CN115168826A - Projection verification method, device, electronic device, and computer-readable storage medium - Google Patents

Abstract

The disclosure provides a projection verification method, a projection verification device, electronic equipment and a computer-readable storage medium, and belongs to the technical field of network security. The method can construct the projection relation between the three-dimensional graph and the two-dimensional graph based on the virtual illumination points, and performs characteristic extraction and verification on the space transformation operation of an operator based on the projection relation, and the three-dimensional graph, the virtual illumination points and the like are not constrained in shape, position and the like, and the three-dimensional graph recognition difficulty is obviously higher than that of a plane graph, so that the projection verification method provided by the disclosure is different from the traditional two-dimensional plane man-machine verification method, the verification code recognition difficulty is effectively improved, the attack cost is increased, the problem that the verification codes such as text recognition, object classification, mathematical calculation and the like are easy to recognize and break is solved is avoided, and the network environment safety is further fully ensured.

Description

Projection verification method, device, electronic device, and computer-readable storage medium

technical field

The present disclosure belongs to the technical field of network security, and in particular relates to a projection verification method, an apparatus, an electronic device, and a computer-readable storage medium.

Background technique

With the continuous development of the information network, the application of the network has also penetrated into various fields such as work, study and life. At the same time, the network environment is also facing various challenges. For example, it is possible that a large number of repeated emails, short messages, requests, etc. sent through the machine program are received, resulting in increased server load and exhaustion of network resources, thus affecting the normal stability of the network environment.

The verification code can identify the operator through the input operation to determine whether the operator is the desired operation object, thereby ensuring that the data request is generated by normal interactive behavior and protecting the security of the network environment. Traditional verification codes can include point-and-click verification codes, sliding verification codes, calculation verification codes, etc. After providing text pictures, object pictures, scene pictures, and calculation formulas, input operations are received to assist in classifying objects and sliding trajectories. , sliding acceleration, data logic calculation and other reference factors to identify, to improve the difficulty of machine cracking.

However, with the application of image recognition technology and deep learning training in machine cracking, the difficulty of cracking is also decreasing, resulting in the reduction of the verification effectiveness of traditional verification codes, and it is difficult to fully protect the security of the network environment.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a projection verification method, device, electronic device and computer-readable storage medium, which can provide a verification code including a virtual light point, a three-dimensional figure, and a two-dimensional projection of the three-dimensional figure under the virtual light point. , the shape and position of the virtual light point, etc. are not constrained, so it can effectively improve the difficulty of the machine cracking the verification code, improve the verification effectiveness of the verification code, and further fully protect the security of the network environment.

In order to solve the above-mentioned technical problems, the present disclosure is implemented as follows:

In a first aspect, the present disclosure provides a projection verification method, the method may include: providing a projection verification code, the projection verification code includes a virtual light point, a projection body three-dimensional figure and a projection reference two-dimensional figure; The first space transformation operation is to obtain the projection target 2D graphics corresponding to the projection body 3D graphics under the virtual illumination point; in the case that the projection target 2D graphics and the projection reference 2D graphics meet the consistency conditions, the first spatial transformation operation is performed based on the first spatial transformation operation. Extract the projection operation features; perform projection verification according to the projection operation features.

Optionally, providing the projection verification code includes: acquiring the three-dimensional graphics of the projected ontology from a three-dimensional graphics library, where the three-dimensional graphics library includes one or more different three-dimensional graphics; The projection reference 2D graphics corresponding to the graphics; construct the reference mapping sequence of the projection ontology 3D graphics and the projection reference 2D graphics; perform the second space transformation operation on the projection ontology 3D graphics; The 3D graphics of the projection ontology after the space transformation operation is rendered to the user interface, and the projection verification code is provided.

Optionally, constructing a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics includes: obtaining the reference three-dimensional coordinates of the projected ontology three-dimensional graphics, and the reference two-dimensional coordinates of the projected reference two-dimensional graphics; The two-dimensional coordinates are mapped to obtain a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics.

Optionally, a reference mapping sequence exists between the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics, the projection operation feature includes a target mapping sequence, and extracting the projection operation feature based on the first spatial transformation operation includes: constructing the projected ontology after the first spatial transformation operation. The target mapping sequence corresponding to the three-dimensional graphics and the projection target two-dimensional graphics; the projection verification is performed according to the projection operation characteristics, including: performing error checking on the target mapping sequence and the reference mapping sequence, and performing projection verification according to the verification result.

Optionally, constructing a target mapping sequence corresponding to the projected ontology 3D graphics and the projected target 2D graphics after the first spatial transformation operation includes: acquiring the target 3D coordinates of the projected ontology 3D graphics after the first spatial transformation operation, and the projection target 2D coordinates. The target two-dimensional coordinates of the graphic; the three-dimensional coordinates of the target and the two-dimensional coordinates of the target are mapped to obtain the target mapping sequence of the projected ontology three-dimensional graphic and the projected target two-dimensional graphic after the space operation.

Optionally, extracting the projection operation feature based on the first space transformation operation includes: collecting a transformation trajectory of the three-dimensional graphics of the projected ontology during the first space transformation operation; performing projection verification according to the projection operation feature, including: performing behavior analysis on the transformation trajectory. , and perform projection verification based on the analysis results.

Optionally, collecting the transformation trajectory of the projected three-dimensional graphics of the body during the first spatial transformation operation includes: collecting the transformation trajectory of the projected three-dimensional graphics of the ontology through a sensor during the first spatial transformation operation.

In a second aspect, the present disclosure provides a projection verification device, which may include: a verification code providing module for providing a projection verification code, where the projection verification code includes a virtual light point, a projection body three-dimensional figure and a projected reference two-dimensional figure; The operation receiving module is used for receiving the first space transformation operation on the three-dimensional graphics of the projection body, and obtains the two-dimensional graphics of the projection target corresponding to the three-dimensional graphics of the projection body under the virtual illumination point; the feature extraction module is used for the projection target two-dimensional graphics and the projection target two-dimensional graphics. When the projection reference two-dimensional graphics meet the consistency condition, the projection operation feature is extracted based on the first space transformation operation; the feature verification module is used for performing projection verification according to the projection operation feature.

Optionally, the verification code providing module includes: a three-dimensional graphics acquisition sub-module for acquiring the three-dimensional graphics of the projection ontology from a three-dimensional graphics library, and the three-dimensional graphics library includes one or more different three-dimensional graphics; It is used to generate virtual lighting points and obtain the projected reference two-dimensional graphics corresponding to the projected three-dimensional graphics of the body under the virtual lighting points; the graphics mapping sub-module is used to construct the reference mapping sequence of the projected three-dimensional graphics of the ontology and the projected reference two-dimensional graphics; spatial transformation The sub-module is used to perform the second space transformation operation on the projection ontology 3D graphics; the verification code rendering sub-module is used to render the virtual light point, the projection reference 2D graphics and the projection ontology 3D graphics after the second spatial transformation operation to the user interface, providing projection verification code.

Optionally, the graphics mapping sub-module includes: a coordinate obtaining unit for obtaining the reference three-dimensional coordinates of the projected ontology three-dimensional graphics, and the reference two-dimensional coordinates of the projected reference two-dimensional graphics; a coordinate mapping unit for comparing the reference three-dimensional coordinates with the reference three-dimensional coordinates. Mapping is performed with reference to the two-dimensional coordinates to obtain a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics.

Optionally, there is a reference mapping sequence between the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics, the projection operation features include a target mapping sequence, and a feature extraction module, which is specifically used to obtain the projected ontology three-dimensional graphics and the projected target two after the first spatial transformation operation. The target mapping sequence corresponding to the dimensional graphics; the feature verification module is specifically used to perform error checking on the target mapping sequence and the reference mapping sequence, and perform projection verification according to the verification result.

Optionally, the feature extraction module is specifically used to obtain the target 3D coordinates of the projected ontology 3D graphics after the first space transformation operation, and the target 2D coordinates of the projected target 2D graphics; map the target 3D coordinates and the target 2D coordinates. , to obtain the target mapping sequence of the projected ontology 3D graphics and the projected target 2D graphics after the spatial operation.

Optionally, the feature extraction module is specifically used to collect the transformation trajectory of the projected ontology 3D graphics in the process of the first space transformation operation; the feature verification module is specifically used to perform behavior analysis on the transformation trajectory to obtain, and perform projection verification according to the analysis result. .

Optionally, the feature extraction module is specifically configured to collect the transformation trajectory of the three-dimensional figure of the projected body through the sensor during the first space transformation operation.

In a third aspect, the present disclosure provides an electronic device comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the projection verification method of the first aspect.

In a fourth aspect, the present disclosure provides a computer-readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by a processor, implements the steps of the projection verification method according to the first aspect.

In a fifth aspect, the present disclosure provides a chip including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the steps of the projection verification method of the first aspect.

In a sixth aspect, the present disclosure provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the steps as implementing the projection verification method of the first aspect.

In the projection verification method provided by the present disclosure, a projection verification code including a virtual illumination point, a projected ontology three-dimensional graphic and a projected reference two-dimensional graphic is provided, and the virtual illumination spot is obtained by performing a first spatial operation on the projected ontology three-dimensional graphic. The projection target two-dimensional figure below, in the case that the projection target two-dimensional figure and the projection reference two-dimensional figure meet the consistency condition, the projection operation feature of the first space transformation operation can be extracted, and then according to the projection operation feature, whether the operator is The desired object is verified; in the above scheme, the projection relationship between the three-dimensional graphics and the two-dimensional graphics is constructed based on the virtual light point, and the operator's spatial transformation operation is extracted and verified based on the projection relationship. There are no restrictions on the shape and position of the 3D graphics, and the recognition difficulty of three-dimensional graphics is significantly higher than that of flat graphics, which effectively improves the verification code recognition difficulty, increases the attack cost, and avoids text recognition, object classification, mathematical calculation and other verification codes that are easily detected. Identifying the problem of cracking further fully guarantees the security of the network environment.

Description of drawings

FIG. 1 is one of the flowcharts of the steps of the projection verification method provided by the embodiment of the present disclosure;

FIG. 2 is the second flow chart of the steps of the projection verification method provided by the embodiment of the present disclosure;

3 is a schematic diagram of generating a projection verification code according to an embodiment of the present disclosure;

FIG. 4 is a schematic rendering of a projection verification code according to an embodiment of the present disclosure;

FIG. 5 is one of schematic diagrams of a first spatial transformation operation provided by an embodiment of the present disclosure;

FIG. 6 is a second schematic diagram of a first space transformation operation provided by an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a projection verification apparatus provided by an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 9 is a schematic hardware diagram of an electronic device according to an embodiment of the present disclosure.

Detailed ways

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

The terms "first", "second", etc. in the description and claims of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that embodiments of the present disclosure can be practiced in sequences other than those illustrated or described herein, and distinguished by "first," "second," etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It should be noted that the data obtained in this disclosure, including operation data, three-dimensional graphics and other data, are not processed before the user or the relevant data owner is clearly informed of the data collection content, data usage, processing method and other information. With the consent and authorization of the owner, it can be accessed, collected, stored and used for subsequent analysis and processing, and the user or the owner of the relevant data can be provided with access, correction, and deletion of the data, as well as the method of withdrawing consent and authorization.

The projection verification provided by the embodiments of the present disclosure will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

FIG. 1 is one of a flow chart of steps of a projection verification method provided by an embodiment of the present disclosure. As shown in FIG. 1 , the method may include the following steps 101 to 104 .

Step 101 , providing a projection verification code, where the projection verification code includes a virtual light point, a three-dimensional figure of the projection body, and a projection reference two-dimensional figure.

The projection verification code refers to a verification code constructed based on the projection mapping relationship between the projected ontology 3D graphics and the projected reference 2D graphics under the virtual illumination point. The virtual light point can be an idealized and abstract particle light source, and the virtual light point can radiate light evenly to the surrounding space; 3D graphics are defined by the three coordinate axes of X-axis, Y-axis and Z-axis in space. The three-dimensional graphics can include three-dimensional geometric figures, such as spheres, cylinders, cones, etc., or three-dimensional images of specific things, such as apples, cars, umbrellas, etc. The three-dimensional graphics of the projected body may include one or more than two three-dimensional graphics, and the relationship between different three-dimensional graphics may be separation, splicing, or overlapping.

In the embodiment of the present disclosure, the projected reference two-dimensional graphic may be a projected two-dimensional graphic formed on a plane by the projected three-dimensional graphic of the ontology located at the reference space position under virtual illumination, and the display of the projected three-dimensional graphic of the ontology in the projected verification code The spatial location can be different from the reference spatial location.

Step 102 : Receive a first spatial transformation operation on the three-dimensional graphics of the projected body, and acquire the two-dimensional graphics of the projection target corresponding to the three-dimensional graphics of the projected body under the virtual illumination point.

The first space transformation operation may be operations such as translation, rotation, and scaling of the three-dimensional graphics of the projection body in space. Under the virtual lighting point, the 2D graphics of the projection target corresponding to the 3D graphics of the projection body can be obtained during the first space transformation operation, the 3D space system and the 2D plane system can be mapped based on the projection, and the stereoscopic reference is added in the verification. elements to improve the cracking difficulty of verification and enhance the accuracy of operator verification.

Step 103 , in the case that the projection target two-dimensional graphics and the projection reference two-dimensional graphics meet the consistency condition, extract the projection operation feature based on the first spatial transformation operation.

The consistency condition may be that on a plane, the difference in shape, size and position of the projection target 2D image and the projection reference 2D image is within the consistency error range. Under the condition of consistency, the two-dimensional graphics of the projection target and the projection reference are coincident or approximately coincident. The projection operation feature is used to represent the state change of the 3D graphics of the projected ontology during the first space transformation operation. It is the motion characteristics of the projected ontology 3D graphics during the first space transformation operation, such as transformation mode, transformation direction, transformation angle and transformation speed, etc. It can also be the shape and position of the projected ontology 3D graphics at the end of the first spatial transformation operation. Wait.

In the embodiment of the present disclosure, the end of the first space transformation operation may be that the transformation duration of the stop space position of the projection body 3D graphics exceeds the stop duration; or the projection target 2D graphics and the projection reference 2D graphics meet the consistency condition; or the projection target 2 The 2D graphics and the projected reference 2D graphics meet the consistency conditions, and the transformation duration of the stop space position of the projection ontology 3D graphics exceeds the stop duration. Among them, when the transformation duration of the stop space position of the projection body 3D graphics exceeds the stop duration, but the projection target 2D graphics and the projection reference 2D graphics do not meet the consistency conditions, a verification error can be prompted on the user interface; The stop state of the current projection body 3D graphics in the control position, the user interface prompts the space transformation operation when the corresponding projection target 2D graphics and the projection reference 2D graphics meet the consistency conditions, or the user interface prompts that the projection verification can be regenerated code.

Step 104: Perform projection verification according to the projection operation feature.

Among them, since the plane projections of the 3D graphics may overlap in different directions, the projection operation feature extracted based on the first spatial transformation operation can be used to determine whether the projection target 2D graphics and the projected reference 2D graphics meet the consistency conditions. On the above, it is further determined whether the target projection relationship between the projection body 3D graphics and the projection target 3D graphics conforms to the reference projection relationship between the projection body 3D graphics and the projection reference 3D graphics; the first spatial transformation operation can also be determined according to the projection operation characteristics. Whether the operation is performed for the desired object, such as the behavior characteristics of the first space transformation operation, the behavior characteristics of the historical space transformation operation of the desired object, or the state change characteristics of the projected ontology 3D graphics in the first space transformation operation, the behavior characteristics of the desired object The state change characteristics of the projected ontology three-dimensional graphics in the historical space transformation operation are analyzed, compared and matched to determine whether the first space transformation operation is performed by the desired object.

In the projection verification method provided by the present disclosure, a projection verification code including a virtual illumination point, a projected ontology three-dimensional graphic and a projected reference two-dimensional graphic is provided, and the virtual illumination spot is obtained by performing a first spatial operation on the projected ontology three-dimensional graphic. The projection target two-dimensional figure below, in the case that the projection target two-dimensional figure and the projection reference two-dimensional figure meet the consistency condition, the projection operation feature of the first space transformation operation can be extracted, and then according to the projection operation feature, whether the operator is The desired object is verified; in the above scheme, the projection relationship between the three-dimensional graphics and the two-dimensional graphics is constructed based on the virtual light point, and the operator's spatial transformation operation is extracted and verified based on the projection relationship. There are no restrictions on the shape and position of the 3D graphics, and the recognition difficulty of three-dimensional graphics is significantly higher than that of flat graphics, which effectively improves the verification code recognition difficulty, increases the attack cost, and avoids text recognition, object classification, mathematical calculation and other verification codes that are easily detected. Identifying the problem of cracking further fully guarantees the security of the network environment.

FIG. 2 is the second step flow chart of a projection verification method provided by an embodiment of the present disclosure. As shown in FIG. 2 , the method may include the following steps 201 to 210 .

Step 201: Acquire the three-dimensional graphics of the projection ontology from a three-dimensional graphics library, where the three-dimensional graphics library includes one or more different three-dimensional graphics.

Among them, the three-dimensional graphics library may be pre-established, and store more than one graphics library of different three-dimensional graphics. The three-dimensional graphics in the three-dimensional graphics library are different in shape, and the three-dimensional graphics of the projection body may be randomly selected from the three-dimensional graphics library. The 3D graphics can also be obtained by scaling, stretching, mirroring and other conversion operations on the randomly selected 3D graphics in the 3D graphics library. The 3D graphics of the projected ontology can include a randomly selected 3D graphics in the 3D graphics library, or can It is obtained by splicing or overlapping two or more randomly selected three-dimensional graphics from the three-dimensional graphics. On the basis that the three-dimensional graphics are difficult to identify and operate, the randomness of each projection verification can be further improved by random selection, random combination, etc., so as to improve the difficulty of cracking and ensure the validity of the verification. In the embodiment of the present disclosure, for the three-dimensional graphics, reference may be made to the relevant description of the foregoing step 101 , which is not repeated here to avoid repetition.

FIG. 3 is a schematic diagram of generating a projection verification code provided by an embodiment of the present disclosure. Taking a three-dimensional graphics library S storing a plurality of three-dimensional graphics as an example, as shown in FIG. 3 , a projection ontology is randomly selected from the three-dimensional graphics library S 3D graphics P.

Step 202: Generate a virtual light point, and obtain a projected reference two-dimensional figure corresponding to the projected three-dimensional figure of the body under the virtual light point.

In this embodiment of the present disclosure, for the virtual light point, reference may be made to the relevant description of the foregoing step 101 , which is not repeated here in order to avoid repetition. The spatial position of the virtual illumination point can be randomly set, and different virtual illumination points can be generated by controlling the distance and direction of the virtual illumination point relative to the 3D image of the projection body, thereby obtaining different projection reference 2D graphics corresponding to the 3D graphics of the projection body. The number of virtual lighting points may be one or more than two, so as to obtain one or more than two projected reference two-dimensional graphics corresponding to the three-dimensional graphics of the projected body. No specific restrictions are imposed.

As shown in FIG. 3 , a virtual illumination point L is randomly set, and its spatial coordinates are (X _L , Y _L , Z _L ); further, under the virtual illumination point L, a projection reference two-dimensional figure K is obtained.

Step 203 , constructing a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics.

Among them, the reference mapping sequence can be used to represent the spatial positional relationship between the projected ontology 3D graphics and the projected reference 2D graphics, wherein the projected ontology 3D graphics can be represented by vertex coordinates, the deflection direction of the central axis, and the positional relationship between the vertex and the bottom surface. Two-dimensional graphics can be represented by vertex coordinates, shape size, etc. In this embodiment of the present disclosure, a reference mapping sequence may be constructed for the projected ontology 3D graphics and the projected reference 2D graphics at the current spatial position to determine the reference projection relationship between the projected ontology 3D graphics and the projected reference 2D graphics. Through the reference mapping sequence, the different reference projection relationships between the projected ontology 3D graphics and its different projected reference 2D graphics can be distinguished, and the different reference projection relationships between the projected ontology 3D graphics and the same projected reference 2D graphics at different spatial positions can also be distinguished. When the 3D graphics of the ontology is a cone, and the virtual light point is on the axis where the vertices of the cone are located, the projected reference 2D graphics formed by its projection are all circles. The mapping sequence distinguishes between different reference projection relationships.

In a method embodiment of the present disclosure, step 203 may include the following steps S11 to S12.

Step S11 , acquiring the reference three-dimensional coordinates of the projected three-dimensional graphics of the body, and the reference two-dimensional coordinates of the projected reference two-dimensional graphics.

The reference 3D coordinates of the projected ontology 3D graphics can be obtained, and the reference 2D coordinates of the projected reference 2D graphics can be obtained. The reference 3D coordinates can be obtained when randomly selecting 3D graphics from the 3D graphics library to obtain the projected ontology 3D graphics, and the reference 2D coordinates can be obtained when obtaining the projected reference 2D graphics of the projected ontology 3D graphics under the virtual light point.

在虚拟关照点L下获得投影本体三维图形P的投影二维图形K，投影二维图形K的参考二维坐标为

As shown in Figure 3, the projection body 3D figure P is randomly selected from the 3D figure library S, and the reference 3D coordinates for obtaining the projection body 3D figure P are:

The projected two-dimensional figure K of the projected three-dimensional figure P is obtained under the virtual care point L, and the reference two-dimensional coordinates of the projected two-dimensional figure K are:

Step S12 , mapping the reference three-dimensional coordinates and the reference two-dimensional coordinates to obtain a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics.

The mapping between the reference 3D coordinates and the left side of the reference 2D can be constructed based on the reference projection relationship between the projected ontology 3D graphics and the projected reference 2D graphics under the virtual light point, so as to obtain a reference mapping sequence, that is, the coordinates in the projected ontology 3D graphics. point, which is mapped to its corresponding coordinate point on the projected reference 2D graphics. In the embodiment of the present disclosure, a three-dimensional and two-dimensional mapping relationship is established through virtual light points, which can effectively combine the three-dimensional space system and the two-dimensional plane reminder to form a reference from (X, Y, Z) three-dimensional to two-dimensional (X, Y) The mapping sequence increases the difficulty of cracking the verification code.

As shown in Figure 3, the reference three-dimensional coordinates and the reference two-dimensional coordinates are mapped to obtain the reference mapping sequence

Step 204 , performing a second space transformation operation on the three-dimensional figure of the projected ontology.

Wherein, the second space transformation operation is to randomly transform the spatial position of the projected ontology 3D graphics, so that it is separated from the position state of obtaining the projected reference two-dimensional graphics under the virtual light point. The second spatial transformation operation can refer to the aforementioned step 102. The description of the first space transformation operation is not repeated here in order to avoid repetition.

Step 205: Render the virtual light point, the projected reference two-dimensional graphic, and the projected ontology three-dimensional graphic after the second space transformation operation to the user interface, and provide the projection verification code.

The virtual light point, the projected reference two-dimensional graphics, and the projected ontology three-dimensional graphics after the second space transformation operation can be rendered to the user interface, so that the user can perform the first spatial transformation on the projected ontology three-dimensional graphics after the second spatial transformation operation. The transformation operation changes the spatial position of the 3D graphics of the projection ontology, and realizes the projection verification.

FIG. 4 is a schematic rendering of a projection verification code provided by an embodiment of the present disclosure. As shown in FIG. 4 , after the second spatial transformation operation is performed on the projection body three-dimensional graphic P, its spatial position changes. The virtual light point L, the projected reference two-dimensional graphic K, and the projected ontology three-dimensional graphic P after the second space transformation operation are rendered to the user interface.

Step 206 : Receive a first spatial transformation operation on the projection body's 3D graphics, and acquire a projection target 2D graphics corresponding to the projection body's 3D graphics under the virtual illumination point.

In this embodiment of the present disclosure, step 206 can be referred to the relevant description of the foregoing step 102, which is not repeated here in order to avoid repetition.

In a method embodiment of the present disclosure, there is a reference mapping sequence between the projected ontology 3D graphics and the projected reference 2D graphics, then after step 206, including:

Step 207 , constructing a target mapping sequence corresponding to the projected ontology three-dimensional graphic and the projected target two-dimensional graphic after the first spatial transformation operation.

In this embodiment of the present disclosure, for the target mapping sequence, reference may be made to the relevant description of the reference mapping sequence in the foregoing step 203 , which is not repeated here to avoid repetition.

In a method embodiment of the present disclosure, step 207 may include the following steps S21 to S22.

Step S21 , acquiring the target 3D coordinates of the projected body 3D graphics after the first space transformation operation, and the target 2D coordinates of the projected target 2D graphics.

Step S22 , mapping the three-dimensional coordinates of the target and the two-dimensional coordinates of the target to obtain a target mapping sequence of the projected three-dimensional graphics of the body and the projected two-dimensional graphics of the target after the space operation.

In the embodiment of the present disclosure, the acquisition of the three-dimensional coordinates of the target, the two-dimensional coordinates of the target, and the mapping of the target mapping sequence may correspond to the acquisition of the reference three-dimensional coordinates and the reference two-dimensional coordinates in the foregoing steps S11 to S12, and the mapping of the reference mapping sequence. , in order to avoid repetition, it is not repeated here.

For example, the target is established according to the collected three-dimensional coordinates of the target, the two-dimensional coordinates of the target X _P ' _... , Y' _P... , Z' _P... , X' _K... , Y' _K... map sequence

Step 208: Perform error checking on the target mapping sequence and the reference mapping sequence, and perform projection verification according to the verification result.

Among them, error checking is performed on the target mapping sequence and the reference mapping sequence, the error value of the mapping relationship between different coordinate points is determined, and the check result is determined according to the error value and the preset error range. The error value within the error range can be If the verification is successful, if the error value is outside the error range, the verification fails. On this basis, projection verification can be performed according to the verification result. If the verification succeeds, the projection verification of the target mapping sequence passes, and if the verification fails, the projection verification of the target mapping sequence fails.

和目标映射序列

进行误差分析，在误差范围内获得校验结果R₁，根据R₁进行投影验证。For example, for reference mapping sequences

and target mapping sequence

Carry out error analysis, obtain the verification result R ₁ within the error range, and perform projection verification according to R ₁ .

In a method embodiment of the present disclosure, after step 206, the method further includes:

Step 209: Collect the transformation trajectory of the three-dimensional graphics of the projection body during the first space transformation operation.

The transformation trajectory can be obtained by obtaining the coordinate point change sequence arranged in time sequence in the process of the first spatial transformation operation of the projected ontology 3D graphics, and the coordinate points can be vertices, center points, etc., and the first spatial transformation operation can be represented by the transformation trajectory. The changes in the position, direction, etc. of the overall three-dimensional figure of the mid-projection ontology in space can also represent the operator's operation intention and operation habits.

In a method embodiment of the present disclosure, step 209 specifically includes, in the process of the first space transformation operation, collecting the transformation trajectory of the three-dimensional figure of the projected body through a sensor.

Among them, the transformation trajectory of the three-dimensional graphics of the projection body can be collected by an external or built-in sensor. For example, when the operator clicks and drags the three-dimensional graphics of the projection body on the screen to perform the first space transformation operation, the pressure sensor can be used to obtain the operator's The sliding track on the device screen obtains the transformation track; when the operator moves the spatial position of the device to perform the first spatial transformation operation on the three-dimensional figure of the projection body displayed on the device screen, the operator's position on the device in space can be obtained through the displacement sensor. The movement trajectory in the trajectories obtains the transformation trajectory, and the embodiment of the present disclosure does not specifically limit the manner of obtaining the transformation trajectory.

FIG. 5 is one of the schematic diagrams of the first space transformation operation provided by the embodiment of the present disclosure. As shown in FIG. 5 , on the basis of FIG. It includes transformation trajectory M and angle transformation N.

FIG. 6 is the second schematic diagram of the first space transformation operation provided by the embodiment of the present disclosure. As shown in FIG. 6 , on the basis of FIG. ° is transformed to 61°, and the spatial position moves along the transformation trajectory M. At this time, under the virtual illumination point L, the projection target two-dimensional graphic of the projection body three-dimensional graphic P is K', which coincides with the projection reference two-dimensional graphic K.

For example, the transformation track M of the three-dimensional figure P of the projection body is collected by the sensor.

Step 210: Perform behavior analysis on the transformation trajectory, and perform projection verification according to the analysis result.

Among them, the behavior analysis can be realized by comparing the transformation trajectory and the spatial position transformation trajectory of the projected ontology 3D graphics before and after the second space transformation operation; the transformation trajectory can also be modeled and analyzed, by pre-collecting the historical space transformation operation in the projection verification pass and projection The trajectory samples that failed to be verified, or the trajectory samples of the transformation trajectory of the desired object operation and the transformation trajectory of other object operations are collected in advance, and the transformation trajectory analysis model is constructed, and then the transformation trajectory in this projection verification is extracted according to the constructed transformation trajectory analysis model. Coordinate features, time series features, etc., to realize the behavior analysis of the transformation trajectory and obtain the analysis results.

In the embodiment of the present disclosure, the analysis result may be the classification of the transformation trajectory. For example, when the analysis result of the transformation trajectory is the desired object operation and the projection verification passes, it may be determined that the projection verification of the transformation trajectory has passed, and the analysis result of the transformation trajectory is: When other object operations and projection validation fail, the projection validation to determine the transformation trajectory fails.

For example, the behavior analysis is performed on the deformation trajectory M, the analysis result R ₂ is obtained, and the projection verification is performed according to R ₂ .

In the embodiment of the present disclosure, when the projection verification fails, the user interface may further prompt that the projection verification fails this time, and wait for the first space transformation operation to be received or the projection verification code to be regenerated.

In the embodiment of the present disclosure, the target mapping sequence and the transformation trajectory can also be combined, and when the verification result of the error check between the target mapping sequence and the reference mapping sequence and the analysis result of the transformation trajectory pass the verification, it is determined that the operation in this verification is performed. is the desired operation object.

For example, projection verification is performed according to the verification result _R1 and the analysis result _R2 , and the projection verification result is output to the user interface.

In the projection verification method provided by the present disclosure, a projection verification code including a virtual illumination point, a projected ontology three-dimensional graphic and a projected reference two-dimensional graphic is provided, and the virtual illumination spot is obtained by performing a first spatial operation on the projected ontology three-dimensional graphic. The projection target two-dimensional figure below, in the case that the projection target two-dimensional figure and the projection reference two-dimensional figure meet the consistency condition, the projection operation feature of the first space transformation operation can be extracted, and then according to the projection operation feature, whether the operator is The desired object is verified; in the above scheme, the projection relationship between the three-dimensional graphics and the two-dimensional graphics is constructed based on the virtual light point, and the operator's spatial transformation operation is extracted and verified based on the projection relationship. There are no restrictions on the shape and position of the 3D graphics, and the recognition difficulty of three-dimensional graphics is significantly higher than that of flat graphics, which effectively improves the verification code recognition difficulty, increases the attack cost, and avoids text recognition, object classification, mathematical calculation and other verification codes that are easily detected. Identifying the problem of cracking further fully guarantees the security of the network environment.

In the projection verification provided by the embodiments of the present disclosure, the execution body may also be a projection verification apparatus, or a control module in the projection verification apparatus for performing projection verification. In the embodiments of the present disclosure, a method for performing projection verification by a projection verification apparatus is taken as an example to describe the apparatus for projection verification provided by the embodiments of the present disclosure.

FIG. 7 is a schematic structural diagram of a projection verification apparatus 700 provided by an embodiment of the present disclosure. As shown in FIG. 7 , the projection verification apparatus 700 may include: a verification code providing module 701 for providing a projection verification code, and the projection verification code includes virtual lighting point, the projection ontology 3D graphics and the projection reference 2D graphics; the operation receiving module 702 is configured to receive the first spatial transformation operation on the projection ontology 3D graphics, and obtain the projection target 2D graphics corresponding to the projection ontology 3D graphics under the virtual illumination point The feature extraction module 703 is used to extract the projection operation feature based on the first spatial transformation operation under the condition that the projection target two-dimensional graphics and the projection reference two-dimensional graphics meet the consistency conditions; the feature verification module 704 is used to extract the projection operation feature according to the projection operation feature Perform projection verification.

Optionally, the verification code providing module 701 includes: a three-dimensional graphics acquisition sub-module, used for acquiring the three-dimensional graphics of the projection ontology from a three-dimensional graphics library, and the three-dimensional graphics library includes one or more different three-dimensional graphics; an illumination point generation sub-module, It is used to generate virtual lighting points, and obtain the projected reference two-dimensional graphics corresponding to the projected ontology three-dimensional graphics under the virtual lighting points; the graphics mapping sub-module is used to construct the reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics; space The transformation submodule is used to perform the second space transformation operation on the projection ontology 3D graphics; the verification code rendering submodule is used to render the virtual illumination point, the projection reference 2D graphics and the projection ontology 3D graphics after the second spatial transformation operation to User interface that provides projection verification codes.

Optionally, the graphics mapping sub-module includes: a coordinate acquisition unit for acquiring the reference three-dimensional coordinates of the projected ontology three-dimensional graphics, and the reference two-dimensional coordinates of the projected reference two-dimensional graphics; a coordinate mapping unit for comparing the reference three-dimensional coordinates with the reference three-dimensional coordinates. Mapping is performed with reference to the two-dimensional coordinates to obtain a reference mapping sequence of the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics.

Optionally, a reference mapping sequence exists between the projected ontology 3D graphics and the projected reference 2D graphics, the projection operation feature includes a target mapping sequence, and the feature extraction module 703 is specifically configured to obtain the projected ontology 3D graphics and the projection target after the first spatial transformation operation. The target mapping sequence corresponding to the two-dimensional graphics; the feature verification module 704 is specifically configured to perform error checking on the target mapping sequence and the reference mapping sequence, and perform projection verification according to the verification result.

Optionally, the feature extraction module 703 is specifically used to obtain the target three-dimensional coordinates of the projected body three-dimensional graphics after the first space transformation operation, and the target two-dimensional coordinates of the projected target two-dimensional graphics; Mapping, to obtain the target mapping sequence of the projected ontology 3D graphics and the projected target 2D graphics after the spatial operation.

Optionally, the feature extraction module 703 is specifically used to collect the transformation trajectory of the projected ontology 3D graphics in the process of the first space transformation operation; the feature verification module 704 is specifically used to analyze the behavior of the transformation trajectory, and perform projection according to the analysis result. verify.

Optionally, the feature extraction module 703 is specifically configured to collect the transformation trajectory of the three-dimensional figure of the projected ontology through the sensor during the process of the first space transformation operation.

In the projection verification device provided by the present disclosure, the verification code providing module provides the projection verification code including the virtual illumination point, the projected ontology three-dimensional graphics and the projected reference two-dimensional graphics, and the operation receiving module operates the first spatial operation on the projected ontology three-dimensional graphics. Obtain the projection target two-dimensional figure under the virtual light point, and the feature extraction module can extract the projection operation feature of the first spatial transformation operation under the condition that the projection target two-dimensional figure and the projection reference two-dimensional figure meet the consistency condition, and then The feature verification module verifies whether the operator is the desired object according to the characteristics of the projection operation; in the above scheme, the projection relationship between the three-dimensional graphics and the two-dimensional graphics is constructed based on the virtual light point, and the operator's spatial transformation operation is performed based on the projection relationship. Feature extraction and verification, because the shape and position of 3D graphics and virtual light points are not constrained, and the difficulty of 3D graphics recognition is significantly higher than that of flat graphics, which effectively improves the difficulty of verification code recognition, increases attack costs, and avoids text recognition. , object classification, mathematical calculation and other verification codes are easy to be identified and cracked, which further fully guarantees the security of the network environment.

The projection verification apparatus provided by the embodiments of the present disclosure can implement the various processes implemented by the method embodiments of FIGS. 1 to 6 , which are not repeated here to avoid repetition.

FIG. 8 is a schematic structural diagram of an electronic device 800 according to an embodiment of the present disclosure. As shown in FIG. 8 , the electronic device 800 may include a processor 801 and a memory 802 , which are stored in the memory 802 and run on the processor 801 When the program or instruction is executed by the processor 801, each process of the above-mentioned projection verification embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

It should be noted that the electronic device 800 shown in FIG. 8 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present disclosure.

FIG. 9 is a schematic hardware diagram of an electronic device 900 provided by an embodiment of the present disclosure. As shown in FIG. 9 , the electronic device 900 includes a central processing unit (Central Processing Unit, CPU) 901, which can be stored in a ROM (ReadOnly Memory, A program in a read-only memory ) 902 or a program loaded from a storage section 908 into a RAM (Random Access Memory) 903 executes various appropriate actions and processes. In the RAM 903, various programs and data necessary for system operation are also stored. The CPU 901 , the ROM 902 , and the RAM 903 are connected to each other through a bus 904 . An I/O (Input/Output) interface 905 is also connected to the bus 904 .

The following components are connected to the I/O interface 905: an input section 906 including a keyboard, a mouse, etc.; an output section 907 including a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), etc., and a speaker, etc. ; a storage section 908 including a hard disk and the like; and a communication section 909 including a network interface card such as a LAN (Local Area Network, wireless network) card, a modem, and the like. The communication section 909 performs communication processing via a network such as the Internet. A drive 910 is also connected to the I/O interface 905 as needed. A removable medium 911, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive 910 as needed so that a computer program read therefrom is installed into the storage section 908 as needed.

In particular, according to embodiments of the present disclosure, the processes described below with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the method illustrated in the flowchart. In such an embodiment, the computer program may be downloaded and installed from the network via the communication portion 909, and/or installed from the removable medium 911. When the computer program is executed by the central processing unit (CPU 901 ), various functions defined in the system of the present application are executed.

Embodiments of the present disclosure further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, each process of the above-mentioned projection verification embodiment can be realized, and the same technical effect can be achieved. , in order to avoid repetition, it will not be repeated here.

The processor is the processor in the electronic device in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as ROM, RAM, magnetic disk or optical disk.

An embodiment of the present disclosure further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used for running programs or instructions, implementing the various processes of the above-mentioned projection verification embodiments, and can achieve the same technology The effect, in order to avoid repetition, is not repeated here.

It should be understood that the chip mentioned in the embodiments of the present disclosure may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.

The embodiments of the present disclosure provide a computer program product including instructions, which, when running on a computer, enables the computer to perform the above-mentioned projection verification steps, and can achieve the same technical effect. To avoid repetition, details are not repeated here. .

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it is noted that the scope of the methods and apparatus in the embodiments of the present disclosure is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order, depending on the functions involved To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present disclosure essentially or the parts that contribute to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, an electronic device, an air conditioner, or a network device, etc.) execute the methods of the various embodiments of the present disclosure.

The embodiments of the present disclosure have been described above in conjunction with the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present disclosure, without departing from the scope of the present disclosure and the protection scope of the claims, many forms can be made, which all fall within the protection of the present disclosure.

Claims (10)

1. A projection verification method, the method comprising:

providing a projection verification code, wherein the projection verification code comprises a virtual illumination point, a projection body three-dimensional graph and a projection reference two-dimensional graph;

receiving a first space transformation operation on the three-dimensional graph of the projection body, and acquiring a projection target two-dimensional graph corresponding to the three-dimensional graph of the projection body under the virtual illumination point;

under the condition that the projection target two-dimensional graph and the projection reference two-dimensional graph accord with consistency conditions, extracting projection operation features based on the first spatial transformation operation;

and performing projection verification according to the projection operation characteristics.

2. The method of claim 1, wherein providing the projected validation code comprises:

acquiring the three-dimensional graph of the projection body from a three-dimensional graph library, wherein the three-dimensional graph library comprises more than one different three-dimensional graph;

generating the virtual illumination point, and acquiring the projection reference two-dimensional graph corresponding to the projection body three-dimensional graph under the virtual illumination point;

constructing a reference mapping sequence of the projection body three-dimensional graph and the projection reference two-dimensional graph;

performing a second spatial transformation operation on the three-dimensional graph of the projection body;

rendering the virtual illumination point, the projection reference two-dimensional graph and the projection body three-dimensional graph after the second space transformation operation to a user interface, and providing a projection verification code.

3. The method of claim 2, wherein the constructing a reference mapping sequence of the projected ontology three-dimensional graph and the projected reference two-dimensional graph comprises:

acquiring a reference three-dimensional coordinate of the projection body three-dimensional graph and a reference two-dimensional coordinate of the projection reference two-dimensional graph;

and mapping the reference three-dimensional coordinate and the reference two-dimensional coordinate to obtain a reference mapping sequence of the projection body three-dimensional graph and the projection reference two-dimensional graph.

4. The method according to claim 1, wherein a reference mapping sequence exists between the projection ontology three-dimensional graph and the projection reference two-dimensional graph, the projection operation features comprise a target mapping sequence, and the extracting the projection operation features based on the first spatial transformation operation comprises:

constructing a target mapping sequence corresponding to the three-dimensional graph of the projection body and the two-dimensional graph of the projection target after the first space transformation operation;

the projection verification according to the projection operation characteristics comprises:

and carrying out error check on the target mapping sequence and the reference mapping sequence, and carrying out projection verification according to a check result.

5. The method according to claim 4, wherein the constructing of the target mapping sequence in which the three-dimensional graph of the projection ontology corresponds to the two-dimensional graph of the projection target after the first spatial transformation operation comprises:

acquiring a target three-dimensional coordinate of the projection body three-dimensional graph and a target two-dimensional coordinate of the projection target two-dimensional graph after the first space transformation operation;

and mapping the target three-dimensional coordinates and the target two-dimensional coordinates to obtain a target mapping sequence of the projection body three-dimensional graph and the projection target two-dimensional graph after the space operation.

6. The method of claim 4, wherein said extracting projection operation features based on said first spatial transformation operation comprises:

acquiring a transformation track of the three-dimensional graph of the projection body in the first space transformation operation process;

the projection verification according to the projection operation characteristics comprises:

and performing behavior analysis on the transformation track, and performing projection verification according to an analysis result.

7. The method of claim 6, wherein said acquiring a transformation trajectory of the three-dimensional graph of the projected ontology during the first spatial transformation operation comprises:

and acquiring a transformation track of the three-dimensional graph of the projection body through a sensor in the process of the first space transformation operation.

8. A projection verification apparatus, the apparatus comprising:

the verification code providing module is used for providing a projection verification code, and the projection verification code comprises a virtual illumination point, a projection body three-dimensional graph and a projection reference two-dimensional graph;

the operation receiving module is used for receiving a first space transformation operation on the three-dimensional graph of the projection body and acquiring a projection target two-dimensional graph corresponding to the three-dimensional graph of the projection body under the virtual illumination point;

the characteristic extraction module is used for extracting projection operation characteristics based on the first space transformation operation under the condition that the projection target two-dimensional graph and the projection reference two-dimensional graph accord with consistency conditions;

and the characteristic verification module is used for performing projection verification according to the projection operation characteristics.

9. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the projection verification method of any of claims 1-7 via execution of the executable instructions.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the projection verification method according to any one of claims 1 to 7.

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