WO2018098886A1 - Method for opening vehicle door, mobile terminal, vehicle-mounted terminal, and system - Google Patents

Abstract

A method for opening a vehicle door, a mobile terminal, a vehicle-mounted terminal and a system, the method comprising: a mobile terminal negotiating, with a vehicle-mounted terminal, an encryption algorithm and an decryption algorithm for information (S101); acquiring user fingerprint information and encrypting same using the negotiated encryption algorithm (S102); and sending the encrypted user fingerprint information to the vehicle-mounted terminal (S103), the vehicle-mounted terminal decrypting the encrypted user fingerprint information using the negotiated decryption algorithm, comparing same with pre-stored user fingerprint information, and if both match, opening the vehicle door. The described method can help conveniently and securely open the vehicle door.

Description

Method for opening door, mobile terminal, vehicle terminal and system

This application claims priority to Chinese Patent Application No. 201611076026.X, the invention name is "a method of opening a door, a mobile terminal, a vehicle terminal and a system", which is filed on November 29, 2016. The entire contents are incorporated herein by reference.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method for opening a vehicle door, a mobile terminal, an in-vehicle terminal, and a system.

Background technique

As people's living standards continue to improve, more and more users and families have their own cars. Whether it is to go to work, business reception or travel, it can bring great convenience to users, but also help to expand the radius of the user's activities.

When the user needs to use the car, the door must be opened first. At present, the existing method of opening the door has a traditional insertion key to open the door, which is cumbersome; in addition, for a vehicle equipped with a keyless entry system, the key can be wirelessly connected with the door, when the key is close to the car. Open the door directly, but this method is less secure. And sometimes the user may forget the key in the car. If this happens, neither of the above methods can open the door. Therefore, there is a need for a convenient and safe way to open the door.

Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a method for opening a vehicle door, a mobile terminal, an in-vehicle terminal and a system. It can improve the convenience and safety of door opening.

In order to solve the above technical problem, a first aspect of the embodiments of the present invention provides a method for opening a vehicle door, including:

An encryption algorithm and a decryption algorithm for negotiating information between the mobile terminal and the vehicle terminal;

Obtain user fingerprint information and encrypt it by using a negotiated encryption algorithm;

Sending the encrypted user fingerprint information to the in-vehicle terminal, the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and after the matching is successful Open the car door.

A second aspect of the embodiments of the present invention provides a mobile terminal, including:

a negotiating unit, configured as an encryption algorithm and a decryption algorithm for negotiating information with the in-vehicle terminal;

The encryption unit is configured to acquire user fingerprint information and encrypt using a negotiated encryption algorithm;

a sending unit, configured to send the encrypted user fingerprint information to the vehicle-mounted terminal, where the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts the file by using a negotiated decryption algorithm. And after the matching is successful, open the car door.

A third aspect of the embodiments of the present invention provides a mobile terminal, including:

a processor, a memory, an interface circuit, and a bus, wherein the processor, the memory, and the interface circuit are connected by a bus, wherein the memory is configured to store a set of program codes, and the processor is configured to call the program code stored in the memory , do the following:

An encryption algorithm and a decryption algorithm for negotiating information with the vehicle terminal;

Obtain user fingerprint information and encrypt it by using a negotiated encryption algorithm;

Sending the encrypted user fingerprint information to the in-vehicle terminal, the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and after the matching is successful Open the car door.

The encryption algorithm and the decryption algorithm are asymmetric keys.

The encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

Wherein, the processor is further configured to:

Obtaining identification information of the mobile terminal and encrypting by using a negotiated encryption algorithm;

When the encrypted user fingerprint information is sent to the vehicle-mounted terminal, the method further includes:

Sending the encrypted identification information to the in-vehicle terminal, where the encrypted identification information is used to match the pre-stored identification information and the user fingerprint information and the identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm. After the matching is successful, the car door is opened.

Wherein, the processor is further configured to:

After the decrypted information is successfully matched, the mobile terminal sends a control command to the in-vehicle terminal, and controls the in-vehicle terminal to open the car door.

A fourth aspect of the embodiments of the present invention provides a method for opening a vehicle door, including:

An encryption algorithm and a decryption algorithm for negotiating information between the vehicle terminal and the mobile terminal;

Receiving the encrypted information sent by the mobile terminal;

The received decryption algorithm is used to decrypt the received information and match the pre-stored information;

If the information is successfully matched, the vehicle door is opened or a control command sent by the mobile terminal is received, and the car door is opened;

The information includes user fingerprint information.

A fifth aspect of the embodiments of the present invention provides an in-vehicle terminal, including:

a negotiating unit, configured as an encryption algorithm and a decryption algorithm for negotiating information with the mobile terminal;

a receiving unit, configured to receive the encrypted information sent by the mobile terminal;

a decryption unit configured to decrypt the received information using a negotiated decryption algorithm and to match the pre-stored information;

Opening the unit, if the information is successfully matched, opening the car door;

Or the receiving unit is further configured to receive a control command sent by the mobile terminal, instructing the opening unit to open a car door;

The information includes user fingerprint information.

A sixth aspect of the embodiments of the present invention provides an in-vehicle terminal, including:

a processor, a memory, an interface circuit, and a bus, wherein the processor, the memory, and the interface circuit are connected by a bus, wherein the memory is configured to store a set of program codes, and the processor is configured to call the program code stored in the memory , do the following:

An encryption algorithm and a decryption algorithm for negotiating information with the mobile terminal;

Receiving the encrypted information sent by the mobile terminal;

The received decryption algorithm is used to decrypt the received information and match the pre-stored information;

If the information is successfully matched, the vehicle door is opened or a control command sent by the mobile terminal is received, and the car door is opened;

The information includes user fingerprint information.

The encryption algorithm and the decryption algorithm are asymmetric keys.

The encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

The information further includes identification information of the mobile terminal.

Wherein, the processor is further configured to:

If the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or the connection with the mobile terminal is disconnected within a preset time period.

A seventh aspect of the embodiments of the present invention provides a system, including:

a mobile terminal according to any implementation of the second aspect of the present invention;

An in-vehicle terminal according to any implementation of the fifth aspect of the present invention.

Embodiments of the present invention have the following beneficial effects:

By sending the encrypted fingerprint information and not sending the door opening command to the vehicle terminal, the system can provide double protection, the first layer is decrypted by the encryption algorithm, and the second layer is the uniqueness and complexity of the fingerprint information. The complex computing protection of the sexual composition makes the thief unable to crack or simulate the signal sent by the mobile terminal to the vehicle terminal, and realizes the use of the user mobile terminal to unlock the door, which is convenient for the user to use, and ensures the safety of the user's car.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flow chart of a first embodiment of a method for opening a vehicle door according to the present invention;

2 is a schematic flow chart of a second embodiment of a method for opening a vehicle door according to the present invention;

3 is a schematic flow chart of a third embodiment of a method for opening a vehicle door according to the present invention;

4 is a schematic diagram showing the composition of a first embodiment of a mobile terminal of the present invention;

5 is a schematic diagram of the composition of a second embodiment of the mobile terminal of the present invention;

6 is a schematic diagram showing the composition of a first embodiment of the vehicle-mounted terminal of the present invention;

7 is a schematic diagram showing the composition of a second embodiment of the vehicle-mounted terminal of the present invention;

Figure 8 is a schematic diagram showing the composition and interaction flow of the system of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second" and "third" and the like in the specification and claims of the present invention and the above drawings are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units not listed, or, optionally, Other steps or units inherent to these processes, methods, products or devices.

The mobile terminal in the embodiment of the present invention is a device for providing voice and/or data connectivity to a user, which can establish a wireless data connection with the vehicle-mounted terminal, and has a fingerprint acquisition module, which can collect the user fingerprint. The mobile terminal may include, but is not limited to, a smart phone (such as an Android mobile phone, an iOS mobile phone, a Windows Phone mobile phone, etc.), a tablet computer, a palmtop computer, a notebook computer, a mobile Internet device (MID), or a wearable device, etc. The mobile terminal is only an example, not an exhaustive one, including but not limited to the above mobile terminal.

The in-vehicle terminal in the embodiment of the present invention can establish a wireless data connection with the mobile terminal, which can be integrated with the central control on the car, or can be set independently. The embodiment of the present invention does not impose any limitation, and the user can be pre-stored in the memory. Fingerprint information and identification information of the mobile terminal used by the user. It can control various parts of the car, such as doors, headlights, wipers, air conditioners, windows and skylights.

The content of the embodiments of the present invention will be described below with reference to the accompanying drawings.

1 is a schematic flowchart of a first embodiment of a method for opening a vehicle door according to the present invention. In this embodiment, the method includes the following steps:

S101. An encryption algorithm and a decryption algorithm for negotiating information between the mobile terminal and the vehicle terminal.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Of course, if the security requirement is low or the processor capability of the mobile terminal or the in-vehicle terminal is weak, the symmetric key may be used, which is not limited in the embodiment of the present invention.

Among them, symmetric key encryption is also called Secret Key Encryption (SKE), that is, both sides transmitting and receiving data must use the same / symmetric key to encrypt and decrypt the plaintext. Asymmetric key encryption, also known as Public Key Encryption (PKE), means that each person has a unique pair of keys: a public key and a private key. The public key is publicly disclosed and the private key is private. Save; use one of the keys to encrypt, you can only use another key to decrypt. The party transmitting the data encrypts the transmitted information with the other party's public key, and then the recipient decrypts it with his own private key. Public key encryption technology solves the problem of key release and management and is the core of current commercial passwords. Using public key technology, both parties communicating data can securely identify each other's identity and public key, providing identifiability of the communication.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time. For example, multiple sets of corresponding encryption and decryption algorithms can be negotiated, and then one set is agreed to be used each time, and the mobile terminal can notify the in-vehicle terminal by generating algorithm identification information. Such dynamically changing encryption and decryption algorithms can further improve the security of the system.

S102. Acquire user fingerprint information and perform encryption by using a negotiated encryption algorithm.

Optionally, when encrypting the user fingerprint information, it is required to detect that a wireless data connection is established with the vehicle-mounted terminal and the user fingerprint information has been acquired. The mobile terminal is prevented from encrypting by using the encryption algorithm every time the fingerprint information is acquired. Alternatively, the obtained fingerprint information may be encrypted after the terminal opens a specific interface of a specific application, such as a control interface of the car control application.

S103. Send the encrypted user fingerprint information to the vehicle-mounted terminal.

The encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and opens the car door after the matching is successful. .

Optionally, the mobile terminal can establish an infinite data connection with the car control terminal by short-range wireless communication before transmitting the information.

The short-range wireless communication method is used to transmit the encrypted fingerprint information, so the confidentiality is required to be good and does not spread. For example, it can be Bluetooth, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), and the like. The embodiment of the invention is not limited.

It should be noted that since a family may have multiple members, fingerprint information of multiple users may be pre-stored on the vehicle terminal of the automobile, so that all users in the family member can use the method in this embodiment to open the door.

Optionally, after the matching of the fingerprint information by the vehicle terminal is successful, the car door may be directly controlled to be turned on, or may not be turned on temporarily, waiting for receiving a control command sent by the mobile terminal to control the door opening.

It should be noted that, in this embodiment, the control of opening the door is specifically described, which is a basic step of entering the automobile to use the automobile, but the method described in the embodiment of the present invention can be applied not only to control the opening of the door but also to the door opening. It can be applied to the control of other parts of the car. For example, an application for controlling the car can be installed on the mobile terminal, in which various components of the car can be simulated or multiple buttons can be used to correspond to various parts of the car, and the user can pass the fingerprint matching successfully. The mobile terminal controls various components of the automobile, such as a headlight, an air conditioner, a window, an audio, and the like, which are not limited in any embodiment of the present invention.

Optionally, if the matching fails, the door is not opened, and the vehicle terminal does not execute the control command sent by the mobile terminal.

If the matching of the preset number of times fails, the information sent by the mobile terminal to the in-vehicle terminal is rejected within a preset duration, or the connection between the mobile terminal and the in-vehicle terminal is disconnected within a preset duration .

For example, the vehicle-mounted terminal may disconnect the wireless data connection with the mobile terminal within one hour after four consecutive fingerprint matching failures, or may not disconnect the wireless data connection, but refuse to receive the mobile terminal's transmission within one hour. information. Or you can also introduce an alarm mechanism to remind the owner after a continuous match failure. Therefore, it is possible to prevent the unscrupulous elements from continuously taking fingerprints and attempting to illegally open the door to improve the security of the system.

The following is an example of a scenario that can be applied to the method described in this embodiment:

Scene 1: The user walks to the side of the car, and the mobile terminal automatically connects to the vehicle terminal for Bluetooth connection. The user opens the door control application of the mobile terminal to enter the door opening interface, puts the finger on the fingerprint identification module, and the mobile terminal acquires the user fingerprint and encrypts the fingerprint. And transmitting to the vehicle terminal through the Bluetooth connection, the vehicle terminal decrypts the fingerprint, and matches with the pre-stored user fingerprint, matches and passes, and the car door is unlocked.

Scene 2: The thief cracks the wireless connection of the vehicle terminal next to the car, such as a Bluetooth connection, and sends the stolen fingerprint information to the vehicle terminal. The vehicle terminal decrypts the received fingerprint information. Since there is no matching encryption algorithm, the garbled code is obtained after decryption. The match fails. After multiple attempts fail, the car disconnects the wireless connection and sends a notification to the owner.

In this embodiment, by sending the encrypted fingerprint information and not sending the door opening command to the vehicle terminal, the system can provide double protection, the first layer is decrypted by the encryption algorithm, and the second layer is the fingerprint. The unique computational complexity of the uniqueness and complexity of the information makes it impossible for the thief to crack or simulate the signal sent by the mobile terminal to the vehicle-mounted terminal. In order to realize the use of the user's mobile terminal to unlock the door, it is convenient for the user to use, and the safety of the user's car is ensured. .

It should be noted that the embodiment of the present invention is only described in detail for a more common door opening scenario, but the method described in this embodiment can be applied to other door opening fields such as smart, in addition to the door opening of the automobile. Access control, etc., or can be applied to other scenarios that can be controlled by fingerprint encryption and decryption.

2 is a schematic flowchart of a second embodiment of a method for opening a vehicle door according to the present invention. In this embodiment, the method includes:

S201. An encryption algorithm and a decryption algorithm for negotiating information between the mobile terminal and the vehicle terminal.

S202. Acquire user fingerprint information and identification information of the mobile terminal, and perform encryption by using a negotiated encryption algorithm.

S203. Send the encrypted user fingerprint information and the identifier information to the vehicle-mounted terminal.

The encrypted identification information is used to match the pre-stored identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and opens the automobile door after the user fingerprint information and the identification information are successfully matched.

In the embodiment of the present invention, the process of matching the identification information of the mobile terminal is added, and the security of the system can be further improved by encrypting and decrypting the identification information of the mobile terminal. The pre-stored identification information may include identification information of a plurality of mobile terminals of the user's home or a friend, and combined with the pre-stored plurality of fingerprint information, the opening of the door by the mobile terminal of the plurality of reliable users may be implemented.

3 is a schematic flowchart of a third embodiment of a method for opening a vehicle door according to the present invention. In this embodiment, the method includes the following steps:

S301. An encryption algorithm and a decryption algorithm for negotiating information between the vehicle terminal and the mobile terminal.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Of course, if the security requirement is low or the processor capability of the mobile terminal or the in-vehicle terminal is weak, the symmetric key may be used, which is not limited in the embodiment of the present invention.

Among them, symmetric key encryption is also called Secret Key Encryption (SKE), that is, both sides transmitting and receiving data must use the same / symmetric key to encrypt and decrypt the plaintext. Asymmetric key encryption, also known as Public Key Encryption (PKE), means that each person has a unique pair of keys: a public key and a private key. The public key is publicly disclosed and the private key is private. Save; use one of the keys to encrypt, you can only use another key to decrypt. The party transmitting the data encrypts the transmitted information with the other party's public key, and then the recipient decrypts it with his own private key. Public key encryption technology solves the problem of key release and management and is the core of current commercial passwords. Using public key technology, both parties communicating data can securely identify each other's identity and public key, providing identifiability of the communication.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time. For example, multiple sets of corresponding encryption and decryption algorithms can be negotiated, and then one set is agreed to be used each time, and the mobile terminal can notify the in-vehicle terminal by generating algorithm identification information. Such dynamically changing encryption and decryption algorithms can further improve the security of the system.

S302. Receive encrypted information sent by the mobile terminal.

S303: Decrypt the received information by using a negotiated decryption algorithm and match the pre-stored information.

S304. If the information is successfully matched, open a car door or receive a control command sent by the mobile terminal to open the car door.

Optionally, the information includes user fingerprint information.

Optionally, the information further includes identification information of the mobile terminal.

Optionally, if the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or the connection with the mobile terminal is disconnected within a preset time period.

Referring to FIG. 4, it is a schematic diagram of a composition of a mobile terminal according to a first embodiment of the present invention. In this embodiment, the vehicle-mounted terminal includes:

The negotiating unit 100 is configured as an encryption algorithm and a decryption algorithm for negotiating information with the in-vehicle terminal;

The encryption unit 200 is configured to acquire user fingerprint information and perform encryption by using a negotiated encryption algorithm;

The sending unit 300 is configured to send the encrypted user fingerprint information to the vehicle-mounted terminal, where the encrypted user fingerprint information is used to decrypt the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts the data using a negotiated decryption algorithm. Match and open the car door after the match is successful.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

Optionally, the encryption unit 200 is further configured to:

Obtaining identification information of the mobile terminal and encrypting by using a negotiated encryption algorithm;

The sending unit 300 is further configured to:

Sending the encrypted identification information to the in-vehicle terminal, where the encrypted identification information is used to match the pre-stored identification information and the user fingerprint information and the identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm. After the matching is successful, the car door is opened.

Optionally, the sending order 300 yuan is further set to:

After the decrypted information is successfully matched, the mobile terminal sends a control command to the in-vehicle terminal, and controls the in-vehicle terminal to open the car door.

The foregoing negotiation unit 100, the encryption unit 200, and the sending unit 300 may exist independently or may be integrated. The negotiation unit 100, the encryption unit 200, or the sending unit 300 may be separately set in hardware form independently of the processor of the mobile terminal, and the setting form It may be in the form of a microprocessor; it may also be embedded in the processor of the mobile terminal in hardware form, or may be stored in the memory of the mobile terminal in software, so that the processor of the mobile terminal invokes the above negotiation. The operations corresponding to the unit 100, the encryption unit 200, and the transmission unit 300.

For example, in the first embodiment of the mobile terminal of the present invention (the embodiment shown in FIG. 4), the encryption unit 200 may be a processor of the mobile terminal, and the functions of the negotiation unit 100 and the sending unit 300 may be embedded in the In the processor, it can also be set separately from the processor, or can be stored in the memory in the form of software, and the function is called by the processor. The embodiment of the invention does not impose any limitation. The above processor may be a central processing unit (CPU), a microprocessor, a single chip microcomputer, or the like.

5 is a schematic diagram of a composition of a mobile terminal according to a second embodiment of the present invention. In this embodiment, the mobile terminal includes:

The processor 110, the memory 120, the interface circuit 130, and the bus 140 are connected by a bus 140, wherein the memory 120 is configured to store a set of program codes, and the processor 110 For invoking the program code stored in the memory 120, the following operations are performed:

An encryption algorithm and a decryption algorithm for negotiating information with the vehicle terminal;

Obtain user fingerprint information and encrypt it by using a negotiated encryption algorithm;

Sending the encrypted user fingerprint information to the in-vehicle terminal, the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and after the matching is successful Open the car door.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

Optionally, the processor 110 is further configured to:

Obtaining identification information of the mobile terminal and encrypting by using a negotiated encryption algorithm;

When the encrypted user fingerprint information is sent to the vehicle-mounted terminal, the method further includes:

Sending the encrypted identification information to the in-vehicle terminal, where the encrypted identification information is used to match the pre-stored identification information and the user fingerprint information and the identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm. After the matching is successful, the car door is opened.

Optionally, the processor 110 is further configured to:

After the decrypted information is successfully matched, the mobile terminal sends a control command to the in-vehicle terminal, and controls the in-vehicle terminal to open the car door.

Referring to FIG. 6 , it is a schematic diagram of a composition of a first embodiment of an in-vehicle terminal according to the present invention. In this embodiment, the in-vehicle terminal includes:

The negotiating unit 400 is configured to negotiate an encryption algorithm and a decryption algorithm with the mobile terminal;

The receiving unit 500 is configured to receive the encrypted information sent by the mobile terminal;

The decryption unit 600 is configured to decrypt the received information and match the pre-stored information by using a negotiated decryption algorithm;

Opening the unit 700, if the information is successfully matched, opening the car door;

Or the receiving unit 500 is further configured to receive a control command sent by the mobile terminal, instructing the opening unit 700 to open a car door;

The information includes user fingerprint information.

Optionally, the information further includes identification information of the mobile terminal.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

Optionally, the receiving unit 500 is further configured to:

If the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or the connection with the mobile terminal is disconnected within a preset time period.

The above negotiation unit 400, the receiving unit 500, the decryption unit 600 and the opening unit 700 may exist independently or may be integrated, and the negotiation unit 400, the receiving unit 500, the decryption unit 600 or the opening unit 700 may be independent of the vehicle-mounted terminal in the form of hardware. The processor is separately provided and can be in the form of a microprocessor; it can also be embedded in the processor of the vehicle terminal in hardware form, or can be stored in the memory of the vehicle terminal in software for the vehicle. The processor of the terminal invokes the operations corresponding to the above negotiation unit 400, the receiving unit 500, the decryption unit 600, and the opening unit 700.

For example, in the first embodiment of the vehicle-mounted terminal of the present invention (the embodiment shown in FIG. 6), the decryption unit 600 may be a processor of the vehicle-mounted terminal, and the functions of the negotiation unit 400, the receiving unit 500, and the opening unit 700 may be Embedded in the processor, it can also be set independently of the processor, or can be stored in the memory in the form of software, and the function is called by the processor. The embodiment of the invention does not impose any limitation. The above processor may be a central processing unit (CPU), a microprocessor, a single chip microcomputer, or the like.

Referring to FIG. 7 , it is a schematic diagram of a composition of a second embodiment of the vehicle-mounted terminal of the present invention. In this embodiment, the vehicle-mounted terminal includes:

The processor 210, the memory 220, the interface circuit 230, and the bus 240, the processor 210, the memory 220, and the interface circuit 230 are connected by a bus 240, wherein the memory 220 is used to store a set of program codes, and the processor 210 For invoking the program code stored in the memory 220, the following operations are performed:

An encryption algorithm and a decryption algorithm for negotiating information with the mobile terminal;

Receiving the encrypted information sent by the mobile terminal;

The received decryption algorithm is used to decrypt the received information and match the pre-stored information;

If the information is successfully matched, the vehicle door is opened or a control command sent by the mobile terminal is received, and the car door is opened;

The information includes user fingerprint information.

Optionally, the encryption algorithm and the decryption algorithm are asymmetric keys.

Optionally, the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time.

Optionally, the information further includes identification information of the mobile terminal.

Optionally, the processor 110 is further configured to:

If the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or the connection with the mobile terminal is disconnected within a preset time period.

FIG. 8 is a schematic diagram of a composition and an interaction process of a system according to an embodiment of the present invention; in this embodiment, the system includes:

Mobile terminal 10 and vehicle terminal 20;

The mobile terminal 10 is configured to use an encryption algorithm and a decryption algorithm for negotiating information with the vehicle-mounted terminal, acquire information of the user, perform encryption by using a negotiated encryption algorithm, and transmit the encrypted information to the vehicle-mounted terminal.

An in-vehicle terminal, an encryption algorithm and a decryption algorithm for negotiating information with the mobile terminal; receiving the encrypted information sent by the mobile terminal; decrypting the received information by using a negotiated decryption algorithm and matching the pre-stored information If the information is successfully matched, the vehicle door is opened or the control command sent by the mobile terminal is received to control the opening of the car door; if the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within the preset time period. Or disconnecting the mobile terminal within a preset time period;

The information includes user fingerprint information, or includes user fingerprint information and identification information of the mobile terminal.

The specific interaction process is as follows:

S801. An encryption algorithm and a decryption algorithm for negotiating information between the mobile terminal and the vehicle control terminal.

S802: The mobile terminal establishes a data connection with the vehicle control terminal by short-range wireless communication.

S803. The mobile terminal acquires user fingerprint information.

S804. The mobile terminal encrypts the fingerprint information by using a negotiated encryption algorithm.

S805. The mobile terminal sends the encrypted fingerprint information by establishing a good data connection.

S806. Decrypt the encrypted fingerprint information by using a negotiated decryption algorithm.

S807, after obtaining the decrypted fingerprint information, matching with the pre-stored user fingerprint information.

S808, when the matching is successful, receiving a control command of the mobile terminal to the car to open the door, or directly opening the door.

Optionally, the identification information of the mobile terminal may be further increased during encryption and decryption to further improve system security, and after the continuous matching fails, the vehicle terminal 20 may reject the information sent or disconnected and moved by the mobile terminal 10. The connection of the terminal 10, or may also introduce an alarm mechanism after the continuous matching failure to remind the owner.

It should be noted that the various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments are mutually referred to. can. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

Through the description of the above embodiments, the present invention has the following advantages:

By sending the encrypted fingerprint information and not sending the door opening command to the vehicle terminal, the system can provide double protection, the first layer is decrypted by the encryption algorithm, and the second layer is the uniqueness and complexity of the fingerprint information. The complex computing protection of the sexual composition makes the thief unable to crack or simulate the signal sent by the mobile terminal to the vehicle terminal, and realizes the use of the user mobile terminal to unlock the door, which is convenient for the user to use, and ensures the safety of the user's car.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims (21)

A method for opening a vehicle door, comprising: An encryption algorithm and a decryption algorithm for negotiating information between the mobile terminal and the vehicle terminal; Obtain user fingerprint information and encrypt it by using a negotiated encryption algorithm; Sending the encrypted user fingerprint information to the in-vehicle terminal, the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm, and after the matching is successful Open the car door. The method of claim 1 wherein said encryption algorithm and decryption algorithm are asymmetric keys. The method of claim 1 wherein said encryption algorithm and said decryption algorithm are correspondingly and dynamically change at the same time. The method according to claim 1, wherein when the user fingerprint information is acquired and the encryption is performed by using a negotiated encryption algorithm, the method further includes: Obtaining identification information of the mobile terminal and encrypting by using a negotiated encryption algorithm; When the encrypted user fingerprint information is sent to the vehicle-mounted terminal, the method further includes: Sending the encrypted identification information to the in-vehicle terminal, where the encrypted identification information is used to match the pre-stored identification information and the user fingerprint information and the identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm. After the matching is successful, the car door is opened. The method of any of claims 1-4, further comprising: After the decrypted information is successfully matched, the mobile terminal sends a control command to the in-vehicle terminal, and controls the in-vehicle terminal to open the car door. A mobile terminal, comprising: a negotiating unit, configured as an encryption algorithm and a decryption algorithm for negotiating information with the in-vehicle terminal; The encryption unit is configured to acquire user fingerprint information and encrypt using a negotiated encryption algorithm; a sending unit, configured to send the encrypted user fingerprint information to the vehicle-mounted terminal, where the encrypted user fingerprint information is used to match the pre-stored user fingerprint information after the vehicle-mounted terminal decrypts the file by using a negotiated decryption algorithm. And after the matching is successful, open the car door. The mobile terminal of claim 6, wherein the encryption algorithm and the decryption algorithm are asymmetric keys. The mobile terminal according to claim 6, wherein the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time. The mobile terminal of claim 6, wherein the encryption unit is further configured to: Obtaining identification information of the mobile terminal and encrypting by using a negotiated encryption algorithm; The sending unit is further configured to: Sending the encrypted identification information to the in-vehicle terminal, where the encrypted identification information is used to match the pre-stored identification information and the user fingerprint information and the identification information after the vehicle-mounted terminal decrypts it by using a negotiated decryption algorithm. After the matching is successful, the car door is opened. The mobile terminal according to any one of claims 6-9, wherein the sending unit is further configured to: After the decrypted information is successfully matched, the mobile terminal sends a control command to the in-vehicle terminal, and controls the in-vehicle terminal to open the car door. A method for opening a vehicle door, comprising: An encryption algorithm and a decryption algorithm for negotiating information between the vehicle terminal and the mobile terminal; Receiving the encrypted information sent by the mobile terminal; The received decryption algorithm is used to decrypt the received information and match the pre-stored information; If the information is successfully matched, the vehicle door is opened or a control command sent by the mobile terminal is received, and the car door is opened; The information includes user fingerprint information. The method of claim 11 wherein said encryption algorithm and decryption algorithm are asymmetric keys. The method of claim 11 wherein said encryption algorithm and said decryption algorithm are correspondingly and dynamically change at the same time. The method of claim 11 wherein said information further comprises identification information of said mobile terminal. The method according to any one of claims 11 to 14, wherein if the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or within a preset time period. Disconnecting from the mobile terminal. An in-vehicle terminal, comprising: a negotiating unit, configured as an encryption algorithm and a decryption algorithm for negotiating information with the mobile terminal; a receiving unit, configured to receive the encrypted information sent by the mobile terminal; a decryption unit configured to decrypt the received information using a negotiated decryption algorithm and to match the pre-stored information; Opening the unit, if the information is successfully matched, opening the car door; Or the receiving unit is further configured to receive a control command sent by the mobile terminal, instructing the opening unit to open a car door; The information includes user fingerprint information. The in-vehicle terminal according to claim 16, wherein the encryption algorithm and the decryption algorithm are asymmetric keys. The vehicle-mounted terminal according to claim 16, wherein the encryption algorithm and the decryption algorithm correspond to each other and dynamically change at the same time. The in-vehicle terminal according to claim 16, wherein the information further includes identification information of the mobile terminal. The vehicle-mounted terminal according to any one of claims 16 to 19, wherein the receiving unit is further configured to: If the information fails to match the preset number of times, the information sent by the mobile terminal is rejected within a preset time period or the connection with the mobile terminal is disconnected within a preset time period. A system, comprising: a mobile terminal according to any of claims 6-10; The vehicle-mounted terminal according to any one of claims 16 to 20.

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