and randomly generate verification code characters in the verification code character area picture, and then add interference rules to the verification code characters to obtain a general verification code for people and legal devices , to achieve universal verification between people and legal devices. The verification code generated by the invention can not only realize common use between people and legal devices, but also can make the identification speed of the device faster and the authentication efficiency high.

Description

Generating method, verification method and device for universal verification code for human and legal equipment

technical field

The invention relates to the technical field of image processing, and in particular, to a method for generating a verification code, a verification method and a device for common verification codes between people and legal devices.

Background technique

A verification code is to generate a picture from a string of randomly generated numbers or symbols, add some interference factors to the picture, and identify the character information with the naked eye of the user, enter the form and submit it to the website for verification, and a certain function can be used only after the verification is successful.

Recognition of captcha images: Captcha technology is designed to distinguish between humans and computers from the very beginning, and to identify the captcha by using the imitability of the human brain. Computer identification is more difficult, but people can easily identify. To recognize the verification code picture, the device generally needs to process in the following order: grayscale, binarization, denoising, character segmentation and character recognition. Grayscale processing refers to the process of converting a color image containing brightness and color into a grayscale image; character segmentation is to segment the verification code image in the verification code picture with the verification code characters as the target, and finally obtain several verification codes. character image.

In the existing image verification code recognition methods, the recognition process is complex and the efficiency is not high, and it is difficult to achieve the accuracy of the human recognition verification code under many interference conditions.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method for generating a picture verification code, a verification method and a corresponding device, so as to solve the above-mentioned problems in the background art.

To achieve the above purpose, the present invention provides a method for generating a picture verification code, comprising:

Generate the first background picture of the verification code, and store the generation time data of the first background picture;

Encoding the generation time data by using a preset coding rule, and obtaining time encoding data corresponding to the generation time data;

dividing the first background picture into a plurality of time zone pictures, and preprocessing each of the time zone pictures according to the time coding data to obtain a second background picture;

The second background picture is divided into regions, and a plurality of verification code character area pictures are obtained, and in each of the verification code character area pictures, a verification code character is randomly generated, and a preset verification code character is added to the verification code character. Interfere with the rules and obtain universal verification codes for people and legitimate devices.

Further, preferably, the generation time is encoded using a preset encoding rule, and the time code corresponding to the generation time is obtained, including:

Preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein the first The number of one minute includes the number of hours and the number of minutes; adding the number of years and the number of the first minutes, and combining with the number of months and days, the second generation time data is obtained;

Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above;

The integer part of the third generation time data and the numerical value of the first four digits of the decimal part are added to obtain the result of addition, and the first four digits of the result of the addition are used as the corresponding time of the generation time data coding.

Further, preferably, the first background picture is divided into a plurality of time area pictures, and the time area of each background picture is preprocessed according to the time coding data to obtain a second background picture, including :

Divide the first background picture into a plurality of first time region pictures, and perform grayscale and binarization processing on each of the time region pictures according to preset rules to obtain a plurality of second time region pictures ;

According to the time-encoded data and the number of black pixels in the second time-area picture, the RGB values of the pixels in the first time-area picture are adjusted, so that the time-area of the background pictures are processed according to the predetermined time area. The number of black pixels after grayscale and binarization processing according to the set rule corresponds to the time-coded data;

The adjusted first time region picture is used as the final time region picture, and combined with the undivided picture region parts in the first background picture, a second background picture is formed.

Further, preferably, the second background picture is divided into regions, a plurality of verification code character region pictures are obtained, and in each of the verification code character region pictures, the verification code characters are randomly generated, and then all verification code characters are randomly generated. Add preset interference rules to the above verification code characters to obtain verification codes common to people and legal devices, including:

Build a verification code character table in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters;

The second background picture is divided into regions to obtain a plurality of verification code character region pictures;

Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added;

The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized according to preset rules is the same as the number of black pixels in the verification code character area picture. The number of black pixels corresponding to the verification code characters is equal;

The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices.

The present invention also provides a verification method for a universal verification code for a person and a legal device, which is applied to the verification code generated by the method for generating a universal verification code for a person and a legal device described in any one of the above for verification, and the verification method includes:

According to the preset registration rules, a legal device is generated, and the information data of the verification code picture is obtained, and the information data includes: the grayscale parameter of the verification code picture, the binarization parameter, the area division information of the verification code picture, and the verification code. character association table;

According to the area division information of the verification code picture and the grayscale parameter and the binarization parameter of the verification code picture, obtain the corresponding time code of the generation time of the verification code background picture;

Obtain the characters of the verification code according to the grayscale parameter, the binarization parameter of the verification code picture, the area division information of the verification code picture, and the verification code character association table;

According to the generation time of the background picture of the verification code and the characters of the verification code, it is judged whether the verification code is correct.

The present invention also provides a verification code generation device, comprising: a generation module, an encoding module, a preprocessing module and an acquisition module, wherein;

The generation module is used to generate the first background picture of the verification code, and store the generation time data of the first background picture;

The encoding module is used to encode the generation time data using a preset encoding rule, and obtain time encoding data corresponding to the generation time data;

The preprocessing module is configured to divide the first background picture into a plurality of time region pictures, and preprocess each of the time region pictures according to the time coding data to obtain a second background picture;

The obtaining module is configured to perform area division on the second background picture, obtain a plurality of verification code character area pictures, and randomly generate a verification code character in each of the verification code character area pictures, and then analyze the verification code characters. Preset interference rules are added to the verification code characters to obtain a universal verification code for people and legal devices.

Further, as preferably, the encoding module is specifically used for:

Preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein the first The number of one minute includes the number of hours and the number of minutes; adding the number of years and the number of the first minutes, and combining with the number of months and days, the second generation time data is obtained;

Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above;

The integer part of the third generation time data and the numerical value of the first four digits of the decimal part are added to obtain the result of addition, and the first four digits of the result of the addition are used as the corresponding time of the generation time data coding.

Further, preferably, the preprocessing module is specifically used for:

Divide the first background picture into a plurality of first time region pictures, and perform grayscale and binarization processing on each of the time region pictures according to preset rules to obtain a plurality of second time region pictures ;

According to the time-encoded data and the number of black pixels in the second time-area picture, the RGB values of the pixels in the first time-area picture are adjusted, so that the time-area of the background pictures are processed according to the predetermined time area. The number of black pixels after grayscale and binarization processing according to the set rule corresponds to the time-coded data;

The adjusted first time region picture is used as the final time region picture, and combined with the undivided picture region parts in the first background picture, a second background picture is formed.

Further, as preferably, the acquisition module is specifically used for:

Build a verification code character table in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters;

The second background picture is divided into regions to obtain a plurality of verification code character region pictures;

Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added;

The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized according to preset rules is the same as the number of black pixels in the verification code character area picture. The number of black pixels corresponding to the verification code characters is equal;

The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices.

The present invention also provides a verification device for a universal verification code for people and legal equipment, comprising: an acquisition module, a time encoding module, a character module and a verification module, wherein:

The acquisition module is used for generating legal devices according to preset registration rules, and acquiring information data of the verification code picture, the information data including: grayscale parameters, binarization parameters, and verification code pictures of the verification code picture The area division information and the verification code character association table;

The decoding module is configured to obtain the corresponding time code of the generation time of the background picture of the verification code according to the area division information of the verification code picture and the grayscale parameter and the binarization parameter of the verification code picture;

The character module is used to obtain the characters of the verification code according to the grayscale parameter, the binarization parameter of the verification code picture, the area division information of the verification code picture, and the verification code character association table;

The verification module is configured to determine whether the verification code is correct according to the generation time of the verification code background picture and the characters of the verification code.

Compared with the prior art, the beneficial effects of the present invention are:

1. People can obtain the verification code character information by identifying the verification code picture with the naked eye, and the device can also obtain the verification code character information through a series of processing and identification of the verification code picture, so that people and devices can obtain the same verification code information, and finally achieve a human-to-human relationship. Devices can use a common authentication method. Using the verification code as a common identity authentication method for people and legal devices is more secure compared with user passwords and smart cards in the prior art.

2. Compared with the above-mentioned device-based authentication technology, the verification code technology needs to identify the verification code information and return it to the server in the process of device identity authentication. Verification effectively reduces the workload of the server, can better verify the true identity of the device, and prevent attackers from conducting brute force attacks.

3. Compared with the verification code that is directly used in the identity authentication system and cannot resist replay attacks and counterfeit servers, the present invention utilizes the conversion of the current time to time code, and writes it on the four corners of the verification code picture as the verification code behind. The basis for image generation. During the identity authentication process, the device first identifies the four corners of the verification code picture to obtain the time code. The device generates two time codes based on the current time of the device and the current time is pushed forward by one minute. The recognized time code is verified with the two time codes generated by the device. As long as one of the time codes generated by the device passes the verification, the verification code information process will continue to be performed on the verification code picture. Otherwise, the identity authentication process will end, and it will be effective. to prevent spoofing servers and replay attacks. Finally, two-way authentication is realized, which can effectively resist replay attacks and fake servers.

4. Compared with the prior art, the prior art treats the added interference information as invalid information. In the present invention, in the process of generating the verification code picture, noise points and interference lines are added to the interference information of the verification code picture, which is one of the characteristics of identifying the subsequent pictures. Noise points and interference lines are effective information, which will make it more difficult for other devices to identify, and improve the security of verification code image authentication.

5. Compared with the existing verification code image recognition, the existing verification code image recognition needs to go through: grayscale, binarization, denoising, image segmentation and character recognition. The identification process of the present invention is: area division, gray scale, binarization and character matching. The identification process of the present invention omits the denoising process and modifies the sequence of the verification code pictures. First, divide the verification code picture into regions, and then only need to perform grayscale and binarization processing on the divided regional pictures, and do not need to grayscale and binarize the entire verification code picture, so that the recognition speed of the device is faster. It is fast, has high authentication efficiency, and effectively prevents the identification and cracking of OCR technology.

6. In the area division and character recognition, according to the rules agreed by both parties, the image is divided into areas, grayscaled, and binarized in the set area, and finally a black and white image is generated. The black pixels are counted, and the number of pixels obtained corresponds to the character association table in the setting rule to determine what character it is. The pairing is convenient and fast, and there is no need to perform template matching and other operations on the characters, and the device is faster and more effective to operate.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following will briefly introduce the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, which are common in the art. As far as technical personnel are concerned, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic flowchart of a method for generating a verification code according to an embodiment of the present invention;

2 is a schematic flowchart of a verification method for a verification code provided by an embodiment of the present invention;

3 is a schematic structural diagram of an apparatus for generating a verification code provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an apparatus for verifying a verification code provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be understood that the step numbers used in the text are only for the convenience of description, and are not intended to limit the order in which the steps are performed.

It should be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural unless the context clearly dictates otherwise.

The terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and/or components, but do not exclude one or more other features, integers, steps, operations, elements, components and/or the existence or addition of its collection.

The term "and/or" refers to and including any and all possible combinations of one or more of the associated listed items.

Referring to FIG. 1, an embodiment of the present invention provides a method for generating a picture verification code. As shown in FIG. 1 , the method for generating a picture verification code includes steps S10 to S40. The specific steps are as follows:

S10. Generate a first background picture of the verification code, and store the generation time data of the first background picture.

Specifically, in response to the identity authentication request initiated by the device or the user, after the server receives the identity authentication request, the server reads the image randomly generated or stored by the server as the first background image of the verification code, and stores the generation time of the first background image. data.

S20. Encode the generation time data using a preset encoding rule, and obtain time encoding data corresponding to the generation time data.

Specifically, preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein, The first number of minutes includes the number of hours and the number of minutes; the number of years and the number of first minutes are added, and then combined with the number of months and days to obtain second generation time data;

Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above;

The integer part and the numerical value of the first four digits of the decimal part of the third generation time data are added to obtain an addition result, and the first four digits of the addition result are used as the corresponding time code of the generation time data .

For example: the current time is 15:11 on October 23, 2021 (ie 202110231511), multiply the hours by 60 and add the minutes, that is, 911. Add 911 and add the number of years, that is, 911+2021=2932. Then combine with month and day to 29321023, and finally divide by a larger convention number (for example, 8888), the obtained quotient F is 3297.8198694, add the integer 3297 in quotient F to the first four digits of the decimal in quotient F 8198 to get the result J is 11495, and the time code is 1495 by taking the last four digits of the result J.

It should be noted that, when the integer part or the fractional part is less than four digits, the four digits are formed by filling zeros.

S30: Divide the first background picture into multiple time region pictures, and preprocess each of the time region pictures according to the time encoding data to obtain a second background picture.

Specifically, dividing the first background picture into a plurality of first time region pictures, and performing grayscale and binarization processing on each of the time region pictures to obtain a plurality of second time region pictures;

Preferably, the four corners of the first background picture are divided into four M*M area pictures Ai, the upper left corner, the lower left corner, the upper right corner and the lower right corner area pictures are A1, A2, A3 and A4 respectively. The correspondence between the time codes P1, P2, P3, and P4 written in the area pictures A1, A2, A3, and A4 is clarified.

For example: Assuming that the time encoding is 1495, take M=5, and the divided area is 5*5; divide the four corners of the picture: the upper left corner is the first row to the fifth row, and the first column to the fifth column . The upper right corner is the first row to the fifth row, and the penultimate column to the penultimate fifth column. In the lower right corner are the first-to-last row to the fifth-last row, and the first-to-last column to the fifth-to-last column. In the lower left corner are the penultimate row to the fifth row and the first column to the fifth column. In step 1, the time code is obtained as 1495. The first value 1 in the time code corresponds to the upper left area picture, the second value 4 corresponds to the upper right area picture, and the third value 9 corresponds to the lower right area. The picture is the corresponding relationship, and the fourth value 5 is the corresponding relationship with the picture in the lower left corner.

According to the time-encoded data and the number of black pixels in the second time-area picture, the RGB values of the pixels in the first time-area picture are adjusted, so that the time areas of a plurality of background pictures are grayed out. The number of black pixel points after scale and binarization processing corresponds to the time-encoded data.

Specifically, gray-scale and binarization processing is performed on the second time area picture according to the preset weights WR, _WG , _WB and the threshold value _T ; Whether the pixel is equal to the corresponding time-encoded data, if not, then randomly adjust the RGB value of the black pixel in the second time area image, so that each second time area image is grayscaled as it passes through the area The number of black pixels after binarization and binarization is equal to the corresponding time-coded data.

The adjusted first time region picture is used as the final time region picture, and combined with the undivided picture region parts in the first background picture, a second background picture is formed.

S40, performing region division on the second background picture to obtain a plurality of verification code character region pictures, and randomly generating a verification code character in each of the verification code character region pictures, and then adding a pre-set to the verification code character Set interference rules, and obtain universal verification codes for people and legitimate devices.

Specifically, a verification code character table is constructed in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters;

The second background picture is divided into regions to obtain a plurality of verification code character region pictures;

It should be noted that, dividing the range of the captcha character area image for the second background image is to remove the time area image range in the above steps.

Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added;

The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized through preset rules is the same as the number of black pixels in the verification code. The number of black pixels corresponding to the code characters is equal;

It should be noted that the preset rule specifically refers to that the parameter values in the grayscale and binarization process can be set according to the actual situation, for example: the grayscale parameters W _R , W _G , W _B ; binarization parameter T, etc.

The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices.

Compared with the prior art, the method for generating a verification code provided by the present invention has the following beneficial effects:

The present invention utilizes the conversion of the current time into time code, and writes it into the four corners of the verification code picture as the basis for the subsequent verification code picture generation. During the identity authentication process, the device first identifies the four corners of the verification code picture to obtain the time code. The device generates two time codes based on the current time of the device and the current time is pushed forward by one minute. The recognized time code is verified with the two time codes generated by the device. As long as one of the time codes generated by the device passes the verification, the verification code information process will continue to be performed on the verification code picture. Otherwise, the identity authentication process will end, and it will be effective. to prevent spoofing servers and replay attacks. Finally, two-way authentication is realized, which can effectively resist replay attacks and fake servers.

As shown in Figure 2, the present invention also provides a verification code verification method, which is applied to verify the verification code generated by the verification code generation method described in any of the above, and the verification method includes:

S100, obtaining information data of the verification code, the information data includes: the time area picture range of the verification code and the character area picture of the verification code;

Specifically, after receiving the verification code picture, the device reads the parameters in the device storage module, such as: the time picture area division parameter, the value of the initialization time code array _L , the weights WR and _WG in the grayscale processing and the threshold value T in the binarization process of _WB , the initial value of the cycle i=1, and so on.

S110, according to the time area picture of the verification code, obtain the corresponding time code data of the generation time of the background picture of the verification code;

Specifically, the four corners in the verification code picture are divided to obtain four regional pictures respectively A1, A2, A3, and A4, and grayscale and binarization processing is performed on the above four regional pictures respectively, and the calculation The numbers of black pixels L1, L2, L3, and L4 in each of the four area pictures of A1, A2, A3, and A4 are combined by character connection to obtain time-encoded data.

S120, obtaining the characters of the verification code according to the character area picture of the verification code;

Specifically, obtain the character area picture of the verification code, perform grayscale and binarization processing on the character area picture, and calculate the number of black pixels in each character area picture, and then obtain the verification code according to the character association table. code characters to generate verification code information.

S130. Determine whether the verification code is correct according to the generation time of the verification code background picture and the characters of the verification code.

Compared with the prior art, the method for verifying a verification code provided by the present invention has the following beneficial effects:

The identification process of the present invention omits the denoising process and modifies the sequence of the verification code pictures. First, divide the verification code picture into regions, and then only need to perform grayscale and binarization processing on the divided regional pictures, and do not need to grayscale and binarize the entire verification code picture, so that the recognition speed of the device is faster. It is fast, has high authentication efficiency, and effectively prevents the identification and cracking of OCR technology.

As shown in FIG. 3 , the present invention further provides a verification code generation device 200, including: a generation module 201, an encoding module 202, a preprocessing module 203 and an acquisition module 204, wherein;

The generating module 201 is used to generate the first background picture of the verification code, and store the generation time data of the first background picture;

The encoding module 202 is configured to encode the generation time data using a preset encoding rule, and obtain time encoding data corresponding to the generation time data;

The preprocessing module 203 is configured to divide the first background picture into a plurality of time region pictures, and preprocess each of the time region pictures according to the time coding data to obtain a second background picture;

The obtaining module 204 is configured to perform area division on the second background picture, obtain a plurality of verification code character area pictures, and randomly generate a verification code character in each of the verification code character area pictures to obtain a verification code .

In an embodiment of the present invention, the encoding module is specifically used for:

Preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein the first The number of one minute includes the number of hours and the number of minutes; adding the number of years and the number of the first minutes, and combining with the number of months and days, the second generation time data is obtained;

Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above;

The integer part and the numerical value of the first four digits of the decimal part of the third generation time data are added to obtain an addition result, and the first four digits of the addition result are used as the corresponding time code of the generation time data .

In an embodiment of the present invention, the preprocessing module is specifically used for:

Dividing the first background picture into a plurality of first time region pictures, and performing grayscale and binarization processing on each of the time region pictures to obtain a plurality of second time region pictures;

According to the time-encoded data and the number of black pixels in the second time-area picture, the RGB values of the pixels in the first time-area picture are adjusted, so that the time-area of the background pictures are processed according to the predetermined time area. The number of black pixels after grayscale and binarization processing according to the set rule corresponds to the time-coded data;

The adjusted first time region picture is used as the final time region picture, and combined with the undivided picture region parts in the first background picture, a second background picture is formed.

In an embodiment of the present invention, the acquisition module is specifically used for:

Build a verification code character table in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters;

The second background picture is divided into regions to obtain a plurality of verification code character region pictures;

Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added;

The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized according to preset rules is the same as the number of black pixels in the verification code character area picture. The number of black pixels corresponding to the verification code characters is equal;

The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices.

As shown in FIG. 4, the present invention also provides a verification device 300 for verification code, including: an acquisition module 301, a decoding module 302, a character module 303 and a verification module 304, wherein;

The obtaining module 301 is configured to generate a legal device according to a preset registration rule, and obtain information data of the verification code picture, where the information data includes: grayscale parameters, binarization parameters, and verification code of the verification code picture. The area division information of the picture and the verification code character association table;

The time encoding module 302 is configured to obtain the corresponding time code of the generation time of the verification code background picture according to the area division information of the verification code picture and the grayscale parameter and the binarization parameter of the verification code picture;

The character module 303, the character module is used to obtain the characters of the verification code according to the grayscale parameter, the binarization parameter of the verification code picture, the area division information of the verification code picture, and the verification code character association table;

The verification module 304 is configured to determine whether the verification code is correct according to the generation time of the verification code background picture and the characters of the verification code.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made, and these improvements and modifications may also be regarded as It is the protection scope of the present invention.

Claims (8)

1. the generation method of a general verification code for people and legal equipment, is characterized in that, comprises: Generate the first background picture of the verification code, and store the generation time data of the first background picture; Encoding the generation time data by using a preset coding rule, and obtaining time encoding data corresponding to the generation time data; Dividing the first background picture into a plurality of time area pictures, and preprocessing each of the time area pictures according to the time coding data to obtain a second background picture, including: dividing the first background picture into Divide a plurality of first time area pictures, and perform grayscale and binarization processing on each of the time area pictures according to preset rules to obtain a plurality of second time area pictures; For the number of black pixels in the second time area picture, the RGB values of the pixels in the first time area picture are adjusted, so that the time areas of multiple background pictures are grayed according to preset rules. The number of black pixels after the binarization processing corresponds to the time coding data; the first time area picture after the adjustment process is used as the final time area picture, and the first background picture is not The divided picture area parts constitute the second background picture; The second background picture is divided into regions, and a plurality of verification code character area pictures are obtained, and in each of the verification code character area pictures, a verification code character is randomly generated, and a preset verification code character is added to the verification code character. Interfere with the rules and obtain universal verification codes for people and legitimate devices. 2. the generation method of the universal verification code of people and legal equipment according to claim 1, is characterized in that, described generation time adopts preset coding rule to encode, obtains the time code corresponding to described generation time, include: Preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein the first The number of one minute includes the number of hours and the number of minutes; adding the number of years and the number of the first minutes, and combining with the number of months and days, the second generation time data is obtained; Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above; The integer part of the third generation time data and the numerical value of the first four digits of the decimal part are added to obtain the result of addition, and the first four digits of the result of the addition are used as the corresponding time of the generation time data coding. 3. the generation method of the universal verification code of people and legal equipment according to claim 1, is characterized in that, described carrying out area division to described second background picture, obtains a plurality of verification code character area pictures, and in each In the picture of the verification code character area, randomly generate verification code characters, and then add preset interference rules to the verification code characters to obtain a verification code common to people and legal devices, including: Build a verification code character table in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters; The second background picture is divided into regions to obtain a plurality of verification code character region pictures; Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added; The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized according to preset rules is the same as the number of black pixels in the verification code character area picture. The number of black pixels corresponding to the verification code characters is equal; The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices. 4. a verification method for a universal verification code between people and legal equipment, which is applied to verify the verification code generated by the verification code generation method that is universal between people and legal equipment as claimed in claim 3, wherein the described Verification methods include: According to the preset registration rules, a legal device is generated, and the information data of the verification code picture is obtained, and the information data includes: the grayscale parameter of the verification code picture, the binarization parameter, the area division information of the verification code picture, and the verification code. character association table; According to the area division information of the verification code picture and the grayscale parameter and the binarization parameter of the verification code picture, obtain the corresponding time code of the generation time of the verification code background picture; Obtain the characters of the verification code according to the grayscale parameter, the binarization parameter of the verification code picture, the area division information of the verification code picture, and the verification code character association table; According to the corresponding time code of the generation time of the background picture of the verification code and the characters of the verification code, it is judged whether the verification code is correct. 5. a generation device of a universal verification code for people and legal equipment, characterized in that, comprising: a generation module, an encoding module, a preprocessing module and an acquisition module, wherein: The generation module is used to generate the first background picture of the verification code, and store the generation time data of the first background picture; The encoding module is used to encode the generation time data using a preset encoding rule, and obtain time encoding data corresponding to the generation time data; The preprocessing module is configured to divide the first background picture into a plurality of time region pictures, and preprocess each of the time region pictures according to the time coding data to obtain a second background picture. In: dividing the first background picture into a plurality of first time region pictures, and performing grayscale and binarization processing on each of the time region pictures according to preset rules to obtain a plurality of second time region pictures area picture; according to the time coding data and the number of black pixels in the second time area picture, adjust the RGB values of the pixels of the first time area picture, so that a plurality of background picture time areas The number of black pixels after grayscale and binarization processing according to preset rules corresponds to the time-encoded data; the adjusted first time area picture is used as the final time area picture , and combined with the part of the image area that is not divided in the first background image to form a second background image; The obtaining module is configured to perform area division on the second background picture, obtain a plurality of verification code character area pictures, and randomly generate a verification code character in each of the verification code character area pictures, and then analyze the verification code characters. Preset interference rules are added to the verification code characters to obtain a universal verification code for people and legal devices. 6. the generating device of the universal verification code of people and legal equipment according to claim 5, is characterized in that, described coding module is specially used for: Preprocessing the generation time data to obtain second generation time data; wherein, the preprocessing includes: dividing the generation time into years, months, days, and first minutes, wherein the first The number of one minute includes the number of hours and the number of minutes; adding the number of years and the number of the first minutes, and combining with the number of months and days, the second generation time data is obtained; Dividing the second generation time data by a preset value to obtain the third generation time data; wherein, the preset data is a value of four digits and above; The integer part of the third generation time data and the numerical value of the first four digits of the decimal part are added to obtain the result of addition, and the first four digits of the result of the addition are used as the corresponding time of the generation time data coding. 7. the generating device of the universal verification code of people and legal equipment according to claim 5, is characterized in that, described acquisition module is specially used for: Build a verification code character table in advance, and the verification code character table includes: verification code characters and the number of black pixels corresponding to the verification code characters; The second background picture is divided into regions to obtain a plurality of verification code character region pictures; Characters are randomly selected from the verification code character table, written into each of the verification code character area pictures, and interference noise points and interference lines are added; The RGB values of the pixels in the verification code character area picture are adjusted and processed, so that the number of black pixels after the verification code character area picture is grayed and binarized according to preset rules is the same as the number of black pixels in the verification code character area picture. The number of black pixels corresponding to the verification code characters is equal; The adjusted verification code character area picture is used as the final verification code character area picture, and combined with other areas of the second background picture, to form a general verification code for people and legal devices. 8. a verification device for a verification code universal to a person and legal equipment, for verifying the verification code generated by the verification code generation device that is universal to a person and legal equipment as claimed in claim 7, it is characterized in that, comprising: Get module, decoding module, character module and verification module, where: The acquisition module is used for generating legal devices according to preset registration rules, and acquiring information data of the verification code picture, the information data including: grayscale parameters, binarization parameters, and verification code pictures of the verification code picture The area division information and the verification code character association table; The decoding module is configured to obtain the corresponding time code of the generation time of the background picture of the verification code according to the area division information of the verification code picture and the grayscale parameter and the binarization parameter of the verification code picture; The character module is used to obtain the characters of the verification code according to the grayscale parameter, the binarization parameter of the verification code picture, the area division information of the verification code picture, and the verification code character association table; The verification module is configured to judge whether the verification code is correct according to the time code corresponding to the generation time of the verification code background picture and the characters of the verification code.

Images