WO2021003916A1 - Procédé et appareil de vérification dynamique, et dispositif informatique et support de stockage - Google Patents

Procédé et appareil de vérification dynamique, et dispositif informatique et support de stockage Download PDF

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Publication number
WO2021003916A1
WO2021003916A1 PCT/CN2019/116433 CN2019116433W WO2021003916A1 WO 2021003916 A1 WO2021003916 A1 WO 2021003916A1 CN 2019116433 W CN2019116433 W CN 2019116433W WO 2021003916 A1 WO2021003916 A1 WO 2021003916A1
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Prior art keywords
picture
verification
character
recognized
preset
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PCT/CN2019/116433
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English (en)
Chinese (zh)
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莫鹏程
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平安普惠企业管理有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2119—Authenticating web pages, e.g. with suspicious links

Definitions

  • This application relates to the field of cryptographic technology, in particular to a dynamic verification method, device, computer equipment and storage medium.
  • 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.
  • a dynamic verification method including:
  • 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;
  • 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:
  • 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;
  • 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.
  • One or more non-volatile readable storage media storing computer readable instructions.
  • the computer readable instructions execute the following steps:
  • 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;
  • 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.
  • 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
  • step S20 of the dynamic verification method in an embodiment of the present application is a schematic flowchart of step S20 of the dynamic verification method in an embodiment of the present application
  • step S40 of the dynamic verification method in an embodiment of the present application 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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:
  • 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.
  • 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".
  • 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.
  • 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.
  • the step S20 includes:
  • 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.
  • 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).
  • 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
  • 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.
  • the generation rules can be set in advance, and the number can also be set according to demand.
  • the number of generation rules corresponding to each picture parameter can be set to 10, 15, and 20 Wait.
  • 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
  • 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.
  • 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.
  • 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.
  • the random number is 10 and the number of picture positions is 8.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • this coordinate system can only take the first quadrant
  • the shape is like a rectangle
  • one side of the rectangle can be used as the abscissa
  • 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.
  • 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).
  • 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.
  • the display frame 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.
  • the position outside the first quadrant may be a pole coordinate value in the coordinate system.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • a prescribed time that is, a preset time threshold for the user to enter verification characters
  • time difference 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.
  • the server can prompt the background preset recipient to verify that the status is abnormal by email or SMS.
  • 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.
  • the verification corresponding to the verification request will be considered as a failure, and the verification request will be rejected.
  • the user still wants to continue the verification, it will proceed to step S10 to send the next verification request.
  • 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
  • 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.
  • the personnel verification status is abnormal.
  • 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.
  • the number of picture positions can be obtained from the above step S201.
  • 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).
  • the number of successful character verifications 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.
  • step S10 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.
  • step S40 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.
  • 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
  • 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.
  • 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.
  • 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.
  • 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.
  • 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;
  • 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 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • a computer device 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:
  • 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;
  • 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.
  • 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 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;
  • 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.
  • Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • ROM read only memory
  • PROM programmable ROM
  • EPROM electrically programmable ROM
  • EEPROM electrically erasable programmable ROM
  • Volatile memory may include random access memory (RAM) or external cache memory.
  • 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.

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Abstract

La présente invention concerne un procédé et un appareil de vérification dynamique, un dispositif informatique et un support de stockage. Le procédé consiste à : sélectionner, selon une règle de sélection prédéfinie, un nombre aléatoire de caractères à reconnaître ; générer une image de vérification en fonction des caractères sélectionnés à reconnaître ; après qu'une position d'image ait été sélectionnée de manière aléatoire parmi toutes les positions d'image dans l'image de vérification, ajouter la position d'image sélectionnée à une file d'attente d'affichage selon une séquence de sélection (S30) ; décaler une case d'affichage prédéfinie vers un classement de position d'image en premier dans la séquence de sélection dans la file d'attente d'affichage, et afficher, dans la case d'affichage prédéfinie, un contenu d'image, correspondant à la position d'image, dans l'image de vérification (S40) ; déterminer si un caractère de vérification entré par un utilisateur est conforme à un caractère à reconnaître qui est contenu dans le contenu d'image ; si celui-ci n'est pas conforme, envoyer une notification indiquant que cette vérification a échoué ; et si celui-ci est conforme, ajouter un au nombre de réussites de vérification de caractères, et lorsque le nombre de réussites de vérification de caractère est supérieur ou égal à une valeur de seuil prédéfinie du nombre de vérifications, déterminer que la vérification est réussie. Le procédé peut augmenter la difficulté de craquage de la vérification d'un programme robotisé, de telle sorte que la performance de sécurité pendant un processus de vérification est améliorée.
PCT/CN2019/116433 2019-07-11 2019-11-08 Procédé et appareil de vérification dynamique, et dispositif informatique et support de stockage WO2021003916A1 (fr)

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CN111953647B (zh) * 2020-06-22 2022-09-27 北京百度网讯科技有限公司 安全校验方法、装置、电子设备和存储介质
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