WO2021003916A1

WO2021003916A1 - Dynamic verification method and apparatus, and computer device and storage medium

Info

Publication number: WO2021003916A1
Application number: PCT/CN2019/116433
Authority: WO
Inventors: 莫鹏程
Original assignee: 平安普惠企业管理有限公司
Priority date: 2019-07-11
Filing date: 2019-11-08
Publication date: 2021-01-14
Also published as: CN110472386A; CN110472386B

Abstract

A dynamic verification method and apparatus, and a computer device and a storage medium. The method comprises: selecting, according to a pre-set selection rule, a random number of characters to be recognized; generating a verification picture according to the selected characters to be recognized; after a picture position is randomly selected from all picture positions in the verification picture, adding the selected picture position to a display queue according to a selection sequence (S30); offsetting a pre-set display box to a picture position ranking first in the selection sequence in the display queue, and displaying, in the pre-set display box, image content, corresponding to the picture position, in the verification picture (S40); determining whether a verification character input by a user is consistent with a character to be recognized that is contained in the image content; if same is inconsistent, providing a prompt that this verification has failed; and if same is consistent, adding one to the number of character verification successes, and when the number of character verification successes is greater than or equal to a pre-set threshold value of the number of verifications, determining that verification is successful. The method can increase the difficulty of cracking the verification of a robot program, such that the security performance during a verification process is improved.

Description

Dynamic verification method, device, computer equipment and storage medium

This application is based on the Chinese patent application filed on July 11, 2019 with the application number 201910625910.1 and titled "dynamic verification method, device, computer equipment and storage medium", and claims its priority.

Technical field

This application relates to the field of cryptographic technology, in particular to a dynamic verification method, device, computer equipment and storage medium.

Background technique

With the development of science and technology, the development of web crawler technology is at an increasingly mature stage, but because part of the information or data involves personal privacy and the interests of the industry, at this time, in order to avoid being crawled by the web crawler technology. For personal privacy and industry interest information or data, verification codes can be used to distinguish whether a user is a machine or a human, so as to prevent users from using illegal robot programs to automatically crawl when they know the accounts of others. At present, if malicious use of illegal robot programs is used to crawl information or data, after each password is entered in the crawling process, the verification code will be required to be successfully verified before subsequent operations can be continued, and automatic crawling of robot programs has been added. The difficulty. However, in the prior art, although the verification code technology increases the difficulty of frequent injection of illegal robot programs, the mainstream verification code technology is usually generated according to this format after the verification code format is set by the verification code generator. The verification code format is used in several ways. After the second time, it is easy to be understood by machine learning, thereby reducing its anti-leakage effect. Therefore, finding a technical solution that can increase the difficulty of the robot program cracking and verification process has become an urgent problem for those skilled in the art.

Summary of the invention

Based on this, it is necessary to provide a dynamic verification method, device, computer equipment, and storage medium for the above technical problems, which are used to increase the difficulty of the robot program cracking verification process, thereby improving the safety performance in the verification process.

A dynamic verification method, including:

Receive a verification request, and select a random number of characters to be recognized from the preset character library according to preset selection rules;

A verification picture is generated according to the random number of the characters to be recognized, the verification picture includes image content corresponding to a plurality of picture positions, and each of the image contents corresponding to the picture position includes at least one The character to be recognized;

After randomly selecting the picture positions from all the picture positions in the verification picture, adding all the picture positions selected to the display queue in the order of selection;

Offset the preset display frame to the picture position in the selection order first in the display queue, and display the image corresponding to the picture position in the verification picture in the preset display frame content;

Receiving a verification character input by a user for the image content displayed in the display frame, and determining whether the verification character is consistent with the character to be recognized included in the image content displayed in the display frame;

When the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame, it is prompted that the verification fails;

When the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, the number of successful character verification is increased by one, and the number of successful character verification is greater than or equal to a preset Confirm that the verification is successful when the verification times threshold is set.

A dynamic verification device includes:

The selection module is used to receive a verification request, and select a random number of characters to be recognized from a preset character library according to a preset selection rule;

A generating module, configured to generate a verification picture according to the random number of the characters to be recognized, the verification picture contains image content corresponding to multiple picture positions, and each of the image content corresponding to the picture position Contains at least one character to be recognized;

The adding module is configured to randomly select the picture positions from all the picture positions in the verification picture, and add all the selected picture positions to the display queue in the order of selection;

The display module is configured to offset the preset display frame to the picture position in the selection sequence first in the display queue, and display the verification picture and the picture position in the preset display frame Corresponding image content;

The first judgment module is configured to receive the verification character input by the user for the image content displayed in the display frame, and determine whether the verification character is the same as the pending character contained in the image content displayed in the display frame. Whether the recognized characters are consistent;

A prompting module for prompting that the verification failed this time when the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame;

The confirmation module is used for adding one to the number of successful character verification when the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, and the number of successful character verification When it is greater than or equal to the preset verification times threshold, the verification is confirmed to be successful.

A computer device includes a memory, a processor, and computer-readable instructions stored in the memory and capable of running on the processor, and the processor implements the following steps when the processor executes the computer-readable instructions:

One or more non-volatile readable storage media storing computer readable instructions. When the computer readable instructions are executed by one or more processors, the one or more processors execute the following steps:

The details of one or more embodiments of the present application are presented in the following drawings and descriptions. Other features and advantages of the present application will become apparent from the description, drawings and claims.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of an application environment of a dynamic verification method in an embodiment of the present application;

Fig. 2 is a flowchart of a dynamic verification method in an embodiment of the present application;

3 is a schematic flowchart of step S20 of the dynamic verification method in an embodiment of the present application;

4 is a schematic flowchart of step S40 of the dynamic verification method in an embodiment of the present application;

FIG. 5 is a schematic flowchart of step S50 of the dynamic verification method in an embodiment of the present application;

FIG. 6 is a schematic flowchart of step S70 of the dynamic verification method in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a dynamic verification device in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a generating module in an embodiment of the present application;

9 is a schematic structural diagram of a dynamic verification device according to another embodiment of the present application;

Fig. 10 is a schematic diagram of a computer device in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

The dynamic verification method provided by this application can be applied in the application environment as shown in Figure 1, where the client communicates with the server through the network. Among them, the client can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices. The server can be implemented as an independent server or a server cluster composed of multiple servers.

In an embodiment, as shown in FIG. 2, a dynamic verification method is provided, and the method is applied to the server in FIG. 1 as an example for description, including the following steps:

S10, receiving a verification request, and selecting a random number of characters to be recognized from a preset character library according to a preset selection rule.

It is understandable that the characters to be recognized are pre-stored in the preset character library, and the characters to be recognized include but are not limited to English letters (such as a to z, etc.), Arabic numerals (such as 0 to 9, etc.), Chinese characters (such as a To nine) and punctuation marks (such as! etc.); in this embodiment, the characters to be recognized need to be selected from the preset character library according to the preset selection rules; the preset selection rules can be random selection of random numbers The characters to be recognized can also be selected by a selector according to a preset selection rule; for example, after a random number is randomly determined in the preset number range, the characters to be recognized are randomly selected according to the random number. Understandably, the characters to be recognized selected from the preset character library may not be repeated at all, but they may also be selected repeatedly. For example, corresponding to a verification request, the characters to be recognized may be randomly selected twice from the preset character library. Recognize the character "s".

In this embodiment, the preset selection rules, random numbers, and various characters to be recognized all belong to a variable factor, so it can increase the difficulty of the robot program to crack the verification process.

S20: Generate a verification picture according to the random number of the characters to be recognized, the verification picture includes image content corresponding to multiple picture positions, and each of the image content corresponding to the picture position includes At least one character to be recognized.

It is understandable that the verification picture is located in the picture area, and the entire picture area can be divided into a coordinate system (the verification picture in the coordinate system is divided into multiple picture positions, and a pair of verification pictures is in each picture position All have corresponding image content, and each image content contains at least one character to be recognized, that is, the number of picture positions in a verification picture is less than or equal to the random number of selected characters to be recognized), and the verification picture contains Multiple characters to be recognized, that is, each character to be recognized is located in the coordinate system, and each character to be recognized corresponds to a unique picture position (but the image content corresponding to a picture position may contain more than two Recognized characters), each picture position can be described by the coordinate value in the coordinate system; the character form of the character to be recognized in the verification picture can be set according to preset rules, and its deformation can be set in the verification The picture is displayed with a certain amount of deformation. The center position of the character to be recognized can be used to describe the coordinate value of the character to be recognized in the coordinate system, and then the deformation amount can be set according to the coordinate value of the character to be recognized; and the generated verification The characters to be recognized in the picture should not affect the recognition of normal people.

Further, as shown in FIG. 3, the step S20 includes:

S201. Acquire picture parameters used to generate a picture format of the verification picture, where the picture parameters include the number of the picture positions of the character to be recognized in the verification picture, the arrangement manner of each picture position, One or more of display font, display size, display background, display color, and interference elements.

In this step, the picture format includes the integration of all picture parameters, including but not limited to the number of picture positions of the character to be recognized in the verification picture, and the arrangement of each picture position (for example, each picture position is according to each The five behaviors are arranged from left to right), verify the display font in the picture (such as Song Ti, Kai Ti, etc.), display size (such as font size 3, size 4, etc.), display background (multiple preset background colors) Select from the board), display color, and interference elements (some interference elements used to interfere with the recognition of the robot program, such as interference points and interference lines floating on the display background of the verification picture).

S202: Set multiple generation rules corresponding to each of the picture parameters.

In this step, the generation rules can be set in advance, and the number can also be set according to demand. For example, the number of generation rules corresponding to each picture parameter can be set to 10, 15, and 20 Wait.

S203: After randomly selecting one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, generate the picture format of the verification picture according to all the randomly selected generation rules .

In this step, one of the generation rules corresponding to each picture parameter can be randomly selected from the multiple generation rules corresponding to each picture parameter mentioned in step S202; understandably, although the picture position There are multiple generation rules corresponding to the number of, but the user must randomly select one of the multiple generation rules that is less than or equal to the random number (because the number of image positions must be less than or equal to the number of characters to be recognized, Ensure that each picture position must contain at least one character to be recognized); for example, the number of picture positions (corresponding generation rules) can be any natural number from 2 to 100, that is, the number of picture positions corresponds to a total of 99 generation rules At this time, if the random number is 8, you can only randomly select one from the natural numbers 2-8 (if greater than 8, it is already greater than the random number of characters to be recognized) as the generation rule for verifying the number corresponding to the position of the picture in the picture ; Understandably, for the arrangement of each picture position, an example is as follows: if the number of selected picture positions is 10, the arrangement of picture positions is 5 in each row and arranged from left to right, at this time, if The picture area range is a square with a side length of 20 mm, so the arrangement of the picture positions in the picture area range in the subsequent step S206 will be arranged in a 2*5 manner. In this embodiment, it is necessary to integrate one of the generation rules corresponding to each of the randomly selected picture parameters, and a combination rule containing multiple generation rules can be obtained. The image format of the verification image can be generated according to this combination rule.

S204: Determine the correspondence between each character to be recognized and the picture position according to the random number and the number of the picture positions in the picture format.

In this step, the random number of characters to be recognized has been determined, and the number of picture positions for generating the picture format has also been determined. At this time, since a picture position must contain at least one character to be recognized, according to this principle, the server After randomly associating a random number of characters to be recognized with the position of each picture, the correspondence between each character to be recognized and the position of the picture can be determined. For example, the random number is 10 and the number of picture positions is 8. At this time, first select 8 randomly from the 10 selected characters to be recognized, and randomly correspond to the 8 picture positions one by one, and then the remaining two The characters to be recognized are randomly placed (two together or separated) to any picture position and associated with the picture position.

S205: Acquire a picture area range available for generating the verification picture.

In this step, the range of the picture area is self-preset, and the range of the picture area is not limited to any shape, for example, the shape can be square, circle, ellipse, etc. The verification image can only be generated within the area of the image.

S206: Generate the verification picture including all the characters to be recognized within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is based on the characters to be recognized. The corresponding relationship with the picture position is placed in each picture position in the verification picture.

In this step, from the picture format determined in step S203 above, the server can generate a verification picture containing various picture parameters according to the picture format, and at the same time, each character to be recognized in the verification picture will be based on each character to be recognized and the position of the picture. The corresponding relationship is placed in each picture position in the verification picture.

S30: After randomly selecting the picture positions from all the picture positions in the verification picture, all the selected picture positions are added to the display queue in the order of selection.

It is understandable that the position of the picture selected here cannot be repeated, because the content displayed in the display box of the repeatedly selected picture position will be consistent, so the verification effect will be reduced, and the reselection of the non-repetitive picture position can obviously improve The verification effect; understandably, the display order of each picture position in the display queue is arranged according to the selection order.

S40. Offset a preset display frame to the picture position in the selection sequence first in the display queue, and display all of the verification pictures corresponding to the picture position in the preset display frame. Description of the image content.

It is understandable that the width and height of the preset display box can be specified by setting the code in the cascading style sheet (ie css) (each verification request can correspond to a display box format), but the preset display box must Completely display the image content corresponding to a picture position in the verification picture (that is, the image content corresponding to the picture position includes the characters to be recognized and their background, etc.), and will not display the image content in other picture positions; the picture position corresponds to The image content not only includes the characters to be recognized, but may also include one or more of the number, background, and color of the characters to be recognized.

Further, as shown in FIG. 4, in order to accurately offset the display frame, the offsetting the preset display frame to before the picture position in the display queue that is selected in the first order, further includes:

S401: Establish a coordinate system within the range of the picture area, and determine the coordinate value of each picture position in the coordinate system.

It is understandable that since the picture area range is not limited to any shape, the server can establish a coordinate system according to the shape of the picture area range (this coordinate system can only take the first quadrant), for example, when the picture area range is regular When the shape is like a rectangle, one side of the rectangle can be used as the abscissa, and the side at right angles to the abscissa is the ordinate. That is, each picture position can be described by the coordinate value in the coordinate system.

S402: Determine, according to each of the coordinate values, an offset of the display frame in the cascading style sheet between each of the picture positions.

It is understandable that the cascading style sheet (ie css) has code to change the offset of the display box, and the offset only depends on the change of the coordinate value, for example, the coordinates of the first picture position in the coordinate system The value is (10, 10), and the coordinate value of the second picture position in the coordinate system is (20, 10), that is, the display box only needs to be offset by 10 units to the right (the unit can be px).

In the step S40, shifting the preset display frame to the first picture position in the selection sequence in the display queue includes:

S403: Offset the display frame to the first picture position in the selection sequence in the display queue according to the offset of the display frame between the picture positions.

In this step, when the display frame is shifted to the position of the picture for the first time, the display frame may be located at a position outside the first quadrant. For example, the position outside the first quadrant may be a pole coordinate value in the coordinate system. Specifically, the server will first follow the first picture position in the selection order in the display queue, and offset the display frame to the picture position according to the offset between the picture position and the display frame.

S50: Receive a verification character input by a user for the image content displayed in the display frame, and determine whether the verification character is consistent with the character to be recognized included in the image content displayed in the display frame.

Specifically, the user must input the verification characters in sequence according to the image content to which the characters to be recognized in the display queue belong; and input errors or redundant verification characters can be regarded as inconsistent with the recognized characters displayed in the display box; and the input If the verification character is consistent with the character to be recognized displayed in the display box, it can be considered that the correct verification character has been entered.

Further, as shown in FIG. 5, in order to prevent the robot program from running for a certain period of time, so as to get through the characters to be recognized displayed in the preset display box, and to prevent the user or the robot program from maliciously Operate to input verification characters; after receiving the verification characters input by the user for the image content displayed in the display box, the method further includes:

S501: Acquire a first time when the image content corresponding to the picture position is displayed in the display box, and a second time when the user inputs the verification character for the image content displayed in the display box.

It is understandable that the second time should be after the first time.

S502: Determine whether the time difference between the second time and the first time is greater than a preset time threshold.

It is understandable that this step is to provide a prescribed time (that is, a preset time threshold for the user to enter verification characters), the purpose is to prevent the robot program from cracking and getting through the preset display frame through a certain period of operation The displayed characters to be recognized.

S503: If the time difference is greater than the preset time threshold, determine that the verification character corresponding to the second time input by the user is invalid, and prompt the user that the time has expired.

It is understandable that when the time difference is greater than the preset time threshold, it can indicate that the user inputs the verification character at the specified time. In another embodiment, when the time difference is less than or equal to the preset time threshold, it may indicate that the user inputs the verification character at the specified time.

S504: Acquire the number of invalid times of the verification character input by the user after receiving the verification request, and determine whether the number of invalid times of the verification character is greater than a preset invalid times threshold.

It is understandable that there is also a limit on the number of invalid verification characters.

S505: If the number of times the verification character is invalid is greater than the preset threshold of the number of invalid times, it is forbidden to input the verification character through the Internet Protocol address corresponding to the user within the preset time period.

It is understandable that when the number of invalid verification characters is greater than the preset invalid number threshold, it can indicate that the user or the robot program is performing a malicious operation. The malicious operation of the user may be based on boring, but the malicious operation of the robot program may be for cracking The program code related to the verification; at this time, the server can prompt the background preset recipient to verify that the status is abnormal by email or SMS. In another embodiment, when the number of times the verification character is invalid is less than or equal to the preset invalid times threshold, it can be explained that the user accidentally misses the specified time and the verification character is invalid.

S60: When the verification character is not consistent with the character to be recognized included in the image content displayed in the display frame, a prompt is prompted that the verification fails.

It is understandable that when there is a verification character that is inconsistent with the character to be recognized displayed in the display box, the verification corresponding to the verification request will be considered as a failure, and the verification request will be rejected. At this time, if the user still wants to continue the verification, it will proceed to step S10 to send the next verification request. Understandably, the number of character verification failures for each verification request can be recorded, and the number of character verification failures for the same account on the same platform in a certain period of time (such as one hour) exceeds the preset verification failure threshold; or different When the number of character verification failures of the account through the same Internet Protocol address exceeds the preset verification failure threshold, it can be considered that there may be a user or robot program currently performing malicious operations. At this time, you can prompt the background to receive presets by email or SMS. The personnel verification status is abnormal.

S70. When the verification character is consistent with the character to be recognized contained in the image content displayed in the display frame, the number of successful character verifications is increased by one, and the number of successful character verifications is greater than or equal to When the preset verification times threshold, the verification is confirmed to be successful.

It is understandable that when the verification characters are consistent with the characters to be recognized displayed in the display box, and when the number of successful character verifications is greater than or equal to the preset verification times threshold, it indicates that the user meets the requirements for successful verification.

In another embodiment, as shown in FIG. 6, in step S70, after adding one to the number of successful character verifications, the method further includes:

S701: Acquire the number of the picture positions in the verification picture.

In this step, the number of picture positions can be obtained from the above step S201.

S702: When the number of successful character verifications is less than the preset verification number threshold, determine whether the number of successful character verifications reaches the number of picture positions.

It is understandable that when the number of successful character verifications is less than the preset verification times threshold, it can indicate that the user has not yet reached the requirement for successful verification. At this time, it is necessary to determine in the subsequent steps whether the number of successful character verifications reaches the number of image positions, and then determine whether the verification image needs to be updated corresponding to this verification request (when the number of successful character verifications reaches the number of image positions, the previous first The image content corresponding to all the picture positions in a verification picture has been displayed in the display box).

S703: If the number of successful character verifications reaches the number of positions in the picture, continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule, and The random number of the characters to be recognized generates the verification picture.

In this embodiment, when the number of successful character verifications reaches the number of picture positions, that is, the number of successful character verifications is equal to the number of picture positions, and the number of successful character verifications is less than the preset verification times threshold. For example, when the number of picture positions is 5, if the preset threshold of verification times is 8, at this time, when the number of successful character verifications is 5, it means that the number of successful character verifications has reached the number of picture positions, and The 5 successful character verification times correspond to the image content in each unique image position of the verification image respectively displayed in the display boxes. After the user enters the verification characters that are consistent with the characters to be recognized in the image content for 5 different image positions, there is no longer any image content that can be displayed in the display box in the verification image; therefore, when the number of successful character verifications reaches When the number of picture positions is determined, the server must enter step S10 to re-update the characters to be recognized in the verification picture, that is, to return to step S10 from the preset character library according to the preset selection rules to select the characters from the preset character library. Recognize the characters and execute the subsequent steps to generate a new verification picture (including the new character to be recognized and the new picture position in the verification picture). It is understandable that the number of characters to be recognized selected in this step is also random.

S704: If the number of successful character verifications does not reach the number of picture positions, continue to shift the preset display frame to the picture position first in the selection order in the display queue.

It is understandable that when the number of successful character verifications does not reach the preset update times, there is no need to update the characters to be recognized in the verification picture. It is only necessary to return to step S40 to verify the next picture position in the picture with the display frame offset value to display its corresponding image content.

To sum up, the above provides a dynamic verification method, receiving a verification request, selecting a random number of characters to be recognized from a preset character library according to a preset selection rule; generating according to the random number of characters to be recognized A verification picture, where the verification picture includes image content corresponding to multiple picture positions, and each of the image content corresponding to the picture position includes at least one character to be recognized; from the verification picture After randomly selecting the picture position from all the picture positions in, add all the selected picture positions to the display queue in the order of selection; offset the preset display frame to the first in the selection order in the display queue The picture position, and the image content corresponding to the picture position in the verification picture is displayed in the preset display box; and the verification input by the user for the image content displayed in the display box is received Character, and determine whether the verification character is consistent with the character to be recognized contained in the image content displayed in the display frame; the verification character and the image content displayed in the display frame include When the characters to be recognized are not consistent, the verification fails; when the verified characters are consistent with the characters to be recognized contained in the image content displayed in the display box, the characters are verified successfully The number of times is increased by one, and when the number of successful character verifications is greater than or equal to the preset verification times threshold, the verification is confirmed to be successful. This proposal selects a random number of characters to be recognized from the preset character library according to preset selection rules, and randomly selects the picture position from all picture positions in the self-verified picture, and the number of successful character verification is greater than or equal to the preset Confirm that the verification is successful only when the verification times threshold is reached. In this proposal, for each verification request, at least one verification picture can be randomly generated, and the picture format in each verification picture and the selection rule of the characters to be recognized are different, and they are selected for display during the verification process The selection order of the image content in the verification picture is also random. The verification of different verification requests through the image content in the above verification pictures with differences can greatly increase the difficulty of the robot program to crack the verification process, thereby reducing data information The possibility of leaking secrets and improve the security performance in the verification process.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

In one embodiment, a dynamic verification device is provided, and the dynamic verification device corresponds to the dynamic verification method in the above-mentioned embodiment one-to-one. As shown in FIG. 7, the dynamic verification device includes a selection module 11, a generation module 12, an addition module 13, a display module 14, a first judgment module 15, a prompt module 16 and a confirmation module 17. The detailed description of each functional module is as follows:

The selection module 11 is configured to receive a verification request, and select a random number of characters to be recognized from a preset character library according to a preset selection rule;

The generating module 12 is configured to generate a verification picture according to the random number of the characters to be recognized, the verification picture contains image content corresponding to a plurality of picture positions, and each of the images corresponding to the picture position The content includes at least one character to be recognized;

The adding module 13 is configured to randomly select the picture positions from all the picture positions in the verification picture, and then add all the selected picture positions to the display queue in the order of selection;

The display module 14 is configured to offset the preset display frame to the position of the picture in the selection sequence first in the display queue, and display the verification picture and the picture in the preset display frame The image content corresponding to the location;

The first judging module 15 is configured to receive the verification characters input by the user for the image content displayed in the display frame, and determine whether the verification characters and the image content contained in the image content displayed in the display frame Whether the characters to be recognized are consistent;

The prompting module 16 is used for prompting that the verification failed this time when the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame;

The confirmation module 17 is configured to increase the number of successful character verifications by one when the verification character is consistent with the character to be recognized contained in the image content displayed in the display frame, and when the character verification is successful When the number of times is greater than or equal to the preset verification times threshold, the verification is confirmed to be successful.

Further, as shown in FIG. 8, the generating module includes:

The first acquisition sub-module is configured to acquire picture parameters of a picture format used to generate the verification picture, the picture parameters including the number of the picture positions of the character to be recognized in the verification picture, and each One or more of the arrangement of the picture position, display font, display size, display background, display color and interference elements;

A setting sub-module for setting multiple generation rules corresponding to each of the picture parameters;

The selection sub-module is configured to randomly select one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, and then generate the verification picture according to all the randomly selected generation rules The picture format;

The determining sub-module is configured to determine the correspondence between each of the characters to be recognized and the picture position according to the random number and the number of the picture positions in the picture format;

The second obtaining submodule is used to obtain the range of the picture area available for generating the verification picture;

A generating submodule is used to generate the verification picture including all the characters to be recognized within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is in accordance with each The corresponding relationship between the character to be recognized and the position of the picture is placed in each position of the picture in the verification picture.

Further, as shown in FIG. 9, the dynamic verification device further includes:

A first determining module, configured to establish a coordinate system within the picture area, and determine the coordinate value of each picture position in the coordinate system;

The second determining module is configured to determine the offset of the display frame in the cascading style sheet between each of the picture positions according to each of the coordinate values;

The first offset module is configured to offset the display frame to the first in the selection order in the display queue according to the offset of the display frame between each of the picture positions The location of the picture.

Further, the dynamic verification device further includes:

The first acquiring module is configured to acquire the first time when the image content corresponding to the position of the picture is displayed in the display box, and the user inputs the verification characters for the image content displayed in the display box Second time

The second judgment module is configured to judge whether the time difference between the second time and the first time is greater than a preset time threshold;

The third determining module is configured to determine that the verification character input by the user corresponding to the second time is invalid if the time difference is greater than the preset time threshold, and prompt the user to have timed out ；

The second acquiring module is configured to determine the number of times the verification character input by the user is invalid since receiving the verification request, and determine whether the number of times the verification character is invalid is greater than a preset invalidity times threshold;

The prohibition module is configured to prohibit input of the verification character through the Internet Protocol address corresponding to the user within a preset time period if the number of invalid times of the verification character is greater than the preset invalid number threshold.

Further, the dynamic verification device further includes:

The third acquiring module is configured to acquire the number of the picture positions in the verification picture;

The third judgment module is configured to judge whether the number of successful character verifications reaches the number of positions in the picture when the number of successful character verifications is less than the preset verification times threshold;

The selection module is configured to continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule if the number of successful character verifications reaches the number of positions in the picture , And generate the verification picture according to the random number of the characters to be recognized;

The second offset module is configured to continue to offset the preset display frame to the first selection order in the display queue if the number of successful character verifications does not reach the number of image positions The location of the picture.

For the specific limitation of the dynamic verification device, please refer to the above limitation of the dynamic verification method, which will not be repeated here. Each module in the above-mentioned dynamic verification device can be implemented in whole or in part by software, hardware, and combinations thereof. The foregoing modules may be embedded in the form of hardware or independent of the processor in the computer device, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the foregoing modules.

In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. 10. The computer equipment includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used to store the data involved in the dynamic verification method. The network interface of the computer device is used to communicate with an external terminal through a network connection. The computer program is executed by the processor to realize a dynamic verification method.

In one embodiment, a computer device is provided, including a memory, a processor, and computer-readable instructions stored in the memory and capable of running on the processor, and the processor implements the following steps when the processor executes the computer-readable instructions:

In one embodiment, one or more non-volatile readable storage media storing computer readable instructions are provided, the non-volatile readable storage medium storing computer readable instructions, and the computer readable instructions When executed by one or more processors, one or more processors are caused to implement the following steps:

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing relevant hardware through computer-readable instructions, which can be stored in a non-volatile computer. In a readable storage medium, when the computer-readable instructions are executed, they may include the processes of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

Those skilled in the art can clearly understand that for the convenience and conciseness of description, only the division of the above-mentioned functional units and modules is used as an example. In practical applications, the above-mentioned functions can be allocated to different functional units and modules as required. Module completion means dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Claims

A dynamic verification method, characterized in that it comprises:

Receive a verification request, and select a random number of characters to be recognized from the preset character library according to preset selection rules;

A verification picture is generated according to the random number of the characters to be recognized, the verification picture includes image content corresponding to a plurality of picture positions, and each of the image contents corresponding to the picture position includes at least one The character to be recognized;

After randomly selecting the picture positions from all the picture positions in the verification picture, adding all the picture positions selected to the display queue in the order of selection;

Offset the preset display frame to the picture position in the selection order first in the display queue, and display the image corresponding to the picture position in the verification picture in the preset display frame content;

Receiving a verification character input by a user for the image content displayed in the display frame, and determining whether the verification character is consistent with the character to be recognized included in the image content displayed in the display frame;

When the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame, it is prompted that the verification fails;

When the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, the number of successful character verification is increased by one, and the number of successful character verification is greater than or equal to a preset Confirm that the verification is successful when the verification times threshold is set.
The dynamic verification method according to claim 1, wherein said generating a verification picture according to said random number of said characters to be recognized comprises:

Acquire the picture parameters of the picture format used to generate the verification picture, the picture parameters including the number of the picture positions of the character to be recognized in the verification picture, the arrangement of each picture position, and the display font , Display size, display background, display color and one or more of interference elements;

Set multiple generation rules corresponding to each of the picture parameters;

After randomly selecting one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, generate the picture format of the verification picture according to all the randomly selected generation rules;

Determining the correspondence between each of the characters to be recognized and the picture position according to the random number and the number of the picture positions in the picture format;

Obtaining a picture area range available for generating the verification picture;

The verification picture including all the characters to be recognized is generated within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is based on the characters to be recognized and all the characters. The corresponding relationship of the picture positions is placed in each of the picture positions in the verification picture.
The dynamic verification method according to claim 1, wherein the shifting the preset display frame to before the picture position in the display queue that is selected in the first order, further comprises:

Establish a coordinate system within the picture area, and determine the coordinate value of each picture position in the coordinate system;

Determine, according to each of the coordinate values, the offset of the display frame in the cascading style sheet between each of the picture positions;

According to the offset of the display frame between each of the picture positions, the display frame is shifted to the picture position that is the first in the selection order in the display queue.
The dynamic verification method according to claim 1, wherein after receiving the verification characters input by the user for the image content displayed in the display frame, the method further comprises:

Acquiring the first time when the image content corresponding to the picture position is displayed in the display box, and the second time when the user inputs the verification character for the image content displayed in the display box;

Determine whether the time difference between the second time and the first time is greater than a preset time threshold;

If the time difference is greater than the preset time threshold, determining that the verification character corresponding to the second time input by the user is invalid, and prompting the user that the time has expired;

Acquiring the number of invalid verification characters input by the user after receiving the verification request, and determining whether the number of invalid verification characters is greater than a preset invalid number threshold;

If the number of times the verification character is invalid is greater than the preset threshold of the number of invalid times, it is prohibited to input the verification character through the Internet Protocol address corresponding to the user within the preset time period.
The dynamic verification method according to claim 1, wherein after adding one to the number of successful character verifications, the method further comprises:

Acquiring the number of the picture positions in the verification picture;

When the number of successful character verifications is less than the preset verification times threshold, determining whether the number of successful character verifications reaches the number of picture positions;

If the number of successful character verifications reaches the number of positions in the picture, continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule, and according to the Generating the verification picture with a random number of the characters to be recognized;

If the number of successful character verifications does not reach the number of picture positions, continue to shift the preset display frame to the picture position that is the first in the selection order in the display queue.
A dynamic verification device, characterized by comprising:

The selection module is used to receive a verification request, and select a random number of characters to be recognized from a preset character library according to a preset selection rule;

A generating module, configured to generate a verification picture according to the random number of the characters to be recognized, the verification picture contains image content corresponding to multiple picture positions, and each of the image content corresponding to the picture position Contains at least one character to be recognized;

The adding module is configured to randomly select the picture positions from all the picture positions in the verification picture, and add all the selected picture positions to the display queue in the order of selection;

The display module is configured to offset the preset display frame to the picture position in the selection sequence first in the display queue, and display the verification picture and the picture position in the preset display frame Corresponding image content;

The first judgment module is configured to receive the verification character input by the user for the image content displayed in the display frame, and determine whether the verification character is the same as the pending character contained in the image content displayed in the display frame. Whether the recognized characters are consistent;

A prompting module for prompting that the verification failed this time when the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame;

The confirmation module is used for adding one to the number of successful character verification when the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, and the number of successful character verification When it is greater than or equal to the preset verification times threshold, the verification is confirmed to be successful.
The dynamic verification device according to claim 6, wherein the generating module comprises:

The first acquisition sub-module is configured to acquire picture parameters of a picture format used to generate the verification picture, the picture parameters including the number of the picture positions of the character to be recognized in the verification picture, and each One or more of the arrangement of the picture position, display font, display size, display background, display color and interference elements;

A setting sub-module for setting multiple generation rules corresponding to each of the picture parameters;

The selection sub-module is configured to randomly select one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, and then generate the verification picture according to all the randomly selected generation rules The picture format;

The determining sub-module is configured to determine the correspondence between each of the characters to be recognized and the picture position according to the random number and the number of the picture positions in the picture format;

The second obtaining submodule is used to obtain the range of the picture area available for generating the verification picture;

A generating submodule is used to generate the verification picture including all the characters to be recognized within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is in accordance with each The corresponding relationship between the character to be recognized and the position of the picture is placed in each position of the picture in the verification picture.
The dynamic verification device according to claim 6, wherein the dynamic verification device further comprises:

A first determining module, configured to establish a coordinate system within the picture area, and determine the coordinate value of each picture position in the coordinate system;

The second determining module is configured to determine the offset of the display frame in the cascading style sheet between each of the picture positions according to each of the coordinate values;

The first offset module is configured to offset the display frame to the first in the selection order in the display queue according to the offset of the display frame between each of the picture positions The location of the picture.
The dynamic verification device according to claim 6, wherein the dynamic verification device further comprises:

The first acquiring module is configured to acquire the first time when the image content corresponding to the position of the picture is displayed in the display box, and the user inputs the verification characters for the image content displayed in the display box Second time

The second judgment module is configured to judge whether the time difference between the second time and the first time is greater than a preset time threshold;

The third determining module is configured to determine that the verification character input by the user corresponding to the second time is invalid if the time difference is greater than the preset time threshold, and prompt the user to have timed out ；

The second acquiring module is configured to determine the number of times the verification character input by the user is invalid since receiving the verification request, and determine whether the number of times the verification character is invalid is greater than a preset invalidity times threshold;

The prohibition module is configured to prohibit input of the verification character through the Internet Protocol address corresponding to the user within a preset time period if the number of invalid times of the verification character is greater than the preset invalid number threshold.
The dynamic verification device according to claim 6, wherein the dynamic verification device further comprises:

The third acquiring module is configured to acquire the number of the picture positions in the verification picture;

The third judgment module is configured to judge whether the number of successful character verifications reaches the number of positions in the picture when the number of successful character verifications is less than the preset verification times threshold;

The selection module is configured to continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule if the number of successful character verifications reaches the number of positions in the picture , And generate the verification picture according to the random number of the characters to be recognized;

The second offset module is configured to continue to offset the preset display frame to the first selection order in the display queue if the number of successful character verifications does not reach the number of image positions The location of the picture.
A computer device includes a memory, a processor, and computer-readable instructions stored in the memory and capable of running on the processor, wherein the processor executes the computer-readable instructions as follows step:

Receive a verification request, and select a random number of characters to be recognized from the preset character library according to preset selection rules;

A verification picture is generated according to the random number of the characters to be recognized, the verification picture includes image content corresponding to a plurality of picture positions, and each of the image contents corresponding to the picture position includes at least one The character to be recognized;

After randomly selecting the picture positions from all the picture positions in the verification picture, adding all the picture positions selected to the display queue in the order of selection;

Offset the preset display frame to the picture position in the selection order first in the display queue, and display the image corresponding to the picture position in the verification picture in the preset display frame content;

Receiving a verification character input by a user for the image content displayed in the display frame, and determining whether the verification character is consistent with the character to be recognized included in the image content displayed in the display frame;

When the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame, it is prompted that the verification fails;

When the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, the number of successful character verification is increased by one, and the number of successful character verification is greater than or equal to a preset Confirm that the verification is successful when the verification times threshold is set.
11. The computer device of claim 11, wherein said generating a verification picture according to said random number of said characters to be recognized comprises:

Acquire the picture parameters of the picture format used to generate the verification picture, the picture parameters including the number of the picture positions of the character to be recognized in the verification picture, the arrangement of each picture position, and the display font , Display size, display background, display color and one or more of interference elements;

Set multiple generation rules corresponding to each of the picture parameters;

After randomly selecting one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, generate the picture format of the verification picture according to all the randomly selected generation rules;

Determining the correspondence between each of the characters to be recognized and the picture position according to the random number and the number of the picture positions in the picture format;

Obtaining a picture area range available for generating the verification picture;

The verification picture including all the characters to be recognized is generated within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is based on the characters to be recognized and all the characters. The corresponding relationship of the picture positions is placed in each of the picture positions in the verification picture.
The computer device according to claim 11, wherein the processor executes the computer before the shifting the preset display frame to the first picture position in the selection sequence in the display queue The following steps are also implemented when reading instructions:

Establish a coordinate system within the picture area, and determine the coordinate value of each picture position in the coordinate system;

Determine, according to each of the coordinate values, the offset of the display frame in the cascading style sheet between each of the picture positions;

According to the offset of the display frame between each of the picture positions, the display frame is shifted to the picture position that is the first in the selection order in the display queue.
The computer device according to claim 11, wherein after receiving the verification characters input by the user for the image content displayed in the display frame, the processor further implements The following steps:

Acquiring the first time when the image content corresponding to the picture position is displayed in the display box, and the second time when the user inputs the verification character for the image content displayed in the display box;

Determine whether the time difference between the second time and the first time is greater than a preset time threshold;

If the time difference is greater than the preset time threshold, determining that the verification character corresponding to the second time input by the user is invalid, and prompting the user that the time has expired;

Acquiring the number of invalid verification characters input by the user after receiving the verification request, and determining whether the number of invalid verification characters is greater than a preset invalid number threshold;

If the number of times the verification character is invalid is greater than the preset threshold of the number of invalid times, it is forbidden to input the verification character through the Internet Protocol address corresponding to the user within the preset time period.
The computer device according to claim 11, wherein after the number of successful character verifications is increased by one, the processor further implements the following steps when executing the computer-readable instruction:

Acquiring the number of the picture positions in the verification picture;

When the number of successful character verifications is less than the preset verification times threshold, determining whether the number of successful character verifications reaches the number of picture positions;

If the number of successful character verifications reaches the number of positions in the picture, continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule, and according to the Generating the verification picture with a random number of the characters to be recognized;

If the number of successful character verifications does not reach the number of picture positions, continue to shift the preset display frame to the picture position first in the selection order in the display queue.
One or more non-volatile readable storage media storing computer readable instructions, wherein when the computer readable instructions are executed by one or more processors, the one or more processors execute The following steps:

Receive a verification request, and select a random number of characters to be recognized from the preset character library according to preset selection rules;

A verification picture is generated according to the random number of the characters to be recognized, the verification picture includes image content corresponding to a plurality of picture positions, and each of the image contents corresponding to the picture position includes at least one The character to be recognized;

After randomly selecting the picture positions from all the picture positions in the verification picture, adding all the picture positions selected to the display queue in the order of selection;

Offset the preset display frame to the picture position in the selection order first in the display queue, and display the image corresponding to the picture position in the verification picture in the preset display frame content;

Receiving a verification character input by a user for the image content displayed in the display frame, and determining whether the verification character is consistent with the character to be recognized included in the image content displayed in the display frame;

When the verification character is not consistent with the character to be recognized contained in the image content displayed in the display frame, it is prompted that the verification fails;

When the verification character is consistent with the character to be recognized contained in the image content displayed in the display box, the number of successful character verification is increased by one, and the number of successful character verification is greater than or equal to a preset Confirm that the verification is successful when the verification times threshold is set.
15. The non-volatile readable storage medium of claim 16, wherein said generating a verification picture according to said random number of said characters to be recognized comprises:

Acquire the picture parameters of the picture format used to generate the verification picture, the picture parameters including the number of the picture positions of the character to be recognized in the verification picture, the arrangement of each picture position, and the display font , Display size, display background, display color and one or more of interference elements;

Set multiple generation rules corresponding to each of the picture parameters;

After randomly selecting one of the generation rules from the multiple generation rules corresponding to each of the picture parameters, generate the picture format of the verification picture according to all the randomly selected generation rules;

Determining the correspondence between each of the characters to be recognized and the picture position according to the random number and the number of the picture positions in the picture format;

Obtaining a picture area range available for generating the verification picture;

The verification picture including all the characters to be recognized is generated within the picture area according to the picture format, and each of the characters to be recognized in the verification picture is based on the characters to be recognized and all the characters. The corresponding relationship of the picture positions is placed in each of the picture positions in the verification picture.
The non-volatile readable storage medium according to claim 16, wherein the computer shifts the preset display frame to before the first picture position in the selection sequence in the display queue. When the readable instructions are executed by one or more processors, the one or more processors further execute the following steps:

Establish a coordinate system within the picture area, and determine the coordinate value of each picture position in the coordinate system;

Determine, according to each of the coordinate values, the offset of the display frame in the cascading style sheet between each of the picture positions;

According to the offset of the display frame between each of the picture positions, the display frame is shifted to the picture position that is the first in the selection order in the display queue.
The non-volatile readable storage medium according to claim 16, wherein after receiving the verification characters input by the user for the image content displayed in the display frame, the computer readable instruction is When executed by the one or more processors, the one or more processors further execute the following steps:

Acquiring the first time when the image content corresponding to the picture position is displayed in the display box, and the second time when the user inputs the verification character for the image content displayed in the display box;

Determine whether the time difference between the second time and the first time is greater than a preset time threshold;

If the time difference is greater than the preset time threshold, determining that the verification character corresponding to the second time input by the user is invalid, and prompting the user that the time has expired;

Acquiring the number of invalid verification characters input by the user after receiving the verification request, and determining whether the number of invalid verification characters is greater than a preset invalid number threshold;

If the number of times the verification character is invalid is greater than the preset threshold of the number of invalid times, it is forbidden to input the verification character through the Internet Protocol address corresponding to the user within the preset time period.
The non-volatile readable storage medium of claim 16, wherein after the number of successful character verifications is increased by one, when the computer-readable instruction is executed by one or more processors, the One or more processors also perform the following steps:

Acquiring the number of the picture positions in the verification picture;

When the number of successful character verifications is less than the preset verification times threshold, determining whether the number of successful character verifications reaches the number of picture positions;

If the number of successful character verifications reaches the number of positions in the picture, continue to select the random number of the characters to be recognized from the self-preset character library according to the preset selection rule, and according to the Generating the verification picture with a random number of the characters to be recognized;

If the number of successful character verifications does not reach the number of picture positions, continue to shift the preset display frame to the picture position first in the selection order in the display queue.