WO2021160084A1

WO2021160084A1 - File transmission method and apparatus, electronic device, and readable storage medium

Info

Publication number: WO2021160084A1
Application number: PCT/CN2021/075987
Authority: WO
Inventors: 常文涛
Original assignee: 深圳市万普拉斯科技有限公司
Priority date: 2020-02-14
Filing date: 2021-02-08
Publication date: 2021-08-19
Also published as: CN113271324A

Abstract

Provided are a file transmission method and apparatus, an electronic device, and a readable storage medium, relating to the technical field of communications. The method comprises: first, acquiring, by means of a first communication connection with a first device, a first password stored by the first device; then encrypting first information, which comprises a second password and connection parameters of a second communication connection, according to the first password, and sending obtained first encrypted information to the first device by means of the first communication connection to establish the second communication connection with the first device, wherein the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than a second preset value; and finally, encrypting, according to the second password, second information comprising a target file, and sending obtained second encrypted information to the first device by means of the second communication connection, such that the first device obtains the target file. Therefore, transmitting encrypted connection parameters of a second communication connection and an encrypted target file can prevent information leakage.

Description

File transmission method, device, electronic equipment and readable storage medium

【Technical Field】

This application relates to the field of communication technology, and specifically, to a file transmission method, device, electronic device, and readable storage medium.

【Background technique】

At present, when two electronic devices are transferring files, one electronic device generally obtains connection parameters directly from the other electronic device, and then establishes a communication connection between the two electronic devices based on the connection parameters, and finally passes the file through the Communication connection for transmission. In the above process, there are security risks in connection parameters and file transmission.

[Summary of the invention]

In view of this, the purpose of this application is to provide a file transmission method, device, electronic device and readable storage medium.

In order to achieve the foregoing objectives, the technical solutions adopted in the embodiments of the present application are as follows:

In the first aspect, an embodiment of the present application provides a file transmission method, which is applied to an electronic device, and the method includes:

Establish a first communication connection with the first device, and obtain the first password stored by the first device through the first communication connection;

Encrypt the first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to establish a connection with the first device A second communication connection, wherein the first information includes a second password and connection parameters of the second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission of the second communication connection The speed is higher than the second preset value;

The second information is encrypted according to the second password to obtain second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device is After decrypting the second encrypted information according to the second password, the target file in the second information is obtained.

In the second aspect, an embodiment of the present application provides a file transmission method, which is applied to a sending device and a receiving device, and the method includes:

Establishing a first communication connection between the sending device and the receiving device, and obtaining the first password stored by the receiving device through the first communication connection;

The sending device encrypts the first information according to the first password to obtain the first encrypted information, and sends the first encrypted information to the receiving device through the first communication connection, wherein the first One piece of information includes a second password and connection parameters of a second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than a second preset value;

The receiving device establishes a second communication connection with the sending device according to the connection parameters of the second communication connection;

The sending device encrypts the second information according to the second password to obtain second encrypted information, and sends the second encrypted information to the receiving device through the second communication connection, so that the receiving device The device obtains the target file in the second information after decrypting the second encrypted information according to the second password.

In a third aspect, an embodiment of the present application provides a file transmission device, which is applied to an electronic device, and the device includes:

The first communication module is configured to establish a first communication connection with a first device, and obtain the first password stored by the first device through the first communication connection;

The first encryption module is configured to encrypt first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to Establish a second communication connection with the first device, wherein the first information includes a second password and connection parameters of the second communication connection, and the power consumption of the first communication connection is lower than a first preset value, so The transmission speed of the second communication connection is higher than the second preset value;

The second encryption module is configured to encrypt second information according to the second password to obtain second encrypted information, and send the second encrypted information to the first device through the second communication connection to Enabling the first device to obtain the target file in the second information after decrypting the second encrypted information according to the second password.

In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, the memory stores machine executable instructions that can be executed by the processor, and the processor can execute the machine executable instructions In order to realize the file transmission method described in any one of the foregoing embodiments.

In a fifth aspect, an embodiment of the present application provides a readable storage medium having a computer program stored thereon, and the computer program, when executed by a processor, implements the file transmission method according to any one of the foregoing embodiments.

In the file transmission method, device, electronic device, and readable storage medium provided by the embodiments of the present application, a first communication connection is first established with a first device, and then the first password stored by the first device is obtained through the first communication connection. Then encrypt the first information including the second password and the connection parameters of the second communication connection according to the first password to obtain the first encrypted information, and send the first encrypted information to the first device through the first communication connection, To establish a second communication connection with the first device. Wherein, the power consumption of the first communication connection is lower than the first preset value, and the transmission speed of the second communication connection is higher than the second preset value. Finally, the second information including the target file is encrypted according to the second password to obtain the second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device can pair according to the second password After the second encrypted information is decrypted, the target file is obtained. As a result, various passwords and second communication connection parameters can be transmitted through the first communication connection with relatively low power consumption, and the encrypted target file can be transmitted through the second communication connection with relatively high transmission speed, thereby reducing the possibility of information leakage , While ensuring the transmission efficiency of the target file.

In order to make the above-mentioned objectives, features and advantages of the present application more obvious and understandable, preferred embodiments are specifically described below in conjunction with the accompanying drawings.

【Explanation of the drawings】

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic block diagram of an electronic device provided by an embodiment of the present application;

FIG. 2 is one of the schematic flowcharts of the file transmission method provided by the embodiment of the present application;

FIG. 3 is a schematic flowchart of the sub-steps included in step S110 in FIG. 2;

FIG. 4 is a second schematic flowchart of a file transmission method provided by an embodiment of the present application;

FIG. 5 is the third schematic flowchart of a file transmission method provided by an embodiment of the present application;

FIG. 6 is one of the block diagrams of the file transmission device provided by the embodiment of the present application;

FIG. 7 is the second block diagram of the file transmission device provided by the embodiment of the present application.

Icon: 100-electronic equipment; 110-storage; 120-processor; 130-communication unit; 200-file transmission device; 210-first communication module; 220-first encryption module; 230-second encryption module; 250- Broadcast module; 260-second communication module; 270-first decryption module; 280-second decryption module.

【Detailed ways】

The following describes the technical solutions in the embodiments of the present application clearly and completely with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present application.

It should be noted that the terms "first" and "second" and other relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

Please refer to FIG. 1, which is a block diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 may be, but is not limited to, a smart phone, a personal computer (PC), or the like. An electronic device 100 can be used as both a sending device and a receiving device. The electronic device 100 includes a memory 110, a processor 120 and a communication unit 130. The components of the memory 110, the processor 120, and the communication unit 130 are directly or indirectly electrically connected to each other to realize data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines.

Among them, the memory 110 is used to store programs or data. The memory 110 may be, but is not limited to, a random access memory (Random Access Memory, RAM), a read only memory (Read Only Memory, ROM), and a programmable read-only memory (Programmable Read-Only Memory, PROM). Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM), etc.

The processor 120 is used to read/write data or programs stored in the memory 110 and execute corresponding functions. For example, a file transfer device 200 is stored in the memory 110, and the file transfer device 200 includes at least one software function module that can be stored in the memory 110 in the form of software or firmware. The processor 120 executes various functional applications and data processing by running software programs and modules stored in the memory 110, such as the file transmission device 200 in the embodiment of the present application, and realizes the file transmission in the embodiment of the present application. method.

The communication unit 130 is used to establish a communication connection between the electronic device 100 and other communication terminals through a network, and is used to send and receive data through the network.

It should be understood that the structure shown in FIG. 1 is only a schematic structural diagram of the electronic device 100, and the electronic device 100 may also include more or fewer components than those shown in FIG. Configuration. The components shown in FIG. 1 can be implemented by hardware, software, or a combination thereof.

Please refer to FIG. 2. FIG. 2 is one of the flowcharts of the file transmission method provided by the embodiment of the present application. The method is applied to the electronic device 100. The specific process of the file transfer method is described in detail below.

Step S110: Establish a first communication connection with a first device, and obtain a first password stored by the first device through the first communication connection.

Step S120: Encrypt the first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to communicate with the first device. A device establishes a second communication connection.

Wherein, the first information includes a second password and connection parameters of a second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than that of the second communication connection. default value.

Step S130: Encrypt second information according to the second password to obtain second encrypted information, and send the second encrypted information to the first device through the second communication connection, so that the first A device obtains the target file in the second information after decrypting the second encrypted information according to the second password.

In this embodiment, when the electronic device 100 needs to send a file to the first device, it may first establish a first communication connection with the first device, and then obtain the first password stored by the first device from the first device. Wherein, at this time, the electronic device 100 serves as a file sending device, and the first device serves as a file receiving device. Then, the electronic device 100 encrypts the second information according to the first password to obtain second encrypted information, and sends the second encrypted information to the first device through the first communication connection. The second information includes connection parameters of the electronic device 100 regarding the second communication connection. For example, if the second communication connection is a WiFi (Wireless Fidelity, wireless fidelity) connection, the second information may include WiFi. Name and WiFi password, etc.

Wherein, the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than a second preset value. The first preset value and the second preset value may be set according to actual requirements. Optionally, the first communication connection may be, but not limited to, based on BLE (Bluetooth Low Energy, Bluetooth Low Energy), LTE Direct, NFC (Near Field Communication) with low power consumption and high scanning speed. Distance wireless communication technology), iBeacon, etc.; the second communication connection may be, but not limited to, a WiFi connection.

After receiving the first encrypted information through the first communication connection, the first device may decrypt the first encrypted information according to the first password to obtain a connection parameter that includes the second communication connection First information. The first device may establish a second communication connection with the electronic device 100 according to the connection parameters of the second communication connection. Optionally, the first device may send a connection request for establishing a second communication connection to the electronic device 100 according to the connection parameters of the second communication connection, and the connection request may include a WiFi password; the electronic device 100 passes through By comparison, it is determined that the WiFi password in the connection request is the same as its own WiFi password, and then a second communication connection with the first device is established.

Optionally, in an implementation manner of this embodiment, the first password and the password used when decrypting the first encrypted information are symmetric passwords. That is, the electronic device 100 uses the first password to encrypt the first information to obtain the first encrypted information; the first device uses the first password to decrypt the first encrypted information to obtain the first information.

Optionally, in another implementation manner of this embodiment, the first password is a public key, and the password used when decrypting the first encrypted information is the private key corresponding to the public key. That is, the electronic device 100 obtains the public key of the first device from the first device, then uses the public key to encrypt the first information, and sends the encrypted first encrypted information to the The first device, wherein the electronic device 100 does not obtain the private key corresponding to the first password as the public key from the first device; the first device uses the private key corresponding to the third password as the public key Decrypt the first encrypted information to obtain the first information.

Optionally, after receiving the first encrypted information, the first device may first display a prompt message for prompting the user whether to receive the file. If the first device receives the user's confirmation to receive the file, it can establish the second communication connection with the electronic device 100 according to the connection parameters of the second communication connection.

In this embodiment, the first information may also include a second password, and the second password is used to encrypt files to be subsequently transmitted. Optionally, the first information may also include file description information of the target file to be transferred. After obtaining the first information, the first device may display the file description information so that the user can determine whether to receive the file. Optionally, the file description information may include, but is not limited to, the total number of target files (for example, 10 files), the total size of target files (for example, 10M), and so on.

The electronic device 100 may encrypt the second information according to the second password to obtain the second encrypted information. Wherein, the second information may include the target file to be sent, preview data of the target file to be sent, and the like. After determining that the electronic device 100 establishes a second communication connection with the first device, the electronic device 100 may send the second encrypted information to the first device through the second communication connection. After receiving the second encrypted information, the first device decrypts the second encrypted information according to the second password to obtain the second information. As a result, the target file can be transferred in an encrypted manner.

Optionally, the second password and the password used when decrypting the second encrypted information are symmetric passwords. That is, the electronic device 100 uses the second password to encrypt the second information to obtain the second encrypted information; the first device uses the second password to decrypt the second encrypted information to obtain the Second information.

As a result, the first communication connection with lower power consumption can be used to transmit various passwords and connection parameters of the second communication connection, and the second communication connection with faster transmission speed can be used to transmit files that need to be transmitted, thereby reducing the first device. The power consumption to establish the first communication connection and ensure the file transfer speed. Since the connection parameters and files of the second communication connection are encrypted, the possibility of leakage can also be reduced.

In this embodiment, if the first communication connection is an NFC-based communication connection, when the electronic device 100 is close to a device that needs to receive files, it can be determined that the device is the first device and communicate with the The first device establishes a first communication connection.

In this embodiment, when the first communication connection is a connection that needs to be established according to a broadcast packet, please refer to FIG. 3. FIG. 3 is a schematic flowchart of the sub-steps included in step S110 in FIG. 2. Step S110 may include sub-step S111 to sub-step S115.

In sub-step S111, at least one broadcast packet is obtained by scanning, and the signal strength of each broadcast packet is obtained.

In this embodiment, the electronic device 100 can scan for the device supporting the first communication connection according to a certain frequency, so as to obtain at least one broadcast packet and obtain the signal strength of each broadcast packet at the same time. The signal strength may be RSSI (Received Signal Strength Indication). Wherein, the scanning speed corresponding to the first communication connection is higher than a third preset value, and the third preset value can be set according to actual requirements. For example, the third preset value is the scanning speed corresponding to the second communication connection. As a result, broadcast packets can be scanned at a high scanning speed, and target files can be transferred at a high transmission speed.

After the device supporting the first communication connection starts the first communication connection function, it will send a broadcast packet about the connection parameters of the first communication connection at a certain frequency. The connection parameters of the first communication connection are determined by the actual connection mode. For example, if the first communication connection is a Bluetooth connection, after the device turns on the Bluetooth function, the device will send a BLE broadcast packet at a certain frequency. The BLE broadcast packet may include the connection parameters of the first communication connection. The connection parameters of may include MAC (Media Access Control, media access control) address information of the device.

In sub-step S112, a candidate broadcast package whose service identifier is a preset service identifier is screened out from the at least one broadcast package.

In this embodiment, after the broadcast package is obtained by scanning, the service identifier in each broadcast package including the service identifier can be compared with the preset service identifier to determine whether the broadcast package includes the service identifier. Whether the service identifier is the same as the preset service identifier. If they are the same, use the broadcast packet as a candidate broadcast packet. The service identifier indicates a certain service supported by the device. If the service is different, the service identifier is different. The electronic device 100 may also include the preset service identifier.

Wherein, the candidate broadcast package may also include the device identification, device name, and connection parameters of the first communication connection of the scanned device. The device identifier represents the unique identifier of the electronic device 100, and may be generated by a GUID (Globally Unique Identifier) algorithm; the device name may be a name set by a user.

Sub-step S113, according to the signal strength of each candidate broadcast packet, sort the device names corresponding to the selected candidate broadcast packets to obtain a scan list.

In sub-step S114, the scan list is displayed, and the scanned device corresponding to the received selection operation is taken as the first device.

After the candidate broadcast packages are determined, the device names corresponding to each candidate broadcast package obtained after screening are sorted according to the signal strength corresponding to each candidate broadcast package, thereby obtaining a scan list. Wherein, if the same device name is included in the scan list, the device identifiers corresponding to the same device name are different. Then, the scan list is displayed, so that the user can determine a certain scanned device as the first device according to the scan list. Optionally, the device names in the scan list can be arranged in descending order of signal strength, so that the device name of the scanned device that is most likely to be determined by the user as the first device can be displayed in the highest priority. Location, so that the user can quickly select the first device.

Sub-step S115, establishing a first communication connection with the first device according to the connection parameters of the first communication connection in the broadcast packet of the first device.

In this embodiment, if the scan continues after the scan list is obtained, it can be determined whether to update the scan list that has been obtained according to the newly obtained broadcast packet. If it needs to be updated, the scan list that has been obtained is updated according to the newly obtained broadcast packet and the corresponding signal strength.

When a new broadcast package is obtained, it may first be determined whether the new broadcast package includes a service identifier and whether the included service identifier is the preset service identifier. If the new broadcast package does not include the service identifier, or the service identifier in the new broadcast package is not the preset service identifier, it is determined that there is no newly-added scanned device, and there is no need to perform a scan on the obtained scan list. renew.

If the service identifier in the new broadcast package is the preset service identifier, it is determined whether the device identifier included in the new broadcast package is the device identifier corresponding to the device name in the obtained scan list. If it is, it is determined that there is no newly-added scanned device, and the obtained scan list does not need to be updated.

If not, it is determined that there is a newly-added scanned device, and the device name of the newly-added scanned device can be added to the obtained scan list according to the signal strength corresponding to the newly-added scanned device. For example, the device names in the obtained scan list are sorted according to the signal strength from largest to smallest. Suppose the obtained scan list includes the following content: device 1, device 2, device 3; if the newly-added scanned device 4 corresponds to The signal strength is between the signal strengths of device 1 and device 2, and the device name of the scanned device 4 can be recorded between device 1 and device 2, without modifying the original order, so that the device name order is Scan list of device 1, device 4, device 2, and device 3.

If the scan list includes the device name of the scanned device that has not been scanned for the preset number of consecutive times, the device name of the scanned device that has not been scanned for the preset number of consecutive times is deleted from the scan list. This prevents useless device names from being included in the scan list. Wherein, the preset number of times can be set according to actual needs, for example, set to 3 times.

Please refer to FIG. 4, which is a second schematic flowchart of a file transmission method provided by an embodiment of the present application. The method may further include step S150 to step S190.

In step S150, the broadcast packet is sent.

In this embodiment, when the electronic device 100 is used as a file receiving device and the second device is used as a file sending device, the electronic device 100 may send broadcast packets at a certain frequency after enabling the function of the first communication connection . Wherein, the broadcast package may include a service identifier, a device identifier, and connection parameters of the first communication connection. The service identifier in the broadcast package may be a preset service identifier. Optionally, the broadcast package may also include the device name. The power consumption of the first communication connection is lower than the first preset value, thereby ensuring that the electronic device 100 as a file receiving device uses low power consumption for sending broadcast packets, thereby reducing the need for the electronic device 100 to establish the first communication connection. Power consumption used by a communication connection. In other words, this method can reduce the power consumption of the electronic device 100 to maintain the state discovered by the second device.

Step S160: When a connection request sent by the second device according to the connection parameters of the first communication connection is received, establish a first communication connection with the second device, so that the second device can pass through the first communication The third password stored in the electronic device 100 is obtained by connecting.

Step S170: After receiving the third encrypted information obtained by encrypting the third information according to the third password and sent by the second device through the first communication connection, perform the The third encrypted information is decrypted, the third information in the third encrypted information is obtained, and the user is prompted whether to receive the file.

Optionally, in an implementation manner of this embodiment, the third password and the password used when decrypting the third encrypted information are symmetric passwords. In another implementation manner of this embodiment, the third password is a public key, that is to say, the third encrypted information is used by the second device to pair the third password as the public key. The third information is encrypted and obtained. At this time, the electronic device 100 can decrypt the third encrypted information according to the private key corresponding to the third password, so as to obtain the third information. The electronic device 100 may pre-store a digital certificate using a public encryption technology, and use the public key of the digital certificate as the third password. Wherein, the third information may include a fourth password and connection parameters of the second communication connection. Optionally, the third information may also include file description information of the target file to be transferred.

Step S180: If the user confirms the file reception operation, establish a second communication connection with the second device according to the connection parameters of the second communication connection.

Step S190: Receive fourth encrypted information obtained by encrypting fourth information according to the fourth password sent by the second device through the second communication connection, and encrypt the fourth information according to the fourth password The information is decrypted to obtain the target file in the fourth information.

For the description of step S150 to step S190, please refer to the specific description of step S110 to step S130 above, which will not be repeated here.

Please refer to FIG. 5. FIG. 5 is the third flowchart of the file transmission method provided by the embodiment of the present application. The method is applied to sending equipment and receiving equipment. The following describes the flow of the file transmission method for the sending device and the receiving device.

Step S210: The sending device establishes a first communication connection with the receiving device, and obtains a first password stored by the receiving device through the first communication connection.

Step S220: The sending device encrypts the first information according to the first password to obtain first encrypted information, and sends the first encrypted information to the receiving device through the first communication connection.

Step S230: The receiving device establishes a second communication connection with the sending device according to the connection parameters of the second communication connection.

Step S240: The sending device encrypts the second information according to the second password to obtain second encrypted information, and sends the second encrypted information to the receiving device through the second communication connection, so that The receiving device obtains the target file in the second information after decrypting the second encrypted information according to the second password.

Regarding the description of the file transmission method applied to the sending device and the receiving device, reference may be made to the specific description of the file transmission method corresponding to the electronic device 100 above, which will not be repeated here.

In order to perform the corresponding steps in the above-mentioned embodiments and each possible manner, an implementation manner of the file transmission apparatus 200 is given below. Optionally, the file transmission apparatus 200 may use the components of the electronic device 100 shown in FIG. 1 structure. Further, please refer to FIG. 6, which is one of the block diagrams of the file transmission apparatus 200 provided in an embodiment of the present application. The file transmission apparatus 200 is applied to the electronic device 100. It should be noted that the basic principles and technical effects of the file transmission device 200 provided in this embodiment are the same as those of the above-mentioned embodiment. For a brief description, for parts not mentioned in this embodiment, please refer to the above-mentioned embodiment. In the corresponding content. The file transmission device 200 may include: a first communication module 210, a first encryption module 220, and a second encryption module 230.

The first communication module 210 is configured to establish a first communication connection with a first device, and obtain a first password stored by the first device through the first communication connection.

The first encryption module 220 is configured to encrypt first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first encrypted information through the first communication connection. Device to establish a second communication connection with the first device. Wherein, the first information includes a second password and connection parameters of a second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than that of the second communication connection. default value.

The second encryption module 230 is configured to encrypt second information according to the second password to obtain second encrypted information, and send the second encrypted information to the first through the second communication connection. Device, so that the first device obtains the target file in the second information after decrypting the second encrypted information according to the second password.

Please refer to FIG. 7. FIG. 7 is the second block diagram of the file transmission apparatus 200 provided by an embodiment of the present application. The file transmission device 200 may further include: a broadcasting module 250, a second communication module 260, a first decryption module 270, and a second decryption module 280.

The broadcast module 250 is used to send broadcast packets. Wherein, the broadcast package includes a service identifier, a device identifier, and connection parameters of the first communication connection.

The second communication module 260 is configured to establish a first communication connection with the second device when receiving a connection request sent by the second device according to the connection parameters of the first communication connection, so that the second device The device obtains the third password stored by the electronic device 100 through the first communication connection.

The first decryption module 270 is configured to decrypt the third encrypted information according to the third password after receiving the third encrypted information sent by the second device through the first communication connection to obtain The third information in the third encrypted information, and prompts the user whether to receive the file. Wherein, the third information includes a fourth password and connection parameters of the second communication connection.

The second communication module 260 is further configured to establish a second communication connection with the second device according to the connection parameters of the second communication connection when receiving the user's confirmation to receive the file.

The second decryption module 280 is configured to receive fourth encrypted information obtained by encrypting fourth information according to the fourth password sent by the second device through the second communication connection, and according to the fourth The password decrypts the fourth encrypted information to obtain the target file in the fourth information.

Optionally, the above-mentioned modules can be stored in the memory 110 shown in FIG. 1 in the form of software or firmware (Firmware) or solidified in the operating system (OS) of the electronic device 100, and can be processed by the processing shown in FIG. 1器120 executes. At the same time, data, program codes, etc. required to execute the above-mentioned modules may be stored in the memory 110.

The embodiment of the present application also provides a readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the file transmission method described in the item is implemented.

In summary, the embodiments of the present application provide a file transmission method, device, electronic device, and readable storage medium. First, establish a first communication connection with the first device, and then obtain the first password stored by the first device through the first communication connection. Then encrypt the first information including the second password and the connection parameters of the second communication connection according to the first password to obtain the first encrypted information, and send the first encrypted information to the first device through the first communication connection, To establish a second communication connection with the first device. Wherein, the power consumption of the first communication connection is lower than the first preset value, and the transmission speed of the second communication connection is higher than the second preset value. Finally, the second information including the target file is encrypted according to the second password to obtain the second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device can pair according to the second password After the second encrypted information is decrypted, the target file is obtained. As a result, various passwords and second communication connection parameters can be transmitted through the first communication connection with relatively low power consumption, and the encrypted target file can be transmitted through the second communication connection with relatively high transmission speed, thereby reducing the possibility of information leakage , And ensure the transmission efficiency of the target file.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions, and functions of the devices, methods, and computer program products according to multiple embodiments of the present application. operate. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the module, program segment, or part of the code contains one or more functions for realizing the specified logical function. Executable instructions. It should also be noted that in some alternative implementations, the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two consecutive blocks can actually be executed in parallel, or they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions Or it can be realized by a combination of dedicated hardware and computer instructions.

In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A file transmission method, characterized in that it is applied to an electronic device, and the method includes:

Establish a first communication connection with the first device, and obtain the first password stored by the first device through the first communication connection;

Encrypt the first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to establish a connection with the first device A second communication connection, wherein the first information includes a second password and connection parameters of the second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission of the second communication connection The speed is higher than the second preset value;

The second information is encrypted according to the second password to obtain second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device is After decrypting the second encrypted information according to the second password, the target file in the second information is obtained.
The method according to claim 1, wherein the establishing a first communication connection with the first device comprises:

At least one broadcast packet is obtained by scanning, and the signal strength of each broadcast packet is obtained, wherein the scanning speed corresponding to the first communication connection is higher than the third preset value;

A candidate broadcast package whose service identifier is a preset service identifier is filtered from the at least one broadcast package, where the candidate broadcast package includes the service identifier, device identifier, device name, and first communication connection of the scanned device The connection parameters;

According to the signal strength of each candidate broadcast package, sort the device names corresponding to the selected candidate broadcast packages to obtain a scan list;

Display the scan list, and use the scanned device corresponding to the received selection operation as the first device;

Establish a first communication connection with the first device according to the connection parameters of the first communication connection in the broadcast packet of the first device.
The method according to claim 2, wherein the establishing a first communication connection with the first device further comprises:

When continuing to scan for new broadcast packets, determine whether there is a newly-added scanned device, and determine whether the scan list includes the device name of the scanned device that has not been scanned for a preset number of consecutive times. Among them, the newly-added The broadcast packet of the scanned device includes the preset service identifier;

If there is a newly-added scanned device, add the device name of the newly-added scanned device to the scan list according to the signal strength corresponding to the newly-added scanned device;

If the scan list includes the device name of the scanned device that has not been scanned for the preset number of consecutive times, the device name of the scanned device that has not been scanned for the preset number of consecutive times is deleted from the scan list.
The method according to claim 1, wherein the method further comprises:

Sending a broadcast packet, where the broadcast packet includes a service identifier, a device identifier, and connection parameters of the first communication connection;

When a connection request sent by the second device according to the connection parameters of the first communication connection is received, a first communication connection is established with the second device, so that the second device obtains all data through the first communication connection. The third password stored in the electronic device;

After receiving the third encrypted information obtained by encrypting the third information according to the third password from the second device through the first communication connection, encrypt the third information according to the third password Information is decrypted, the third information in the third encrypted information is obtained, and the user is prompted whether to receive the file, where the third information includes the fourth password and the connection parameters of the second communication connection;

If the user's confirmation of receiving the file is received, establishing a second communication connection with the second device according to the connection parameters of the second communication connection;

Receive fourth encrypted information obtained by encrypting fourth information according to the fourth password sent by the second device through the second communication connection, and decrypt the fourth encrypted information according to the fourth password , To obtain the target file in the fourth information.
The method according to claim 4, wherein the third password is a public key, and the third encrypted information is compared to the third information by the second device using the third password as the public key. Obtained by encryption, and decrypting the third encrypted information according to the third password includes:

Decrypt the third encrypted information according to the private key corresponding to the third password.
A file transmission method, characterized in that it is applied to a sending device and a receiving device, and the method includes:

Establishing a first communication connection between the sending device and the receiving device, and obtaining the first password stored by the receiving device through the first communication connection;

The sending device encrypts the first information according to the first password to obtain the first encrypted information, and sends the first encrypted information to the receiving device through the first communication connection, wherein the first One piece of information includes a second password and connection parameters of a second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission speed of the second communication connection is higher than a second preset value;

The receiving device establishes a second communication connection with the sending device according to the connection parameters of the second communication connection;

The sending device encrypts the second information according to the second password to obtain second encrypted information, and sends the second encrypted information to the receiving device through the second communication connection, so that the receiving device The device obtains the target file in the second information after decrypting the second encrypted information according to the second password.
The method according to claim 6, wherein the establishing a first communication connection between the sending device and the receiving device comprises:

The sending device obtains at least one broadcast packet through scanning, and obtains the signal strength of each broadcast packet, wherein the scanning speed corresponding to the first communication connection is higher than a third preset value;

The sending device filters out candidate broadcast packages whose service identifiers are preset service identifiers from the at least one broadcast package, where the candidate broadcast packages include the service identifier, device identifier, device name, and device name of the scanned device. Connection parameters of the first communication connection;

The sending device sorts the device names corresponding to the selected candidate broadcast packets according to the signal strength of each candidate broadcast packet to obtain a scan list;

The sending device displays the scan list, and uses the scanned device corresponding to the received selection operation as the receiving device;

The sending device establishes a first communication connection with the receiving device according to the connection parameters of the first communication connection in the broadcast packet of the receiving device.
The method according to claim 7, wherein the establishment of the first communication connection between the sending device and the receiving device further comprises:

When the sending device continues to scan for new broadcast packets, it determines whether there is a newly-added scanned device, and determines whether the scan list includes the device name of the scanned device that has not been scanned for a preset number of consecutive times, where , The newly-added broadcast packet of the scanned device includes the preset service identifier;

If there is a newly-added scanned device in the sending device, add the device name of the newly-added scanned device to the scan list according to the signal strength corresponding to the newly-added scanned device;

If the scan list includes the device name of the scanned device that has not been scanned for the preset number of consecutive times, the sending device removes the device name of the scanned device that has not been scanned for the preset number of consecutive times from the scan list delete.
A file transmission device, characterized in that it is applied to electronic equipment, and the device includes:

The first communication module is configured to establish a first communication connection with a first device, and obtain the first password stored by the first device through the first communication connection;

The first encryption module is configured to encrypt first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to Establish a second communication connection with the first device, wherein the first information includes a second password and connection parameters of the second communication connection, and the power consumption of the first communication connection is lower than a first preset value, so The transmission speed of the second communication connection is higher than the second preset value;

The second encryption module is configured to encrypt second information according to the second password to obtain second encrypted information, and send the second encrypted information to the first device through the second communication connection to Enabling the first device to obtain the target file in the second information after decrypting the second encrypted information according to the second password.
The device according to claim 9, wherein the device further comprises:

The broadcast module is used to send a broadcast packet, where the broadcast packet includes a service identifier, a device identifier, and connection parameters of the first communication connection;

The second communication module is configured to establish a first communication connection with the second device when a connection request sent by the second device according to the connection parameters of the first communication connection is received, so that the second device can pass through all the connections. Acquiring the third password stored by the electronic device through the first communication connection;

The first decryption module is configured to, after receiving the third encrypted information obtained by encrypting the third information according to the third password and sent by the second device through the first communication connection, according to the third The password decrypts the third encrypted information, obtains the third information in the third encrypted information, and prompts the user whether to receive the file, wherein the third information includes the fourth password and the connection parameters of the second communication connection ；

The second communication module is further configured to establish a second communication connection with the second device according to the connection parameters of the second communication connection when receiving the user's confirmation to receive the file;

The second decryption module is configured to receive the fourth encrypted information obtained by encrypting the fourth information according to the fourth password sent by the second device through the second communication connection, and verify the information obtained by encrypting the fourth information according to the fourth password. The fourth encrypted information is decrypted to obtain the target file in the fourth information.
An electronic device, characterized by comprising a processor and a memory, the memory storing machine executable instructions that can be executed by the processor, and the processor can execute the machine executable instructions to implement a file transmission method , The method includes:

Establish a first communication connection with the first device, and obtain the first password stored by the first device through the first communication connection;

Encrypt the first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to establish a connection with the first device A second communication connection, wherein the first information includes a second password and connection parameters of the second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission of the second communication connection The speed is higher than the second preset value;

The second information is encrypted according to the second password to obtain second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device is After decrypting the second encrypted information according to the second password, the target file in the second information is obtained.
The electronic device according to claim 11, wherein the establishing a first communication connection with the first device comprises:

At least one broadcast packet is obtained by scanning, and the signal strength of each broadcast packet is obtained, wherein the scanning speed corresponding to the first communication connection is higher than the third preset value;

A candidate broadcast package whose service identifier is a preset service identifier is filtered from the at least one broadcast package, where the candidate broadcast package includes the service identifier, device identifier, device name, and first communication connection of the scanned device The connection parameters;

According to the signal strength of each candidate broadcast package, sort the device names corresponding to the selected candidate broadcast packages to obtain a scan list;

Display the scan list, and use the scanned device corresponding to the received selection operation as the first device;

Establish a first communication connection with the first device according to the connection parameters of the first communication connection in the broadcast packet of the first device.
The electronic device according to claim 12, wherein the establishing a first communication connection with the first device further comprises:

When continuing to scan for new broadcast packets, determine whether there is a newly-added scanned device, and determine whether the scan list includes the device name of the scanned device that has not been scanned for a preset number of consecutive times. Among them, the newly-added The broadcast packet of the scanned device includes the preset service identifier;

If there is a newly-added scanned device, add the device name of the newly-added scanned device to the scan list according to the signal strength corresponding to the newly-added scanned device;

If the scan list includes the device name of the scanned device that has not been scanned for the preset number of consecutive times, the device name of the scanned device that has not been scanned for the preset number of consecutive times is deleted from the scan list.
The electronic device according to claim 11, wherein the method further comprises:

Sending a broadcast packet, where the broadcast packet includes a service identifier, a device identifier, and connection parameters of the first communication connection;

When a connection request sent by the second device according to the connection parameters of the first communication connection is received, a first communication connection is established with the second device, so that the second device obtains all data through the first communication connection. The third password stored in the electronic device;

After receiving the third encrypted information obtained by encrypting the third information according to the third password from the second device through the first communication connection, encrypt the third information according to the third password Information is decrypted, the third information in the third encrypted information is obtained, and the user is prompted whether to receive the file, where the third information includes the fourth password and the connection parameters of the second communication connection;

If the user's confirmation of receiving the file is received, establishing a second communication connection with the second device according to the connection parameters of the second communication connection;

Receive fourth encrypted information obtained by encrypting fourth information according to the fourth password sent by the second device through the second communication connection, and decrypt the fourth encrypted information according to the fourth password , To obtain the target file in the fourth information.
The electronic device according to claim 14, wherein the third password is a public key, and the third encrypted information is used by the second device to use the third password as a public key to compare to the third The information is encrypted, and the decryption of the third encrypted information according to the third password includes:

Decrypt the third encrypted information according to the private key corresponding to the third password.
A readable storage medium having a computer program stored thereon, wherein the computer program implements a file transmission method when the computer program is executed by a processor, and the method includes:

Establish a first communication connection with the first device, and obtain the first password stored by the first device through the first communication connection;

Encrypt the first information according to the first password to obtain first encrypted information, and send the first encrypted information to the first device through the first communication connection to establish a connection with the first device A second communication connection, wherein the first information includes a second password and connection parameters of the second communication connection, the power consumption of the first communication connection is lower than a first preset value, and the transmission of the second communication connection The speed is higher than the second preset value;

The second information is encrypted according to the second password to obtain second encrypted information, and the second encrypted information is sent to the first device through the second communication connection, so that the first device is After decrypting the second encrypted information according to the second password, the target file in the second information is obtained.
The readable storage medium according to claim 16, wherein the establishing a first communication connection with the first device comprises:

At least one broadcast packet is obtained by scanning, and the signal strength of each broadcast packet is obtained, wherein the scanning speed corresponding to the first communication connection is higher than the third preset value;

A candidate broadcast package whose service identifier is a preset service identifier is filtered from the at least one broadcast package, where the candidate broadcast package includes the service identifier, device identifier, device name, and first communication connection of the scanned device The connection parameters;

According to the signal strength of each candidate broadcast package, sort the device names corresponding to the selected candidate broadcast packages to obtain a scan list;

Display the scan list, and use the scanned device corresponding to the received selection operation as the first device;

Establish a first communication connection with the first device according to the connection parameters of the first communication connection in the broadcast packet of the first device.
The readable storage medium according to claim 17, wherein the establishing a first communication connection with the first device further comprises:

When continuing to scan for new broadcast packets, determine whether there is a newly-added scanned device, and determine whether the scan list includes the device name of the scanned device that has not been scanned for a preset number of consecutive times. Among them, the newly-added The broadcast packet of the scanned device includes the preset service identifier;

If there is a newly-added scanned device, add the device name of the newly-added scanned device to the scan list according to the signal strength corresponding to the newly-added scanned device;

If the scan list includes the device name of the scanned device that has not been scanned for the preset number of consecutive times, the device name of the scanned device that has not been scanned for the preset number of consecutive times is deleted from the scan list.
The readable storage medium according to claim 16, wherein the method further comprises:

Sending a broadcast packet, where the broadcast packet includes a service identifier, a device identifier, and connection parameters of the first communication connection;

When a connection request sent by the second device according to the connection parameters of the first communication connection is received, a first communication connection is established with the second device, so that the second device can obtain electronic information through the first communication connection. The third password stored by the device;

After receiving the third encrypted information obtained by encrypting the third information according to the third password from the second device through the first communication connection, encrypt the third information according to the third password Information is decrypted, the third information in the third encrypted information is obtained, and the user is prompted whether to receive the file, where the third information includes the fourth password and the connection parameters of the second communication connection;

If the user's confirmation of receiving the file is received, establishing a second communication connection with the second device according to the connection parameters of the second communication connection;

Receive fourth encrypted information obtained by encrypting fourth information according to the fourth password sent by the second device through the second communication connection, and decrypt the fourth encrypted information according to the fourth password , To obtain the target file in the fourth information.
The readable storage medium according to claim 19, wherein the third password is a public key, and the third encrypted information is used by the second device to use the third password as the public key to pair the The third information is encrypted and obtained, and the decrypting the third encrypted information according to the third password includes:

Decrypt the third encrypted information according to the private key corresponding to the third password.