CN112000964A - Data encryption method, system, medium and device based on dynamic coordinates and algorithm - Google Patents
Data encryption method, system, medium and device based on dynamic coordinates and algorithm Download PDFInfo
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Abstract
The invention provides a data encryption method, a system, a medium and a device based on dynamic coordinates and an algorithm, comprising the following steps: the method comprises the steps that the server side generates M pictures, each picture is cut into N areas according to a preset cutting mode, a coordinate system is established for each picture, and first coordinates of each area relative to a first coordinate system are generated; setting an encryption algorithm and a key pair for each picture; generating an index of each picture; receiving a picture request sent by a client, and sending an encryption algorithm and a key pair corresponding to the selected picture, the selected picture information and the index to the client; receiving a ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; and decrypting the ciphertext character string to obtain a second coordinate, obtaining a first coordinate based on the second coordinate and the initial bit of the soft keyboard, and obtaining a character corresponding to the first coordinate. The invention is used for ensuring strong safety protection of data, and simultaneously, an encryption algorithm combination mode can be selected to meet actual requirements.
Description
Technical Field
The invention relates to the technical field of mobile internet, in particular to a data encryption method, a system, a medium and a device based on dynamic coordinates and an algorithm.
Background
At present, on a PC end and a mobile end, a user password is still used as the most important user identity authentication important means, and a common password input box cannot prevent Trojan programs, malicious codes, HOOK, keyboard recorders, network communication monitoring and the like from stealing user privacy data.
Therefore, it is desirable to solve the problem of how to better protect data when a user inputs a password.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a data encryption method, system, medium and apparatus based on dynamic coordinates and algorithm, which is used to solve the problem of how to better protect data when a user inputs a password in the prior art.
To achieve the above and other related objects, the present invention provides a data encryption method based on dynamic coordinates and an algorithm, comprising the steps of: the method comprises the steps that the server side generates M pictures, each picture is cut into N areas according to a preset cutting mode, a first coordinate system is established for each picture, first coordinates of each area relative to the first coordinate system are generated, and characters correspond to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture; the client sends a picture request to the server; the server receives a picture request sent by the client, randomly selects a picture, and sends an encryption algorithm and a key pair corresponding to the selected picture, the selected picture information and an index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode; the client side cuts the selected picture into N areas according to a preset cutting mode, a second coordinate system is established for the selected picture, a second coordinate of each area relative to the second coordinate system is generated, characters are generated to correspond to the second coordinates one by one on the basis of the index of the selected picture, soft keyboards with the second coordinates corresponding to the areas one by one, and the initial position of the soft keyboards; the client receives an instruction of a user to acquire a second coordinate corresponding to the character; the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the client sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server; the server receives the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
In an embodiment of the present invention, the setting of the encryption algorithm and the key pair for each picture includes: and establishing an encryption algorithm configuration library, and mapping each picture to a group of encryption algorithms and key pairs of the encryption algorithm configuration library.
In order to achieve the above object, the present invention further provides a data encryption system based on dynamic coordinates and an algorithm, including: a server and a client; the server generates M pictures, cuts each picture into N areas according to a preset cutting mode, establishes a first coordinate system for each picture, generates a first coordinate of each area relative to the first coordinate system, and corresponds characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture; the client sends a picture request to the server; the server receives a picture request sent by a client, randomly selects a picture, and sends an encryption algorithm and a key pair corresponding to the selected picture to the client, the selected picture information and an index are sent to the client, and the selected picture information comprises the selected picture and a preset cutting mode; the client side cuts the selected picture into N areas according to a preset cutting mode, a second coordinate system is established for the selected picture, a second coordinate of each area relative to the second coordinate system is generated, characters are generated to correspond to the second coordinates one by one on the basis of the index of the selected picture, soft keyboards with the second coordinates corresponding to the areas one by one, and the initial position of the soft keyboards; the client receives an instruction of a user to acquire a second coordinate corresponding to the character; the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the client sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server; the server receives the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
In order to achieve the above object, the present invention further provides a data encryption method based on dynamic coordinates and an algorithm, which is applied to a server and comprises the following steps: generating M pictures, cutting each picture into N areas according to a preset cutting mode, establishing a first coordinate system for each picture, generating a first coordinate of each area relative to the first coordinate system, and corresponding characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture; receiving a picture request sent by a client, randomly selecting a picture, and sending an encryption algorithm and a key pair corresponding to the selected picture to the client, wherein the selected picture information and an index are sent to the client, and the selected picture information comprises the selected picture and a preset cutting mode; receiving a ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
In order to achieve the above object, the present invention further provides a data encryption system based on dynamic coordinates and an algorithm, including: the device comprises a generating module, a picture sending module and a decryption module; the generating module is used for generating M pictures, cutting each picture into N areas according to a preset cutting mode, establishing a first coordinate system for each picture, generating a first coordinate of each area relative to the first coordinate system, and enabling characters to correspond to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture; the picture sending module is used for receiving a picture request sent by a client, randomly selecting a picture, sending the selected picture information and an index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode, and an encryption algorithm and a key pair corresponding to the selected picture; the decryption module is used for receiving the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
To achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above dynamic coordinate and algorithm-based data encryption methods.
In order to achieve the above object, the present invention further provides a data encryption apparatus based on dynamic coordinates and an algorithm, including: a processor and a memory; the memory is used for storing a computer program; the processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the data encryption device based on the dynamic coordinate and the algorithm to execute any one of the data encryption methods based on the dynamic coordinate and the algorithm.
In order to achieve the above object, the present invention further provides a data encryption method based on dynamic coordinates and an algorithm, which is applied to a client, and comprises the following steps: sending a picture request to a server; cutting the selected picture into N areas according to a preset cutting mode, establishing a second coordinate system for the selected picture, generating a second coordinate of each area relative to the second coordinate system, generating a soft keyboard with characters corresponding to the second coordinates one by one on the basis of the index of the selected picture, and generating an initial position of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; and sending the sent ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to a server side.
In order to achieve the above object, the present invention further provides a data encryption system based on dynamic coordinates and an algorithm, including: the system comprises a request sending module, an encryption module and a ciphertext sending module; the sending request module is used for sending a picture request to the server; the encryption module is used for cutting the selected picture into N areas according to a preset cutting mode, establishing a second coordinate system for the selected picture, generating a second coordinate of each area relative to the second coordinate system, and generating a soft keyboard with characters corresponding to the second coordinates one by one on the basis of the index of the selected picture, wherein the second coordinates correspond to the soft keyboard one by one with each area, and the initial position of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; and the ciphertext sending module is used for sending the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to a server side.
In order to achieve the above object, the present invention further provides a data encryption apparatus based on dynamic coordinates and an algorithm, including: a processor and a memory; the memory is used for storing a computer program; the processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the data encryption device based on the dynamic coordinate and the algorithm to execute any one of the data encryption methods based on the dynamic coordinate and the algorithm.
As described above, the data encryption method, system, medium and apparatus based on dynamic coordinates and algorithm of the present invention have the following advantages: the method is used for ensuring strong safety protection of data, and simultaneously, an encryption algorithm combination mode can be selected to meet actual requirements.
Drawings
FIG. 1a is a flow chart illustrating a dynamic coordinate and algorithm based data encryption method according to an embodiment of the present invention;
FIG. 1b is a flow chart of a dynamic coordinate and algorithm based data encryption method according to another embodiment of the present invention;
FIG. 2 is a schematic diagram of a dynamic coordinate and algorithm based data encryption system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an embodiment of a dynamic coordinate and algorithm-based data encryption device according to the present invention;
FIG. 4 is a flow chart illustrating a data encryption method based on dynamic coordinates and algorithm according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a data encryption system based on dynamic coordinates and algorithm according to another embodiment of the present invention;
FIG. 6 is a flow chart illustrating a dynamic coordinate and algorithm based data encryption method according to yet another embodiment of the present invention;
FIG. 7 is a schematic diagram of a data encryption system based on dynamic coordinates and algorithm according to another embodiment of the present invention.
Description of the element reference numerals
21 service end
22 client
31 processor
32 memory
51 generating module
52 sending picture module
53 decryption module
71 request sending module
72 encryption module
73 ciphertext sending module
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The data encryption method, system, medium and device based on the dynamic coordinates and the algorithm are used for ensuring strong safety protection of data, and meanwhile, an encryption algorithm combination mode can be selected to meet actual requirements.
As shown in fig. 1a, in an embodiment, the data encryption method based on dynamic coordinates and algorithm of the present invention includes the following steps:
step S11, the server generates M pictures, cuts each picture into N areas according to a preset cutting mode, establishes a first coordinate system for each picture, generates a first coordinate of each area relative to the first coordinate system, and corresponds characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, the corresponding encryption algorithm and key pair, and the identification information of the picture are the index of the picture.
In an embodiment of the invention, the number of the M pictures can be set according to a level required to be kept secret. The letter M here indicates that the number of pictures can be set according to the requirement. The cutting of each picture into N regions according to a preset cutting mode means that the picture can be cut into regions of any number of parts, and if any number between 0 and 9 is required to be input, the picture can be cut into 10 regions to respectively correspond to the numbers 0 to 9. The establishing of the coordinate system for each picture and the generation of the first coordinate of each area relative to the first coordinate system refer to establishing the first coordinate system for each picture according to a preset coordinate system setting mode. The first coordinate system is a two-dimensional coordinate system. Generating the first coordinate of each region with respect to the first coordinate system refers to generating the first coordinate of each region with respect to the first coordinate system according to a preset coordinate generation rule, for example, the coordinate generation rule is to generate the first coordinate of each region with respect to the first coordinate system by using the coordinate of the center of each region as the first coordinate. Of course, the coordinate generation rule may also generate the first coordinate of each area with respect to the first coordinate system by using the coordinate of any one designated point of each area as the first coordinate. The designated point includes, but is not limited to, a corner of each of the regions, such as the upper left corner, the upper right corner, the lower left corner, and the lower right corner. The character corresponds to the first coordinate one by one, namely, each first coordinate corresponds to one character, so that the character, the coordinate and the area can be in one-to-one correspondence based on the one-to-one correspondence of the character and the first coordinate and the one-to-one correspondence of each area and the first coordinate. Setting an encryption algorithm and a key pair for each picture, wherein the setting of the encryption algorithm and the key pair for each picture comprises the following steps: and establishing an encryption algorithm configuration library, and mapping each picture to a group of encryption algorithms and key pairs of the encryption algorithm configuration library. The corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, the corresponding encryption algorithm and key pair, and the identification information of the picture are the index of the picture. Namely, the pictures can be identified according to the index of the pictures, and the corresponding encryption algorithm and key pair of each picture are known, so that the corresponding relation between each area of each picture and the first coordinate and the corresponding relation between the characters and the first coordinate are known. The characters are characters which the client needs to input, and include but are not limited to: english letters, numbers, Chinese characters and symbols.
And step S12, the client sends a picture request to the server.
In an embodiment of the present invention, the client includes but is not limited to: a PC side and a mobile side. And when the client needs to input an instruction and a password, sending a picture request to the server.
Step S13, the server receives the picture request sent by the client, randomly selects a picture, and sends the encryption algorithm and the key pair corresponding to the selected picture, the selected picture information and the index to the client, where the selected picture information includes the selected picture and a preset cutting mode.
Step S14, the client cuts the selected picture into N areas according to a preset cutting mode, establishes a second coordinate system for the selected picture, generates a second coordinate of each area relative to the second coordinate system, and generates a soft keyboard with characters corresponding to the second coordinate one by one based on the index of the selected picture, and the initial position of the soft keyboard; the client receives an instruction of a user to acquire a second coordinate corresponding to the character; and the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string.
In an embodiment of the present invention, the establishing the second coordinate system for the selected picture refers to establishing the second coordinate system for the selected picture according to a preset coordinate system setting manner. The second coordinate system is a two-dimensional coordinate system. The generating of the second coordinate of each region with respect to the second coordinate system refers to generating the second coordinate of each region with respect to the second coordinate system according to a preset coordinate generation rule, for example, the coordinate generation rule is to generate the second coordinate of each region with respect to the second coordinate system by using the coordinate of the center of each region as the second coordinate. Of course, the coordinate generation rule may also generate the second coordinate of each area with respect to the second coordinate system by using the coordinate of any one designated point of each area as the second coordinate. The designated point includes, but is not limited to, a corner of each of the regions, such as the upper left corner, the upper right corner, the lower left corner, and the lower right corner. The character corresponds to the second coordinate one by one, namely, each second coordinate corresponds to one character, so that the one-to-one correspondence of the character, the coordinate and the area can be realized based on the one-to-one correspondence of the character and the second coordinate and the one-to-one correspondence of each area and the second coordinate. And generating a soft keyboard with characters corresponding to the second coordinates one by one based on the index of the selected picture, wherein the soft keyboard with the second coordinates corresponding to each area one by one means that after the characters correspond to the second coordinates one by one, the one-to-one correspondence of the characters, the areas and the second coordinates can be realized, and the soft keyboard with the characters corresponding to the areas one by one is generated. The initial position of the soft keyboard refers to the initial position of a second coordinate system when the second coordinate system is established for the selected picture according to a preset coordinate system setting mode, because although a first coordinate system is established for each picture, the second coordinate system is also established for the selected picture, but the two coordinate systems are not completely overlapped, the initial position of the soft keyboard is used for facilitating calculation when the first coordinate system and the second coordinate system are converted. The initial position of the soft keyboard is the position offset of the second coordinate system relative to the first coordinate system. The client receives a user instruction to acquire the second coordinate corresponding to the character, where the client is used to receive the user instruction through a display input device, for example, a touch screen display soft keyboard, and is used to receive the user instruction to acquire the second coordinate corresponding to the character. Namely, the user clicks the area where the characters on the soft keyboard displayed by the touch screen are located, and then the second coordinates corresponding to the characters are obtained. And the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string. The second coordinate (group) is encrypted into a ciphertext string (encgorup) according to an agreed encryption algorithm and key pair.
Step S15, the client sends the ciphertext character string, the index of the selected picture, and the initial bit of the soft keyboard to the server.
In an embodiment of the present invention, after the user issues the confirmation instruction, the client sends the ciphertext character string, the index of the selected picture, and the initial bit of the soft keyboard to the server.
Step S16, the server receives the ciphertext character string sent by the client, the index of the selected picture, and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
In an embodiment of the present invention, as shown in fig. 1b, the server generates M pictures, cuts each picture into N regions according to a preset cutting manner, establishes a first coordinate system for each picture, generates a first coordinate of each region with respect to the first coordinate system, and corresponds the characters to the first coordinates one by one. And setting an encryption algorithm and a key pair for each picture. The corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, the corresponding encryption algorithm and key pair, and the identification information of the picture are the index of the picture.
The client sends a picture request (random factor) to the server.
The server receives a picture request sent by the client, randomly selects a picture, sends an encryption algorithm and a key pair corresponding to the selected picture to the client, and sends the selected picture information and the index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode.
The client side cuts the selected picture into N areas according to a preset cutting mode, a second coordinate system is established for the selected picture, a second coordinate of each area relative to the second coordinate system is generated, characters are generated to correspond to the second coordinates one by one on the basis of the index of the selected picture, soft keyboards with the second coordinates corresponding to the areas one by one, and the initial position of the soft keyboards.
And the client receives an instruction of a user to acquire a second coordinate corresponding to the character.
And the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string.
And the client sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server.
The server receives the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
As shown in fig. 2, in an embodiment, the data encryption system based on dynamic coordinates and algorithm of the present invention includes: a server 21 and a client 22; the server 21 generates M pictures, cuts each picture into N areas according to a preset cutting mode, establishes a first coordinate system for each picture, generates a first coordinate of each area relative to the first coordinate system, and corresponds characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture; the client 22 sends a picture request to the server 21; the server 21 receives a picture request sent by the client 22, randomly selects a picture, and sends an encryption algorithm and a key pair corresponding to the selected picture, the selected picture information and an index to the client 22, wherein the selected picture information comprises the selected picture and a preset cutting mode; the client 22 cuts the selected picture into N areas according to a preset cutting mode, establishes a second coordinate system for the selected picture, generates a second coordinate of each area relative to the second coordinate system, and generates a soft keyboard with characters corresponding to the second coordinates one by one based on the index of the selected picture, and the initial position of the soft keyboard; the client 22 receives an instruction of a user to acquire a second coordinate corresponding to the character; the client 22 encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the client 22 sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server 21; the server 21 receives the ciphertext character string sent by the client 22, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
As shown in fig. 4, in an embodiment, the data encryption method based on dynamic coordinates and algorithm of the present invention is applied to a server, and includes the following steps:
s41, generating M pictures, cutting each picture into N areas according to a preset cutting mode, establishing a first coordinate system for each picture, generating a first coordinate of each area relative to the first coordinate system, and corresponding characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
step S42, receiving a picture request sent by a client, randomly selecting a picture, sending the selected picture information and an index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode, and an encryption algorithm and a key pair corresponding to the selected picture;
step S43, receiving the ciphertext character string sent by the client, the index of the selected picture and the initial position of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
As shown in fig. 5, in an embodiment, the data encryption system based on dynamic coordinates and algorithm of the present invention includes: a generation module 51, a transmission picture module 52 and a decryption module 53;
the generating module 51 is configured to generate M pictures, cut each picture into N regions according to a preset cutting manner, establish a first coordinate system for each picture, generate a first coordinate of each region with respect to the first coordinate system, and correspond characters to the first coordinates one to one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
the picture sending module 52 is configured to receive a picture request sent by a client, randomly select a picture, send an encryption algorithm and a key pair corresponding to the selected picture to the client, send the selected picture information and an index to the client, where the selected picture information includes the selected picture and a preset cutting mode;
the decryption module 53 is configured to receive a ciphertext character string sent by the client, an index of the selected picture, and an initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
It should be noted that the structures and principles of the generating module 51, the sending picture module 52, and the decrypting module 53 correspond to the steps in the frequency offset estimation method of the communication signal one by one, and therefore are not described herein again.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the x module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Specific Integrated circuits (ASICs), or one or more Microprocessors (MPUs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
In an embodiment of the present invention, the present invention further includes a computer readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement any of the above data encryption methods based on dynamic coordinates and algorithms.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
As shown in fig. 3, in an embodiment, the data encryption apparatus based on dynamic coordinates and algorithm of the present invention includes: a processor 31 and a memory 32; the memory 32 is for storing a computer program; the processor 31 is connected to the memory 32, and is configured to execute the computer program stored in the memory 32, so that the data encryption apparatus based on dynamic coordinates and algorithm executes any one of the data encryption methods based on dynamic coordinates and algorithm.
Specifically, the memory 32 includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
Preferably, the Processor 31 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
As shown in fig. 6, in an embodiment, the data encryption method based on dynamic coordinates and algorithm of the present invention is applied to a client, and includes the following steps:
step S61, sending a picture request to a server;
step S62, cutting the selected picture into N areas according to a preset cutting mode, establishing a second coordinate system for the selected picture, generating a second coordinate of each area relative to the second coordinate system, generating a soft keyboard with characters corresponding to the second coordinates one by one based on the index of the selected picture, and generating an initial position of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string;
and S63, sending the ciphertext character string, the index of the selected picture and the initial position of the soft keyboard to a server.
As shown in fig. 7, in an embodiment, the data encryption system based on dynamic coordinates and algorithm of the present invention includes: a transmission request module 71, an encryption module 72 and a ciphertext transmission module 73; the sending request module 71 is configured to send a picture request to a server; the encryption module 72 is configured to cut the selected picture into N regions according to a preset cutting manner, establish a second coordinate system for the selected picture, generate a second coordinate of each region with respect to the second coordinate system, and generate a soft keyboard with characters corresponding to the second coordinates one to one based on an index of the selected picture, where the second coordinates correspond to each region one to one, and an initial bit of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the ciphertext module 73 is configured to send the ciphertext character string, the index of the selected picture, and the initial bit of the soft keyboard to the server.
As shown in fig. 3, in an embodiment, the data encryption apparatus based on dynamic coordinates and algorithm of the present invention includes: a processor 31 and a memory 32; the memory 32 is for storing a computer program; the processor 31 is connected to the memory 32, and is configured to execute the computer program stored in the memory 32, so that the data encryption apparatus based on dynamic coordinates and algorithm executes any one of the data encryption methods based on dynamic coordinates and algorithm.
Specifically, the memory 32 includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
Preferably, the Processor 31 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
In summary, the data encryption method, system, medium and apparatus based on dynamic coordinates and algorithms of the present invention are used to ensure strong security protection of data, and simultaneously, the combination of encryption algorithms can be selected to meet the actual requirements. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A data encryption method based on dynamic coordinates and an algorithm is characterized by comprising the following steps:
the method comprises the steps that the server side generates M pictures, each picture is cut into N areas according to a preset cutting mode, a first coordinate system is established for each picture, first coordinates of each area relative to the first coordinate system are generated, and characters correspond to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
the client sends a picture request to the server;
the server receives a picture request sent by the client, randomly selects a picture, and sends an encryption algorithm and a key pair corresponding to the selected picture, the selected picture information and an index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode;
the client side cuts the selected picture into N areas according to a preset cutting mode, a second coordinate system is established for the selected picture, a second coordinate of each area relative to the second coordinate system is generated, characters are generated to correspond to the second coordinates one by one on the basis of the index of the selected picture, soft keyboards with the second coordinates corresponding to the areas one by one, and the initial position of the soft keyboards; the client receives an instruction of a user to acquire a second coordinate corresponding to the character; the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the client sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server;
the server receives the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
2. A data encryption method based on dynamic coordinates and an algorithm is characterized in that the setting of an encryption algorithm and a key pair for each picture comprises the following steps: and establishing an encryption algorithm configuration library, and mapping each picture to a group of encryption algorithms and key pairs of the encryption algorithm configuration library.
3. A data encryption system based on dynamic coordinates and an algorithm, comprising: a server and a client;
the server generates M pictures, cuts each picture into N areas according to a preset cutting mode, establishes a first coordinate system for each picture, generates a first coordinate of each area relative to the first coordinate system, and corresponds characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
the client sends a picture request to the server;
the server receives a picture request sent by a client, randomly selects a picture, and sends an encryption algorithm and a key pair corresponding to the selected picture to the client, the selected picture information and an index are sent to the client, and the selected picture information comprises the selected picture and a preset cutting mode;
the client side cuts the selected picture into N areas according to a preset cutting mode, a second coordinate system is established for the selected picture, a second coordinate of each area relative to the second coordinate system is generated, characters are generated to correspond to the second coordinates one by one on the basis of the index of the selected picture, soft keyboards with the second coordinates corresponding to the areas one by one, and the initial position of the soft keyboards; the client receives an instruction of a user to acquire a second coordinate corresponding to the character; the client encrypts the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string; the client sends the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to the server;
the server receives the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
4. A data encryption method based on dynamic coordinates and an algorithm is characterized in that the method is applied to a server and comprises the following steps:
generating M pictures, cutting each picture into N areas according to a preset cutting mode, establishing a first coordinate system for each picture, generating a first coordinate of each area relative to the first coordinate system, and corresponding characters to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
receiving a picture request sent by a client, randomly selecting a picture, and sending an encryption algorithm and a key pair corresponding to the selected picture to the client, wherein the selected picture information and an index are sent to the client, and the selected picture information comprises the selected picture and a preset cutting mode;
receiving a ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
5. A data encryption system based on dynamic coordinates and an algorithm, comprising: the device comprises a generating module, a picture sending module and a decryption module;
the generating module is used for generating M pictures, cutting each picture into N areas according to a preset cutting mode, establishing a first coordinate system for each picture, generating a first coordinate of each area relative to the first coordinate system, and enabling characters to correspond to the first coordinates one by one; setting an encryption algorithm and a key pair for each picture; the corresponding relation between each area of each picture and the first coordinate, the corresponding relation between characters and the first coordinate, a corresponding encryption algorithm and a corresponding key pair, and the identification information of the picture are indexes of the picture;
the picture sending module is used for receiving a picture request sent by a client, randomly selecting a picture, sending the selected picture information and an index to the client, wherein the selected picture information comprises the selected picture and a preset cutting mode, and an encryption algorithm and a key pair corresponding to the selected picture;
the decryption module is used for receiving the ciphertext character string sent by the client, the index of the selected picture and the initial bit of the soft keyboard; the method comprises the steps of obtaining a corresponding selected picture based on an index of the selected picture, obtaining an encryption algorithm and a key pair corresponding to the selected picture based on mapping of the selected picture, decrypting a ciphertext character string based on the encryption algorithm and the key pair, obtaining a second coordinate, obtaining a first coordinate based on the second coordinate and an initial bit of a soft keyboard, and obtaining a character corresponding to the first coordinate based on the index of the selected picture.
6. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the dynamic coordinate and algorithm-based data encryption method of claim 4.
7. A data encryption apparatus based on dynamic coordinates and an algorithm, comprising: a processor and a memory; the memory is used for storing a computer program; the processor is coupled to the memory and configured to execute the computer program stored in the memory to cause the dynamic coordinate and algorithm based data encryption device to perform the dynamic coordinate and algorithm based data encryption method of claim 4.
8. A data encryption method based on dynamic coordinates and an algorithm is characterized in that the method is applied to a client and comprises the following steps:
sending a picture request to a server;
cutting the selected picture into N areas according to a preset cutting mode, establishing a second coordinate system for the selected picture, generating a second coordinate of each area relative to the second coordinate system, generating a soft keyboard with characters corresponding to the second coordinates one by one on the basis of the index of the selected picture, and generating an initial position of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string;
and sending the sent ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to a server side.
9. A data encryption system based on dynamic coordinates and an algorithm, comprising: the system comprises a request sending module, an encryption module and a ciphertext sending module;
the sending request module is used for sending a picture request to the server;
the encryption module is used for cutting the selected picture into N areas according to a preset cutting mode, establishing a second coordinate system for the selected picture, generating a second coordinate of each area relative to the second coordinate system, and generating a soft keyboard with characters corresponding to the second coordinates one by one on the basis of the index of the selected picture, wherein the second coordinates correspond to the soft keyboard one by one with each area, and the initial position of the soft keyboard; receiving an instruction of a user to acquire a second coordinate corresponding to the character; encrypting the second coordinate according to the encryption algorithm and the key corresponding to the selected picture to obtain a ciphertext character string;
and the ciphertext sending module is used for sending the ciphertext character string, the index of the selected picture and the initial bit of the soft keyboard to a server side.
10. A data encryption apparatus based on dynamic coordinates and an algorithm, comprising: a processor and a memory;
the memory is used for storing a computer program;
the processor is coupled to the memory and configured to execute the computer program stored in the memory to cause the dynamic coordinate and algorithm based data encryption device to perform the dynamic coordinate and algorithm based data encryption method of any one of claim 8.
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