WO2019071513A1 - Data encryption method and data encryption system for intelligent terminal - Google Patents

Abstract

Provided are a data encryption method and data encryption system for an intelligent terminal. The data encryption method comprises the following steps: starting a data encryption system; locking a target file to be encrypted; starting an electronic map associated with the data encryption system; locking the electronic map to a target precision layer; under the target precision layer, capturing an operational instruction, and locking an unlocking position in the electronic map according to the operational instruction; and by using the unlocking position as an unlocking password, performing encryption processing on the target file, and converting the target file into a target ciphertext and storing same in a storage space of the intelligent terminal. By associating a data encryption system with an electronic map, and using a geographical position as an unlocking password of a data file, the data file can be decrypted by carrying an intelligent terminal to a specific unlocking position or utilizing the electronic map to modulate the unlocking position again.

Description

Data encryption method and data encryption system for intelligent terminal Technical field

The invention relates to the field of encryption technology of an intelligent terminal, in particular to a data encryption method and a data encryption system of an intelligent terminal.

Background technique

With the expansion of the application field of smart terminals, the privacy protection of smart terminals is increasingly valued by users. With the expansion of the application fields of smart terminals, the privacy protection of smart terminals is increasingly valued by users. However, at present, the encryption methods of files and the like in smart terminals on the market are still limited to encryption methods such as numbers, characters, letters, pattern encryption or fingerprints. Encrypted passwords consisting of numbers, characters, letters, etc. are cumbersome, which increases the difficulty of the user's memory; while fingerprints and other encryption methods rely on the integrity of the user's fingerprints, when the user affects the shape of the fingerprint due to trauma, etc., Decryption of files and the like that affect the smart terminal.

Summary of the invention

To solve the above problems, the present invention provides a data encryption method and a data encryption system for an intelligent terminal. The invention provides a data encryption method and a data encryption system for encrypting data files by using an electronic map, which associates a data encryption system with an electronic map, and uses a geographical location as an unlocking password of the data file, thereby being able to arrive by carrying the intelligent terminal. The data file is decrypted by specifically unlocking the location or by modulating the unlocked location with the electronic map.

Specifically, the present invention provides a data encryption method for an intelligent terminal, comprising the steps of: starting a data encryption system; locking an object file to be encrypted; initiating an electronic map associated with the data encryption system; The map is locked to a target precision layer; under the target precision layer, an operation instruction is captured, and an unlocked position is locked in the electronic map according to the operation instruction; and the unlocked position is an unlock password, The target file is encrypted, and the target file is converted into a target ciphertext and stored in a storage space of the smart terminal.

Preferably, under the target precision layer, capturing an operation instruction, and locking an unlocking position in the electronic map includes: capturing an operation instruction under the target precision layer, and selecting according to the operation instruction Determining an unlocked position in the electronic map, reading position information of the unlocked position in the electronic map, and obtaining an unlocking Location information and sent out.

Preferably, the step of encrypting the target file by using the unlocking position as an unlocking key comprises: setting an error value, and calculating a circle centering on the unlocking position information and the error value is a radius Position information of each point in the shape, and an unlock data list is created by using the position information of each point in the circular area, and the location information of each point in the unlock list is used as an unlocking key, and an encryption operation is performed. Converting the target file into a target ciphertext, and storing the target ciphertext in a storage space of the smart terminal.

Preferably, the step of decrypting the target file includes capturing current geographic location information of the smart terminal, comparing the current geographic location information with the unlocked location, when the current geographic location information and the When the unlocking position is matched, the target file is decrypted, and the target file is converted from ciphertext to plaintext.

Preferably, the step of decrypting the target file further includes: capturing an operation instruction, selecting a first unlocking position in the electronic map, and comparing the first unlocking position with the unlocking position; When the first unlocking position matches the unlocking position, the target file is decrypted, and the target file is converted from ciphertext to plaintext.

Another aspect of the present invention provides a data encryption system for an intelligent terminal, which includes the following modules, a system control module, and a data encryption system; a target selection module that locks an object file to be encrypted; and an electronic map control module that initiates an An electronic map associated with the data encryption system; an accuracy adjustment module that locks the electronic map to a target accuracy layer; the first positioning module captures an operation instruction, and locks in the electronic map according to the operation instruction An unlocking location, wherein the unlocking password is an unlocking password, and the target file is encrypted, and the target file is converted into a target ciphertext and stored in a storage space of the smart terminal.

Preferably, the first positioning module includes: a first instruction unit, capturing an operation instruction, and a first positioning unit, according to the operation instruction, selecting an unlocking position in the electronic map, the information identifying unit, and reading the location The location information of the unlocked location in the electronic map is obtained, and an unlocked location information is obtained and sent out.

Preferably, the encryption module includes: a second instruction unit that captures an operation instruction, acquires an error value, and the data processing unit calculates a circular area centered on the unlock position information and the error value is a radius. The location information of each point in the data, the data statistics unit, establishes an unlock data list by using the location information of each point in the circle, and the encryption unit uses the location information of each point in the unlock list as the unlocking key. And performing an encryption operation, converting the target file into a target ciphertext, and storing, by the storage unit, the target ciphertext in a storage space of the smart terminal.

Preferably, the data encryption system further includes: a second positioning module that captures current geographic location information of the smart terminal, and a first verification module that compares the current geographic location information with the unlocked location, first Decrypt And when the current geographic location information matches the unlocked location, the module decrypts the target file, and converts the target file from ciphertext to plaintext.

Preferably, the data encryption system further includes: an instruction module, capturing an operation instruction, a third positioning module, selecting a first unlocking position in the electronic map, and a second verification module, the first unlocking position The unlocking position is compared, and the second decrypting module decrypts the target file when the first unlocking position matches the unlocking position, and converts the target file from ciphertext to plaintext.

Compared with the prior art, the technical advantages of the present invention are:

1) The present invention provides an encryption method for encrypting data files by using an electronic map, which associates a data encryption system with an electronic map, and uses a geographical location as an unlock password of the data file, thereby being able to reach a specific unlocked position by carrying the smart terminal. Or decrypt the data file by modulating the unlocked location of the electronic map again.

2) The data encryption system of the intelligent terminal provided by the present invention is provided with a system control module, an electronic map control module, a positioning module, etc., and the present invention utilizes the mutual cooperation of the above modules to realize the technical effect of encrypting by using a geographical location, and improving The convenience and effectiveness of data encryption, while avoiding the hassle of calculating passwords cumbersomely.

DRAWINGS

1 is a schematic flow chart of a data encryption method of an intelligent terminal according to a preferred embodiment of the present invention;

2 is a schematic flow chart of a step of locking an unlocking position in an electronic map according to FIG. 1;

3 is a schematic flow chart of the steps of performing encryption processing on the target file in FIG. 1;

4 is a schematic flow chart of a method for decrypting an encrypted file corresponding to FIG. 1;

5 is a schematic flow chart of another decryption method corresponding to the encrypted file in FIG. 1;

6 is a structural diagram of a data encryption system of a smart terminal in accordance with a preferred embodiment of the present invention;

Figure 7 is a structural view of the first positioning module in accordance with Figure 6;

Figure 8 is a structural diagram of the encryption module in accordance with Figure 6;

9 is a structural diagram of a data encryption system in accordance with another preferred smart terminal of the present invention;

Figure 10 is a block diagram of a data encryption system in accordance with another preferred intelligent terminal of the present invention.

Detailed ways

The advantages of the present invention are explained in detail below with reference to the accompanying drawings and specific embodiments.

The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with aspects of the present disclosure as detailed in the appended claims.

First, it should be understood that although the terms first, second, third, etc. may be employed in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first intelligent terminal may also be referred to as a second smart terminal without departing from the scope of the present disclosure. Similarly, the second smart terminal may also be referred to as a first smart terminal.

With the expansion of the application field of smart terminals, the privacy protection of smart terminals is increasingly valued by users. However, at present, the encryption methods of files and the like in smart terminals on the market are still limited to encryption methods such as numbers, characters, letters, pattern encryption or fingerprints. Encrypted passwords consisting of numbers, characters, letters, etc. are cumbersome, which increases the difficulty of the user's memory; while fingerprints and other encryption methods rely on the integrity of the user's fingerprints, when the user affects the shape of the fingerprint due to trauma, etc., Decryption of files and the like that affect the smart terminal.

To overcome the problems existing in the existing smart terminal encryption technology, the present invention provides a data encryption method for an intelligent terminal. Referring to FIG. 1, which is a schematic flowchart of a data encryption method of a smart terminal according to a preferred embodiment of the present invention. It can be seen from the figure that the data encryption method of the intelligent terminal provided by this embodiment mainly includes the following steps:

- Start the data encryption system

In this embodiment, when the user needs to encrypt a certain file data in the smart terminal, the smart terminal may be sent to the smart terminal by touching a shortcut icon of the smart terminal display interface or a text name in the shortcut menu. A start command. The system control module of the intelligent terminal reads an operation instruction issued by the user, and starts the data encryption system of the intelligent terminal according to the startup instruction after parsing.

-Lock the target file to be encrypted

In this embodiment, the smart terminal starts the data encryption system according to a triggering instruction of the user. The user can select the file to be encrypted according to his own needs. In this embodiment, it is called an object file. The target selection module of the smart terminal can read an operation instruction input by the user to the smart terminal, and after parsing, lock the target file to be encrypted selected by the user according to the operation instruction. The target file is maintained in a pending state.

- initiating an electronic map associated with the data encryption system

In this embodiment, the data encryption system of the smart terminal is associated with an electronic map in the smart terminal in advance, that is, the function of the electronic map can be invoked by the data encryption system. Thus, after the smart terminal activates the data encryption system, an electronic map associated with the data encryption system can be initiated by an electronic map control module of the data encryption system.

- Locking the electronic map to a target precision layer

Electronic map (digital map) is a map form that records and stores geographic location information in digital form. The accuracy of an electronic map refers to the resolution of an electronic map, that is, the actual floor area represented by one pixel. The relationship between the resolution of the electronic map and the ground resolution, display scale, and data source scale of the reaction can be seen in the following table:

Electronic map rating

level	Ground resolution (m/pixel)	Display scale	Data source scale
1	78 271.517 0	1:295 829 355.45	1:1 million
2	39 135.758 5	1:147 914 677.73	1:1 million
3	19 567.879 2	1:73 957 338.86	1:1 million
4	9 783.939 6	1:36 978 669.43	1:1 million
5	4 891.969 8	1:18 489 334.72	1:1 million
6	2 445.984 9	1:9 244 667.36	1:1 million
7	1 222.992 5	1:4 622 333.68	1:1 million
8	611.496 2	1:2 311 166.84	1:1 million
9	305.748 1	1:1 155 583.42	1:1 million
10	152.874 1	1:577 791.71	1:1 million
11	76.437 0	1:288 895.85	1:250,000
12	38.218 5	1:144 447.93	1:250,000
13	19.109 3	1:72 223.96	1:50,000
14	9.554 6	1:36 111.98	1:50,000
15	4.777 3	1:18 055.99	1:1 million
16	2.388 7	1:9 028.00	1:1 million
17	1.194 3	1:4 514.00	1:5000 or 1:1 million
18	0.597 2	1:2 257.00	1:2000 or 1:1000
19	0.298 6	1:1 128.5	1:1000 or 1:2000
20	0.149 3	1:564.25	1:500 or 1:1000

As can be seen from the above table, the different resolutions of the electronic map represent different geographical locations. Therefore, in this embodiment, before selecting a specific geographic location in the electronic map, first, the precision layer of the electronic map called by the data encryption system should be locked. Therefore, in this embodiment, the user may input an operation instruction to the smart terminal, and the precision adjustment module of the smart terminal may capture an operation instruction, and after parsing, lock the electronic map according to the operation instruction. To a target precision layer. Thereby, the display scale, the ground resolution, and the like of the electronic map are accordingly locked.

- capturing an operation command under the target precision layer, and locking an unlocked position in the electronic map according to the operation instruction

In this embodiment, after the accuracy layer of the electronic map that is invoked is locked, the user can select an unlocked position for encryption in the electronic map displayed by the smart terminal according to the needs of the user. The smart terminal is further configured with a first positioning module, where the positioning module can capture an operation instruction that triggers the smart terminal by the user, and after parsing the operation instruction, acquire the electronic map according to the operation instruction. An unlocked position.

Referring to FIG. 2, it is a schematic flowchart of a step of locking an unlocking position in an electronic map according to FIG. 1. As can be seen from the figure, preferably, in this embodiment, the step of locking an unlocked position in the electronic map comprises:

- capturing an operation instruction under the target precision layer

In this embodiment, the first positioning module specifically includes a first instruction unit, where the first instruction unit can capture a trigger action of the user on the smart terminal, and read the trigger pressure and time of the trigger action. And action information such as location, and retrieving the operation instruction expressed by the action information in the instruction database of the smart terminal according to the action information, and generating a corresponding running instruction to send out.

- selecting an unlocked position in the electronic map according to the operation instruction

In this embodiment, the first positioning module further includes a first positioning unit, the first positioning unit may receive a running instruction sent by the first instruction unit, and select the electronic according to the running instruction. An unlocked location in the map.

Reading the location information of the unlocked location in the electronic map, obtaining an unlocked location information, and sending the information

Correspondingly, an information identifying unit of the first positioning module can read specific location information in the electronic map of the unlocked location selected by the first positioning unit, thereby obtaining an unlocking location information. And sending the unlocked location information outward.

- encrypting the target file by using the unlocked location as an unlock password

With continued reference to FIG. 1, in the embodiment, the smart terminal further includes an encryption module. After determining the unlocking position according to the operation instruction of the user, the encryption module may perform encryption processing on the target file, and finally set the decryption password as the decryption password of the target file.

Referring to FIG. 3, it is a schematic flowchart of the steps of performing encryption processing on the target file in FIG. It can be seen from the figure that, in this embodiment, the steps of performing encryption processing on the target file mainly include:

- set an error value

Specifically, in this embodiment, the encryption module includes a second instruction unit, and the second instruction unit can capture Obtaining a trigger action of the smart terminal by the user, and reading action information such as trigger pressure, time, position, and the like of the trigger action, and identifying an error value input by the user to the smart terminal according to the action information, And converting the error value into digital information readable by a smart terminal and transmitting the digital information.

- calculating a positional information of each point within a circle centered on said unlocked position information and said error value being a radius

In this embodiment, the encryption module further includes a data processing unit, and the data processing unit may receive an error value sent by the second instruction unit and unlocked position information read by the first positioning module, and The unlocking position information is centered, the error value is a radius, a circular model is established, and position information of each point in the circular model is calculated.

- establishing an unlock data list with position information of points in the circle

In this embodiment, the encryption module is further provided with a data statistics unit, wherein the data statistics unit can read the unlocked position information as a center, and the error value is a position of each point in the circular area defined by the radius. Information, and according to certain rules, such as latitude from small to large, an unlock data list is established and stored in the storage space of the smart terminal.

- performing an encryption operation by using the location information of each point in the unlock list as an unlocking key, and converting the target file into a target ciphertext

In this embodiment, an encryption unit is further disposed in the encryption module. The encryption unit may perform an encryption operation, and use the location information of each point in the unlock list as an unlocking key to convert the target file into a target ciphertext.

Preferably, in this embodiment, the encryption algorithm used may be a Data Encryption Standard (DES) algorithm, based on the Rijndael algorithm symmetric advanced data encryption standard AES, or an RSA algorithm.

- storing the target ciphertext in a storage space of the smart terminal.

In this embodiment, the encryption module further includes a storage unit, and the storage unit may store the target ciphertext obtained by converting the target file in a storage space of the smart terminal.

Corresponding to the encryption method of the target file, the present invention further provides a method for decrypting the target file. Referring to FIG. 4, it is a schematic flowchart of a method for decrypting the encrypted file in FIG. As can be seen from the figure, in the embodiment, the steps of the file decryption method mainly include:

- capturing current geographic location information of the smart terminal

Corresponding to the above file encryption method, when the user needs to encrypt the target file, the smart terminal may be carried to reach a preset decryption location. At this time, a second positioning module of the smart terminal may acquire current geographic location information of the smart terminal and feed back to the smart terminal.

- comparing the current geographic location information to the unlocked location

A first check module is further disposed in the smart terminal, where the first check module can read current geographic location information of the smart terminal acquired by the second positioning module, and the current geographic location The information is compared to the unlocked location information. Preferably, in this embodiment, the first verification module may compare the current geographic location information with the unlocked data in the unlocked data list, where the current geographic location information and one of the specific unlocked locations When the information is consistent, it is determined that the unlocked position is reached, and the first check module generates an unlock command to send out; otherwise, no operation is performed.

Decrypting the target file, converting the target file from ciphertext to plaintext.

The first decryption module in the smart terminal may receive the unlocking instruction, and according to the unlocking instruction, decrypt the target file by a corresponding decryption operation, and convert the target file from ciphertext to Clear, user-readable, readable, and actionable.

For the encryption method corresponding to the foregoing target file, in order to provide an unlocking scheme when the user cannot reach the unlocked position, the present invention further provides another method for decrypting the target file. Referring to FIG. 5, it is an encrypted file corresponding to FIG. A schematic flow chart of another decryption method. As can be seen from the figure, in the embodiment, the steps of the file decryption method mainly include:

- Capture an operation command

In this embodiment, the smart terminal includes an instruction module, and the instruction module can capture a trigger action of the user on the smart terminal, and read action information such as trigger pressure, time, position, etc. of the trigger action, and according to The action information retrieves an operation instruction expressed by the action information in an instruction database of the smart terminal, and generates a corresponding run instruction to send out.

- selecting a first unlocked location in the electronic map

In this embodiment, a third positioning module is further disposed in the smart terminal, where the third positioning module can receive the running instruction, and select a first unlocking in the electronic map according to the running instruction. position.

- comparing the first unlocked position with the unlocked position

A second verification module is further disposed in the smart terminal, where the second verification module can read specific geographic location information of the first unlocked location, and perform the geographic location information and the unlocked location information. Compared to right. Preferably, in this embodiment, the second verification module may compare the geographical location information with the unlock data in the unlock data list, where the geographic location information is consistent with one of the specific unlocked location information. The second verification module generates an unlock command to send out; otherwise, no operation is performed.

Decrypting the target file, converting the target file from ciphertext to plaintext.

In this embodiment, the second decryption module in the smart terminal may receive the unlocking instruction, and according to the unlocking instruction, decrypt the target file by using a corresponding decryption operation, and the target file is Converted from ciphertext to clear, readable, and operable plain text.

In summary, the present invention provides an encryption method for encrypting data files by using an electronic map, which associates a data encryption system with an electronic map, and uses a geographical location as an unlock password of the data file, thereby being able to arrive by carrying the smart terminal. The data file is decrypted by specifically unlocking the location or by modulating the unlocked location with the electronic map.

Another aspect of the present invention is to provide a data encryption system for an intelligent terminal. Referring to FIG. 6, which is a structural diagram of a data encryption system of a smart terminal in accordance with a preferred embodiment of the present invention. As can be seen from the figure, the data encryption system of the intelligent terminal provided by this embodiment mainly includes the following modules or units:

-System Control Module

In this embodiment, the smart terminal is provided with a system control module, and the system control module implements a technology for reading a trigger action of the user on the smart terminal, and starting a data encryption system of the smart terminal according to the triggering action. effect;

-Target selection module

After the user of the smart terminal selects an object file to be encrypted according to its own needs and sends an operation instruction to the smart terminal, the target selection module of the smart terminal can read the operation instruction and lock the operation instruction accordingly. The encrypted target file maintains the target file in a pending state.

- Electronic map control module

In order to realize the technical effect of encrypting/decrypting the file data or the application program in the smart terminal by using the geographic location, the data encryption system in this embodiment is provided with an electronic map control module, and the electronic map control module can start a data and the data The electronic map in advance associated with the encryption system invokes all functional modules of the electronic map to implement functions such as positioning and searching for a location.

- Precision adjustment module

Since the different resolutions of the electronic map represent different geographical locations. Therefore, in this embodiment, the data processing system further includes a precision adjustment module. The user can input an operation instruction to the smart terminal, and the precision adjustment module of the smart terminal can capture an operation instruction, and after parsing, lock the electronic map to a target precision layer according to the operation instruction. Thereby, the display scale, the ground resolution, and the like of the electronic map are accordingly locked. The electronic map is locked to a target precision layer.

- first positioning module

In this embodiment, a first positioning module is further disposed in the smart terminal, and the positioning module can be used for capturing. After triggering the operation instruction of the smart terminal and parsing the operation instruction, the user acquires an unlocked position in the electronic map according to the operation instruction.

Preferably, FIG. 7 is a structural diagram conforming to the first positioning module in FIG. 6. As can be seen from the figure, in the embodiment, the first positioning module specifically includes the following units:

- first instruction unit

The first instruction unit may capture a trigger action of the user on the smart terminal, and read action information such as trigger pressure, time, position, etc. of the trigger action, and execute an instruction database of the smart terminal according to the action information. Searching for the operation instruction expressed by the action information, and generating a corresponding running instruction to send out.

- first positioning unit

The first positioning unit may receive a running instruction sent by the first instruction unit, and select an unlocking position in the electronic map according to the running instruction.

-Information identification unit

The information identifying unit may read specific location information in the electronic map of the unlocked location selected by the first positioning unit, thereby obtaining an unlocked location information and transmitting the unlocked location outward information.

- encryption module

With reference to FIG. 6, it can be seen from the figure that in the embodiment, the data encryption system further includes an encryption module, and after determining an unlocking position according to an operation instruction of the user, the encryption module may perform the target file. The encryption process is performed, and finally the unlocked location information is set as the decryption password of the target file.

Specifically, referring to FIG. 8 , which is a structural diagram of the cryptographic module in FIG. 6 , it can be seen from the figure that, in this embodiment, the cryptographic module specifically includes the following units:

- second instruction unit

The second instruction unit may capture a trigger action of the user on the smart terminal, and read action information such as trigger pressure, time, position, etc. of the trigger action, and identify the user to the smart according to the action information. An error value input by the terminal, and converting the error value into a digital information readable by a smart terminal to be sent out.

-Data processing unit

The data processing unit may receive the error value sent by the second instruction unit and the unlock position information read by the first positioning module, and center on the unlock position information, the error value is a radius, and establish a A circular model calculates the position information of each point in the circular model.

-Data Statistics Unit

The data statistics unit can read the unlocked position information as a center, and the error value is limited to a radius. Position information of each point in the circular area, and according to a certain rule, such as latitude from small to large, an unlock data list is established and stored in the storage space of the smart terminal.

- encryption unit

The encryption unit may perform an encryption operation, and use the location information of each point in the unlock list as an unlocking key to convert the target file into a target ciphertext.

Preferably, in this embodiment, the encryption algorithm used may be a Data Encryption Standard (DES) algorithm, based on the Rijndael algorithm symmetric advanced data encryption standard AES, or an RSA algorithm.

- storage unit

The storage unit may store the target ciphertext obtained by the conversion of the target file in a storage space of the smart terminal.

In addition, referring to FIG. 9, which is a structural diagram of a data encryption system according to another preferred smart terminal of the present invention, it can be seen from the figure that the data encryption system provided in this embodiment further includes a target file decryption. The following modules:

-Second positioning module

And acquiring current geographic location information of the smart terminal, and feeding back to the smart terminal.

- first check module

The first verification module may read current geographic location information of the smart terminal acquired by the second positioning module, and compare the current geographic location information with the unlocked location information. Preferably, in this embodiment, the first verification module may compare the current geographic location information with the unlocked data in the unlocked data list, where the current geographic location information and one of the specific unlocked locations When the information is consistent, it is determined that the unlocked position is reached, and the first check module generates an unlock command to send out; otherwise, no operation is performed.

- first decryption module

The first decryption module may receive the unlocking instruction, and according to the unlocking instruction, decrypt the target file by a corresponding decryption operation, and convert the target file from a ciphertext to a user, Readable, actionable plain text.

Preferably, referring to FIG. 10, which is a structural diagram of a data encryption system according to another preferred smart terminal of the present invention, it can be seen from the figure that the data encryption system provided in this embodiment further includes target file decryption. The following modules:

- instruction module

The instruction module may capture a trigger action of the user on the smart terminal, and read action information such as trigger pressure, time, position, etc. of the trigger action, and check the command database in the smart terminal according to the action information. The operation instruction expressed by the action information is sent, and a corresponding running instruction is generated and sent out.

- third positioning module

The third positioning module can receive the running instruction, and select a first unlocking position in the electronic map according to the running instruction.

-Second check module

The second verification module may read specific geographic location information of the first unlocked location, and compare the geographic location information with the unlocked location information. Preferably, in this embodiment, the second verification module may compare the geographical location information with the unlock data in the unlock data list, where the geographic location information is consistent with one of the specific unlocked location information. The second verification module generates an unlock command to send out; otherwise, no operation is performed.

- second decryption module

The second decryption module may receive the unlocking instruction, and according to the unlocking instruction, decrypt the target file by a corresponding decryption operation, and convert the target file from a ciphertext to a user, Readable, actionable plain text.

In summary, the data encryption system of the intelligent terminal provided by the present invention is provided with a system control module, an electronic map control module, a positioning module, and the like, and utilizes the mutual cooperation of the above modules to realize the technology of encrypting by using a geographical location. The effect is to improve the convenience and effectiveness of data encryption while avoiding the trouble of cumbersome calculation of passwords.

It should be noted that the embodiments of the present invention are preferred embodiments, and are not intended to limit the scope of the present invention. Any one skilled in the art may use the above-disclosed technical contents to change or modify the equivalent embodiments. Any modification or equivalent changes and modifications of the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the technical solutions of the present invention.

Claims (10)

1. A data encryption method for an intelligent terminal, comprising the steps of:

   Start the data encryption system;

   Lock the target file to be encrypted;

   Initiating an electronic map associated with the data encryption system;

   Locking the electronic map to a target precision layer;

   Under the target precision layer, capturing an operation instruction, and locking an unlocking position in the electronic map according to the operation instruction;

   Encrypting the target file by using the unlocked location as an unlock password,

   Converting the target file into a target ciphertext and storing it in a storage space of the smart terminal.
2. A data encryption method according to claim 1, wherein

   Steps of capturing an operation command in the target accuracy layer and locking an unlocked position in the electronic map include:

   Capture an operation instruction under the target precision layer,

   Selecting an unlocked position in the electronic map according to the operation instruction,

   Reading the location information of the unlocked location in the electronic map, obtaining an unlocked location information, and transmitting the information.
3. A data encryption method according to claim 2, wherein

   The step of performing encryption processing on the target file by using the unlocked position as an unlocking key includes:

   Set an error value,

   Calculating a position information of each point in a circle centered on the unlocked position information and having the error value as a radius,

   Establishing an unlock data list by using position information of each point in the circular area.

   The location information of each point in the unlocking list is used as an unlocking key, and an encryption operation is performed to convert the target file into a target ciphertext.

   The target ciphertext is stored in a storage space of the smart terminal.
4. A data encryption method according to claim 1, wherein

   The step of decrypting the target file includes,

   Capturing current geographic location information of the smart terminal,

   Comparing the current geographic location information with the unlocked location,

   When the current geographic location information matches the unlocked location,

   Decrypting the target file, converting the target file from ciphertext to plaintext.
5. The method of claim 1 wherein

   The step of decrypting the target file further includes

   Capture an operation command,

   Selecting a first unlocked position in the electronic map,

   Comparing the first unlocked position with the unlocked position,

   When the first unlocked position matches the unlocked position,

   Decrypting the target file, converting the target file from ciphertext to plaintext.
6. A data encryption system for an intelligent terminal, comprising the following modules,

   a system control module that starts a data encryption system;

   The target selection module locks the target file to be encrypted;

   An electronic map control module that initiates an electronic map associated with the data encryption system;

   a precision adjustment module that locks the electronic map to a target precision layer;

   The first positioning module captures an operation instruction, and according to the operation instruction, locks an unlocking position in the electronic map;

   The cryptographic module encrypts the target file by using the unlocking location as an unlocking password, and converts the target file into a target ciphertext, and stores the target ciphertext in the storage space of the smart terminal.
7. A data encryption system according to claim 6 wherein:

   The first positioning module includes

   a first instruction unit that captures an operation instruction,

   a first positioning unit, according to the operation instruction, selecting an unlocked position in the electronic map,

   The information identifying unit reads the location information of the unlocked location in the electronic map, obtains an unlocked location information, and sends the unlocked location information.
8. A data encryption system according to claim 6 wherein:

   The encryption module includes

   a second instruction unit that captures an operation instruction and acquires an error value,

   The data processing unit calculates a position information of each point in a circular area centered on the unlocked position information and the error value is a radius,

   a data statistics unit, configured to establish an unlock data list by using location information of each point in the circle.

   The encryption unit performs an encryption operation on the location information of each point in the unlock list, and converts the target file into a target ciphertext.

   a storage unit, configured to store the target ciphertext in a storage space of the smart terminal
9. A data encryption system according to claim 6 wherein:

   Also includes,

   a second positioning module, capturing current geographic location information of the smart terminal,

   a first verification module, comparing the current geographic location information with the unlocked location,

   The first decryption module decrypts the target file when the current geographic location information matches the unlocked location, and converts the target file from ciphertext to plaintext.
10. A data encryption system according to claim 6 wherein:

    Also includes,

    An instruction module that captures an operation instruction,

    a third positioning module, selecting a first unlocking position in the electronic map,

    a second verification module that compares the first unlocked position with the unlocked position,

    And a second decryption module, when the first unlocking position matches the unlocking position, decrypting the target file, and converting the target file from ciphertext to plaintext.

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