CN104507080A - File processing method and terminal - Google Patents

Abstract

The embodiment of the present invention discloses a file processing method, including: when the source terminal intends to transmit a target file to the target terminal, acquiring the identification information of the target terminal; the source terminal identifies whether the target terminal is a legal terminal; if yes, the source terminal encrypts the target file to be transmitted according to the identification information; the source terminal sends the encrypted target file to the target terminal. The embodiment of the invention also discloses a terminal. With the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, the source terminal automatically sets a key according to the identification information of the target terminal, and the operation is simple.

Description

A file processing method and terminal

technical field

The invention relates to the technical field of computers, in particular to a file processing method and a terminal.

Background technique

With the development of communication technology, the transmission of information and data is becoming more and more convenient, and the ways for people to obtain information are also becoming wider and wider, for example, file transmission based on Bluetooth or infrared. Usually, in order to avoid the leakage of important data such as business secrets and personal privacy, the user can encrypt the data file to be transmitted when transferring the data file.

When the existing method uses encryption to transmit files, the sender and the receiver need to agree on a key in advance, and manually input the key for encryption and decryption, which is cumbersome and affects user experience.

Contents of the invention

Embodiments of the present invention provide a file processing method and a terminal. If the target terminal is a legal terminal identified by the source terminal, the source terminal automatically sets a key according to the identification information of the target terminal, and the operation is simple.

In a first aspect, an embodiment of the present invention provides a file processing method, including:

When the source terminal intends to transmit the target file to the target terminal, obtain the identification information of the target terminal;

identifying, by the source terminal, whether the target terminal is a legitimate terminal according to the identification information;

If yes, the source terminal encrypts the target file to be transmitted according to the identification information;

The source terminal sends the encrypted target file to the target terminal.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the identification information includes a mobile phone number or an instant messaging account.

With reference to the first possible implementation of the first aspect, in a second possible implementation of the first aspect, if the identification information is a mobile phone number, the source terminal identifies the target terminal according to the identification information Whether it is a legal terminal, including:

The source terminal queries whether there is contact information corresponding to the mobile phone number in the local address book;

If it exists, the source terminal identifies that the target terminal is a legitimate terminal;

If not, the source terminal recognizes that the target terminal is not a legitimate terminal.

With reference to the first possible implementation of the first aspect, in a third possible implementation of the first aspect, if the identification information is an instant messaging account, the source terminal identifies the target according to the identification information Whether the terminal is a legal terminal, including:

The source terminal queries whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account;

If it exists, the source terminal identifies that the target terminal is a legitimate terminal;

If not, the source terminal recognizes that the target terminal is not a legitimate terminal.

With reference to the first aspect and the second or third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the source terminal identifies whether the target terminal is After being a legal terminal, the method also includes:

If the source terminal recognizes that the target terminal is not a legitimate terminal, it outputs prompt information to prompt the user whether to confirm the transmission.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, after the prompt information is output, the method further includes:

If the instruction for confirming the transmission is received, the source terminal encrypts the target file to be transmitted according to the preset key;

The source terminal sends the encrypted target file and the preset key to the target terminal.

In a second aspect, an embodiment of the present invention provides a file processing method, including:

When the target terminal needs to receive the target file to be transmitted by the source terminal, obtain the identification information of the target terminal;

The target terminal sends the identification information to the source terminal, so that the source terminal encrypts the target file according to the identification information;

The target terminal receives the target file sent by the source terminal;

If the target terminal is a legitimate terminal identified by the source terminal, the target terminal decrypts the target file according to the identification information.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes:

If the target terminal is not a legal terminal identified by the source terminal, receiving the target file and the preset key sent by the source terminal;

The target file is decrypted according to the preset key.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the identification information includes a mobile phone number or an instant messaging account.

In a third aspect, an embodiment of the present invention provides a terminal, including:

The first obtaining module is used for obtaining the identification information of the target terminal when the source terminal intends to transmit the target file to the target terminal;

An identification module, configured to identify whether the target terminal is a legal terminal according to the identification information;

An encryption module, configured to encrypt the target file to be transmitted according to the identification information if the target terminal is a legitimate terminal;

The first sending module is configured to send the encrypted target file to the target terminal.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the identification information includes a mobile phone number or an instant messaging account.

In combination with the first possible implementation of the third aspect, in the second possible implementation of the third aspect, if the identification information is a mobile phone number, the identification module is specifically configured to:

Query whether there is contact information corresponding to the mobile phone number in the local address book;

If it exists, identifying that the target terminal is a legitimate terminal;

If not, it is identified that the target terminal is not a legitimate terminal.

In combination with the first possible implementation of the third aspect, in the fourth possible implementation of the third aspect, if the identification information is an instant messaging account, the identification module is specifically configured to:

Querying whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account;

If it exists, identifying that the target terminal is a legitimate terminal;

If not, it is identified that the target terminal is not a legitimate terminal.

With reference to the third aspect and the second or third possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the terminal further includes:

An output module, configured to output prompt information to prompt the user whether to confirm the transmission if the target terminal is not a legal terminal.

With reference to the fourth possible implementation of the third aspect, in the fifth possible implementation of the third aspect, the encryption module is further configured to: The transferred target files are encrypted;

The first sending module is further configured to send the encrypted target file and the preset key to the target terminal.

In a fourth aspect, an embodiment of the present invention provides a terminal, including:

The second obtaining module is used for obtaining the identification information of the target terminal when the target terminal needs to receive the target file to be transmitted by the source terminal;

A second sending module, configured to send the identification information to the source terminal, so that the source terminal encrypts the target file according to the identification information;

a receiving module, configured to receive the target file sent by the source terminal;

A decryption module, configured to decrypt the target file according to the identification information if the target terminal is a legitimate terminal identified by the source terminal.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the receiving module is further configured to receive the target terminal sent by the source terminal if the target terminal is not a legitimate terminal identified by the source terminal. files and preset keys;

The decryption module is further configured to decrypt the target file according to the preset key.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the identification information includes a mobile phone number or an instant messaging account.

Implementing the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, the source terminal obtains the identification information of the target terminal; and identifies whether the target terminal is a legal terminal according to the obtained identification information of the target terminal; The identification information encrypts the target file to be transmitted; and sends the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is a schematic flowchart of a file processing method provided by an embodiment of the present invention;

Fig. 2 is another schematic flowchart of a file processing method provided by an embodiment of the present invention;

Fig. 3 is another schematic flowchart of a file processing method provided by an embodiment of the present invention;

Fig. 4 is another schematic flowchart of a file processing method provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 6 is another schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 7 is another schematic structural diagram of a terminal provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiments of the present invention provide a file processing method, a source terminal, and a target terminal. When the source terminal needs to transmit a target file to the target terminal, the source terminal obtains the identification information of the target terminal; and identifies Whether the target terminal is a legitimate terminal; if so, encrypt the target file to be transmitted according to the identification information; send the encrypted target file to the target terminal, thereby completing the transmission of the target file. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. The target file is decrypted, and the operation is simple. A file processing method, a source terminal, and a target terminal provided by an embodiment of the present invention will be described in detail below in conjunction with accompanying drawings 1 to 7 .

As we all know, two terminals are required to transfer files. For the convenience of description, the embodiments of the present invention refer to these two terminals as "source terminal" and "target terminal". The terminals can be computers, mobile phones, IPADs and other devices. The embodiment of the invention does not limit the specific type of the terminal, and any device that can implement the embodiment of the invention belongs to the scope of protection required by the embodiment of the invention. The processing flow of a file processing method is introduced below from the "source terminal" side.

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a file processing method provided by an embodiment of the present invention. In an embodiment of the present invention, the method may include the following steps.

S101: Acquire identification information of the target terminal when the source terminal intends to transmit a target file to the target terminal.

Due to the existence of network viruses or hackers, the security of data files is always threatened during the process of file transfer. If personal information or business secrets are leaked out, it will cause irreparable losses to users. Sex is getting more and more important. Generally, in order to improve the security of the terminal during the file transfer process, the file transfer can be performed in an encrypted manner. In this embodiment of the present invention, the scenario of transmitting data files in an encrypted manner is taken as an example, and the file transmission may be performed through Bluetooth, infrared, or data lines. Specifically, this embodiment of the present invention does not make a limitation.

In a specific implementation, when the source terminal intends to transmit the target file to the target terminal, it acquires the identification information of the target terminal. For example, as an implementation, when the source terminal needs to transfer a target file to the target terminal, it sends a file transfer request to the target terminal, so that the target terminal returns the identification information of the target terminal according to the request, so that the source terminal obtains the target terminal's Identification information. It is worth noting that the identification information can be the mobile phone number or instant messaging account of the target terminal, of course, it can also be other information such as an identifier, as long as the source terminal and the target terminal can establish a certain relationship through the identifier can be used as the identification information. Specifically, the embodiments of the present invention are not limited.

S102: The source terminal identifies whether the target terminal is a legitimate terminal according to the identification information.

After the source terminal obtains the identification information of the target terminal, it identifies whether the target terminal is a legal terminal according to the obtained identification information. If the target terminal is a legal terminal identified by the source terminal, it further encrypts the target file; if the target terminal is not the source terminal The legal terminal identified by the terminal can output prompt information to prompt the user whether to confirm the target file to be transferred, thereby improving the security of the file during transfer.

As an example, assuming that the identification information is a mobile phone number, after the source terminal obtains the mobile phone number of the target terminal, it can query whether there is contact information corresponding to the mobile phone number in the local address book; if it exists, it can identify that the target terminal is legal terminal; if it does not exist, it is identified that the target terminal is not a legitimate terminal. Therefore, whether the target terminal is a legal terminal is identified by checking whether the mobile phone number of the target terminal is stored in the address book of the source terminal. There may be potential risks when transferring data files, so a prompt message is output to remind the user whether to confirm the transfer of the target file.

As another example, assuming that the identification information is an instant messaging account, after the source terminal obtains the instant messaging account of the target terminal, it can query whether the friend information corresponding to the instant messaging account exists in the friend relationship chain of the source terminal; It is identified that the target terminal is a legal terminal; if it does not exist, it is recognized that the target terminal is not a legal terminal. Therefore, through the instant messaging account of the source terminal and the instant messaging account of the target terminal, it is determined whether the target terminal is a legal terminal identified by the source terminal.

It is worth noting that if the identification information is other identifiers, similar processing can be performed. The source terminal has established a friend relationship chain for the identifier in advance, and after obtaining the identifier of the target terminal, it queries whether the identifier of the target terminal exists in the In the friendship chain, if it exists, it is recognized that the target terminal is a legal terminal; if it does not exist, it is recognized that the target terminal is not a legal terminal. Certainly, other methods may be used for the source terminal to identify whether the target terminal is a legitimate terminal according to the identification information. Specifically, this embodiment of the present invention does not make a limitation, and the above is only an example.

S103: If yes, the source terminal encrypts the target file to be transmitted according to the identification information.

If it is recognized that the target terminal is a legal terminal identified by the source terminal, the source terminal encrypts the target file to be transmitted according to the identification information of the target terminal. It is worth noting that, in specific implementation, the identification information may be directly used as the encryption password of the target file; or the identification information may be used as a key, and an encryption algorithm is used to set the encryption password according to the key. Specifically, the embodiment of the present invention No limit. If the former encryption is used, the target terminal can directly decrypt the target file according to the identification information; if the latter is used, the target terminal can use the encryption algorithm corresponding to the source terminal to obtain the original encryption password according to its own identification information, and then use The encrypted password decrypts the target file. Therefore, the latter is more secure, and users can use the latter for encryption when transferring very important data files.

S104: The source terminal sends the encrypted target file to the target terminal.

After the source terminal encrypts the target file to be transmitted, it sends the encrypted target file to the target terminal. The target terminal receives the target file sent by the source terminal, and decrypts the received target file according to the identification information of the target terminal itself, so that the transmission of the data file is completed safely and reliably, and the operation is simple.

In the file processing method described in the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, the source terminal obtains the identification information of the target terminal; and identifies whether the target terminal is legal according to the acquired identification information of the target terminal terminal; if yes, encrypt the target file to be transmitted according to the identification information; send the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

Please refer to FIG. 2 . FIG. 2 is another schematic flowchart of a file processing method provided by an embodiment of the present invention. In the embodiment of the present invention, taking a mobile phone as an example, the method may include the following steps.

S201: When the source terminal intends to transmit a target file to the target terminal, obtain the mobile phone number of the target terminal.

As an example, when the source terminal intends to transfer a target file to the target terminal, it sends a file transfer request to the target terminal, so that after receiving the request, the target terminal obtains the mobile phone number of the target terminal according to the request, that is, installs the file on the target terminal SIM card information. Considering that a small number of mobile phones support the dual-card dual-standby function, if at least two SIM cards are installed on the target terminal, the mobile phone number corresponding to each SIM card is obtained, and the obtained mobile phone number is sent to the source terminal, thereby, The source terminal obtains the mobile phone number of the target terminal.

As another example, considering that unimportant data files are transmitted without encryption, when the source terminal wants to transmit the target file to the target terminal, it sends a file transfer request to the target terminal. In specific implementation, the file transfer request can also be Carries a transport method. For example, the situation that does not require encrypted transmission of the target file is called "normal transmission", and the situation that requires encrypted transmission is called "secure transmission", and the specific transmission method is identified in the file transmission request. After receiving the file transfer request sent by the source terminal, the target terminal analyzes the relevant information carried in the request to determine the current transfer method; if it is the "safe transfer" method, obtains the mobile phone number and sends the obtained mobile phone number to to the source terminal. If it is the "common transmission" mode, it can automatically return a confirmation message to the source terminal, so that the source terminal can transmit the target file to the target terminal in a non-encrypted manner.

It is worth noting that, considering that the target terminal may not have a SIM card installed, at this time, the target terminal cannot obtain the information of the mobile phone number, so it can send a message similar to NULL to the source terminal, and the source terminal receives the information Finally, the target file can be encrypted with the preset password, and the target terminal can be decrypted with the preset password, so that the compatibility of the method can be improved by fully considering the abnormal usage situation in the actual process.

S202: The source terminal queries whether there is contact information corresponding to the mobile phone number in the local address book.

After receiving the mobile phone number returned by the target terminal, the source terminal inquires whether the contact information corresponding to the mobile phone number exists in the local address book. If it exists, it means that the target terminal is a legal terminal identified by the source terminal. If the terminal is a legitimate terminal, step S203 is executed to encrypt the target file according to the mobile phone number of the target terminal.

If there is no contact information corresponding to the mobile phone number in the local address book, it means that the target terminal is not a valid terminal identified by the source terminal, and thus the source terminal recognizes that the target terminal is not a valid terminal. As another implementation, when the target terminal is not the legal terminal identified by the source terminal, in order to improve the security of the data transmission process, step S205 may be executed, and the source terminal outputs a prompt message to prompt the user whether to confirm the transmission.

S203: The source terminal encrypts the target file to be transmitted according to the mobile phone number.

If the contact information corresponding to the mobile phone number exists in the local address book, it means that the target terminal is a legal terminal identified by the source terminal. Therefore, the target file to be transmitted is encrypted according to the mobile phone number. In specific implementation, the mobile phone number can be directly used as the encryption password of the target file; or the mobile phone number can be used as a key, and an encryption algorithm is used to set the encryption password according to the key. Specifically, this embodiment of the present invention does not limit it. If the former encryption is used, the target terminal can directly decrypt the target file according to the mobile phone number; The encrypted password decrypts the target file. Therefore, the latter is more secure, and users can use the latter for encryption when transferring very important data files.

S204: The source terminal sends the encrypted target file to the target terminal.

S205: Output prompt information to prompt the user whether to confirm the transmission.

If there is no contact information corresponding to the mobile phone number in the local address book, it means that the target terminal is not a legal terminal identified by the source terminal. Therefore, in order to ensure the security of the target file, a prompt message is output to prompt the user whether to confirm the transmission. Wherein, the manner of outputting the prompt information may be a manner of popping up a dialog box, or may be a manner of voice broadcast, which is not limited in this embodiment of the present invention. Therefore, after the user learns the prompt information output by the source terminal, he further confirms whether the target file really needs to be transmitted to the target terminal, and if so, initiates an instruction to confirm the transmission to the source terminal. Of course, after the source terminal outputs the prompt information, If the instruction for confirming the transmission input by the user is not received within the preset time period, an instruction for confirming the transmission or canceling the transmission is automatically initiated, instructing the source terminal to transmit or not transmit the target file to the target terminal. Specifically, the embodiments of the present invention are not limited.

S206: If the instruction to confirm the transmission is received, the source terminal encrypts the target file to be transmitted according to the preset key.

If the instruction for confirming the transmission is received, it means that the user expects to transmit the target file to the target terminal, therefore, the target file to be transmitted is encrypted with a preset key. As an implementation, the preset key can be an identifier of a pre-agreed encryption password, and the source terminal and the target terminal can determine the specific encryption password according to the identifier; it can also be a common contact between the source terminal and the target terminal Information, for example, assuming that the address books of the source terminal and the target terminal both store the mobile phone numbers of their common contacts, such as "boss", so "boss" can be used as a preset key, and the preset key corresponds to The encrypted password is the mobile phone number corresponding to "boss" in the address book, so that after receiving the target file, the target terminal uses the mobile phone number corresponding to "boss" in the address book to decrypt the target file.

As another example, if the instruction to confirm the transmission is received, the mobile phone number of the target terminal may also be automatically added to the local address book, and then the target file is encrypted according to the mobile phone number. Specifically, the embodiments of the present invention are not limited.

S207: The source terminal sends the encrypted target file and the preset key to the target terminal.

In specific implementation, if the source terminal encrypts the target file not according to the identification information of the target terminal, after encrypting the target file, it not only needs to send the encrypted target file to the target terminal, but also encrypts the target file The preset key of the target terminal is notified to the target terminal, so that after the target terminal receives the target file, it can determine the encryption password of the target file according to the preset key, so as to realize the decryption operation of the target file.

In the file processing method described in the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, the source terminal obtains the identification information of the target terminal; and identifies whether the target terminal is legal according to the acquired identification information of the target terminal terminal; if yes, encrypt the target file to be transmitted according to the identification information; send the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

Please refer to FIG. 3 . FIG. 3 is another schematic flowchart of a file processing method provided by an embodiment of the present invention. In an embodiment of the present invention, the method may include the following steps.

S301: When the source terminal intends to transmit a target file to the target terminal, obtain the instant messaging account of the target terminal.

Usually, when the instant messaging software is running on the terminal, the user uses his own account to log in on his own terminal, therefore, the terminal has an associated instant messaging account. Wherein, the instant messaging software may be QQ, WeChat, Weibo, Fetion, Yixin, etc. Specifically, this embodiment of the present invention makes no limitation. When the source terminal wants to transfer a target file to the target terminal, it can send a file transfer request to the target terminal, so that after receiving the request, the target terminal can obtain the instant messaging account frequently used on the target terminal according to the request, and transfer the acquired The instant messaging account is returned to the source terminal.

S302: The source terminal queries whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account.

In the specific implementation, query whether the instant messaging account of the target terminal exists in the friend relationship chain of the source terminal, and the friend relationship chain records the account information of all friends in the instant messaging account of the active terminal. If it exists, it means that the target terminal is The legitimate terminal, thus, the source terminal recognizes that the target terminal is a legitimate terminal, and executes step S303 to encrypt the target file according to the instant messaging account of the target terminal.

If there is no friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal, it means that the target terminal is not a legitimate terminal identified by the source terminal, and thus the source terminal recognizes that the target terminal is not a legitimate terminal. As another implementation manner, when the target terminal is not a legal terminal identified by the source terminal, in order to improve the security of the data transmission process, step S305 may be executed, and the source terminal outputs a prompt message to prompt the user whether to confirm the transmission.

S303: The source terminal encrypts the target file to be transmitted according to the instant messaging account.

If there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal, it means that the target terminal is a legal terminal identified by the source terminal. Therefore, the target file to be transmitted is encrypted according to the instant messaging account. In specific implementation, the instant messaging account may be directly used as the encryption password of the target file; or the instant messaging account may be used as a key, and an encryption algorithm is used to set the encryption password according to the key. Specifically, this embodiment of the present invention does not limit it. If the former encryption is used, the target terminal can directly decrypt the target file according to the instant messaging account; if the latter is used, the target terminal can use the encryption algorithm corresponding to the source terminal to obtain the original encrypted password according to its own instant messaging account. Then use the encrypted password to decrypt the target file. Therefore, the latter is more secure, and users can use the latter for encryption when transferring very important data files.

S304: The source terminal sends the encrypted target file to the target terminal.

S305: Output prompt information to prompt the user whether to confirm the transmission.

If there is no friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal, it means that the target terminal is not a legal terminal identified by the source terminal. Therefore, the source terminal recognizes that the target terminal is not a legal terminal. For security, output a prompt message to prompt the user whether to confirm the transmission. Wherein, the manner of outputting the prompt information may be a manner of popping up a dialog box, or may be a manner of voice broadcast, which is not limited in this embodiment of the present invention. Therefore, after the user learns the prompt information output by the source terminal, he further confirms whether the target file really needs to be transmitted to the target terminal, and if so, initiates an instruction to confirm the transmission to the source terminal. Of course, after the source terminal outputs the prompt information, If the instruction for confirming the transmission input by the user is not received within the preset time period, an instruction for confirming the transmission or canceling the transmission is automatically initiated, instructing the source terminal to transmit or not transmit the target file to the target terminal. Specifically, the embodiments of the present invention are not limited.

S306: If the instruction to confirm the transmission is received, the source terminal encrypts the target file to be transmitted according to the preset key.

If the instruction for confirming the transmission is received, it means that the user expects to transmit the target file to the target terminal, therefore, the target file to be transmitted is encrypted with a preset key. As an implementation, the preset key can be an identifier of a pre-agreed encryption password, and the source terminal and the target terminal can determine the specific encryption password according to the identifier; it can also be a common friend of the source terminal and the target terminal Information, for example, assuming that the friend information corresponding to the instant messaging accounts of the source terminal and the target terminal all store their common friend information, such as "Zhang San", so "Zhang San" can be used as a preset key, and the preset Let the encryption password corresponding to the key be the instant messaging account corresponding to "Zhang San", so that after receiving the target file, the target terminal uses the instant messaging account corresponding to the friend "Zhang San" to decrypt the target file.

As another example, if the instruction for confirming the transmission is received, the instant messaging account of the target terminal may also be automatically added as a friend, and then the target file may be encrypted according to the instant messaging account. Specifically, the embodiments of the present invention are not limited.

S307: The source terminal sends the encrypted target file and the preset key to the target terminal.

For details, please refer to step S307, which will not be repeated here.

In the file processing method described in the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, the source terminal obtains the identification information of the target terminal; and identifies whether the target terminal is legal according to the acquired identification information of the target terminal terminal; if yes, encrypt the target file to be transmitted according to the identification information; send the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

The above is the file processing method introduced by the "source terminal" side. The following describes the processing flow of a file processing method from the "target terminal" side. It is worth noting that the "target terminal" side is the same as or corresponds to the "source terminal" side. Parts will not be described in detail here, and specific descriptions of the foregoing embodiments may be referred to.

Please refer to FIG. 4 . FIG. 4 is another schematic flowchart of a file processing method provided by an embodiment of the present invention. In an embodiment of the present invention, the method may include the following steps.

S401: When the target terminal needs to receive the target file to be transmitted by the source terminal, acquire the identification information of the target terminal.

For example, when the target terminal receives the file transfer request from the source terminal, if the target terminal needs to receive the target file to be transmitted by the source terminal, it acquires the identification information of the target terminal. Of course, the current transmission mode may also be identified according to the request, and if it is a "secure transmission" mode, the identification information of the target terminal is acquired.

S402: Send the identification information to the source terminal, so that the source terminal encrypts the target file to be transmitted according to the identification information.

Send the obtained identification information to the source terminal, so that the source terminal encrypts the target file to be transmitted according to the identification information. Wherein, the identification information may be the mobile phone number or instant messaging account of the target terminal, of course, it may also be other information such as an identifier, as long as the source terminal and the target terminal can establish a certain relationship through the identifier, it can be used as The identifying information. Specifically, the embodiments of the present invention are not limited.

S403: The target terminal receives the target file sent by the source terminal.

S404: If the target terminal is a legitimate terminal identified by the source terminal, the target terminal decrypts the target file according to the identification information.

In specific implementation, the source terminal will identify whether the target terminal is a legal terminal of the source terminal according to the identification information of the target terminal. If the target terminal is a legal terminal identified by the source terminal, the source terminal will encrypt the target file according to the identification information of the target terminal ; After receiving the target file sent by the source terminal, the target terminal decrypts the target file according to the identification information. Specifically, reference may be made to the above steps S103, S203 or S303. Certainly, the target terminal may also decrypt the target file according to the identification information when receiving an access request to the target file.

In the file processing method described in the embodiment of the present invention, when the target terminal needs to receive the target file to be transmitted by the source terminal, it obtains the identification information of the target terminal; and sends the identification information to the source terminal, so that the source terminal Encrypt the target file to be transmitted according to the identification information; receive the target file sent by the source terminal; if the target terminal is a legal terminal identified by the source terminal, decrypt the target file according to the identification information. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

It is worth noting that, in the above embodiment, if the target terminal is not a legal terminal identified by the source terminal, the source terminal will also transmit the preset key when transmitting the target file to the target terminal; the target terminal receives the target file sent by the source terminal and a preset key; decrypting the target file according to the preset key. Specifically, reference may be made to the above step S206 or S306, which will not be repeated here.

The following are device embodiments of the present invention. The device embodiments of the present invention and the method embodiments of the present invention belong to the same concept, and are used to execute the method described in the method embodiments of the present invention. For ease of description, the device embodiment of the present invention only shows the parts related to the device embodiment of the present invention. For specific technical details not disclosed, please refer to the description of the method embodiment of the present invention, and details will not be repeated here. In the following embodiments, the terminal may include: a smart phone, a computer, a tablet computer, a notebook computer, a palmtop computer, and terminal equipment such as a mobile internet device (MID), and a PAD. Specifically, the embodiments of the present invention are not limited.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention. In an embodiment of the present invention, the terminal may include: a first acquisition module 101, an identification module 102, an encryption module 103 and a first sending Module 104.

The first obtaining module 101 is configured to obtain the identification information of the target terminal when the source terminal intends to transmit the target file to the target terminal.

The identification module 102 is configured to identify whether the target terminal is a legal terminal according to the identification information.

The encryption module 103 is configured to encrypt the target file to be transmitted according to the identification information if the target terminal is a legitimate terminal.

The first sending module 104 is configured to send the encrypted target file to the target terminal.

In the terminal described in the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, obtain the identification information of the target terminal; and identify whether the target terminal is a legal terminal according to the obtained identification information of the target terminal; if so, Then encrypt the target file to be transmitted according to the identification information; and send the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

Please refer to FIG. 6. FIG. 6 is another structural diagram of a terminal provided by an embodiment of the present invention. In an embodiment of the present invention, the terminal may include: a first acquisition module 201, an identification module 202, an encryption module 203, A sending module 204 and an output module 205 .

The first obtaining module 201 is configured to obtain the identification information of the target terminal when the source terminal intends to transmit the target file to the target terminal.

The identification module 202 is configured to identify whether the target terminal is a legal terminal according to the identification information.

The encryption module 203 is configured to encrypt the target file to be transmitted according to the identification information if the target terminal is a legal terminal.

The first sending module 204 is configured to send the encrypted target file to the target terminal.

The output module 205 is configured to output prompt information to prompt the user whether to confirm the transmission if the target terminal is not a legitimate terminal.

In an implementation manner, the identification information includes a mobile phone number or an instant messaging account.

In an implementation manner, if the identification information is a mobile phone number, the identification module 202 is specifically configured to:

Query whether there is contact information corresponding to the mobile phone number in the local address book;

If it exists, identifying that the target terminal is a legitimate terminal;

If not, it is identified that the target terminal is not a legitimate terminal.

In an implementation manner, if the identification information is an instant messaging account, the identification module 202 is specifically configured to:

Querying whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account;

If it exists, identifying that the target terminal is a legitimate terminal;

If not, it is identified that the target terminal is not a legitimate terminal.

In one implementation, the encryption module 203 is also used to: if an instruction confirming the transmission is received, encrypt the target file to be transmitted according to the preset key;

The first sending module 204 is further configured to: send the encrypted target file and the preset key to the target terminal.

In the terminal described in the embodiment of the present invention, when the source terminal needs to transmit the target file to the target terminal, obtain the identification information of the target terminal; and identify whether the target terminal is a legal terminal according to the obtained identification information of the target terminal; if so, Then encrypt the target file to be transmitted according to the identification information; and send the encrypted target file to the target terminal. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

Please refer to FIG. 7. FIG. 7 is another schematic structural diagram of a terminal provided by an embodiment of the present invention. In an embodiment of the present invention, the terminal may include: a second acquiring module 301, a second sending module 302, and a receiving module 303 and decryption module 304.

The second acquiring module 301 is configured to acquire the identification information of the target terminal when the target terminal needs to receive the target file to be transmitted by the source terminal.

The second sending module 302 is configured to send the identification information to the source terminal, so that the source terminal encrypts the target file according to the identification information.

The receiving module 303 is configured to receive the target file sent by the source terminal.

The decryption module 304 is configured to, if the target terminal is a legitimate terminal identified by the source terminal, the target terminal decrypts the target file according to the identification information.

In an implementation manner, the receiving module 303 is also used to:

If the target terminal is not a legal terminal identified by the source terminal, receiving the target file and the preset key sent by the source terminal;

The decryption module 304 is further configured to: decrypt the target file according to the preset key.

In an implementation manner, the identification information includes a mobile phone number or an instant messaging account.

In the terminal described in the embodiment of the present invention, when the target terminal needs to receive the target file to be transmitted by the source terminal, it obtains the identification information of the target terminal; and sends the identification information to the source terminal, so that the source terminal according to the The identification information encrypts the target file to be transmitted; receives the target file sent by the source terminal; if the target terminal is a legal terminal identified by the source terminal, decrypts the target file according to the identification information. According to the embodiment of the present invention, if the target terminal is a legal terminal identified by the source terminal, when the source terminal transmits the target file to the target terminal, the key is automatically set for the target file according to the identification information of the target terminal, and the target terminal automatically encrypts the target file according to its own identification information. Decrypting the target file not only ensures the security of the file transfer process, but also makes the operation simple.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Those skilled in the art can combine and combine different embodiments and features of different embodiments described in this specification. The modules or units in all embodiments of the present invention can be realized by a general-purpose integrated circuit, such as a CPU (Central Processing Unit, central processing unit), or by an ASIC (Application Specific Integrated Circuit, application-specific integrated circuit).

The steps in the methods of all embodiments of the present invention can be adjusted, combined and deleted according to actual needs; the modules or units in the devices of all embodiments of the present invention can be combined, divided and deleted according to actual needs.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, which can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment for use. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

What is disclosed above is only a preferred embodiment of the present invention, and certainly cannot limit the scope of rights of the present invention with this. Those of ordinary skill in the art can understand all or part of the process for realizing the above embodiments, and according to the claims of the present invention The equivalent changes made still belong to the scope covered by the invention.

Claims (18)

1. A file processing method, characterized in that, comprising: When the source terminal intends to transmit the target file to the target terminal, obtain the identification information of the target terminal; identifying, by the source terminal, whether the target terminal is a legitimate terminal according to the identification information; If yes, the source terminal encrypts the target file to be transmitted according to the identification information; The source terminal sends the encrypted target file to the target terminal. 2. The method according to claim 1, wherein the identification information includes a mobile phone number or an instant messaging account. 3. The method according to claim 2, wherein if the identification information is a mobile phone number, the source terminal identifies whether the target terminal is a legitimate terminal according to the identification information, comprising: The source terminal queries whether there is contact information corresponding to the mobile phone number in the local address book; If it exists, the source terminal identifies that the target terminal is a legal terminal; If not, the source terminal recognizes that the target terminal is not a legitimate terminal. 4. The method according to claim 2, wherein if the identification information is an instant messaging account, the source terminal identifies whether the target terminal is a legitimate terminal according to the identification information, comprising: The source terminal queries whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account; If it exists, the source terminal identifies that the target terminal is a legitimate terminal; If not, the source terminal recognizes that the target terminal is not a legitimate terminal. 5. The method according to any one of claims 1, 3, and 4, wherein after the source terminal identifies whether the target terminal is a legal terminal according to the identification information, the method further comprises: If the source terminal recognizes that the target terminal is not a legitimate terminal, it outputs prompt information to prompt the user whether to confirm the transmission. 6. The method according to claim 5, wherein after the prompt information is output, the method further comprises: If the instruction for confirming the transmission is received, the source terminal encrypts the target file to be transmitted according to the preset key; The source terminal sends the encrypted target file and the preset key to the target terminal. 7. A file processing method, characterized in that, comprising: When the target terminal needs to receive the target file to be transmitted by the source terminal, obtain the identification information of the target terminal; The target terminal sends the identification information to the source terminal, so that the source terminal encrypts the target file according to the identification information; The target terminal receives the target file sent by the source terminal; If the target terminal is a legitimate terminal identified by the source terminal, the target terminal decrypts the target file according to the identification information. 8. The method of claim 7, further comprising: If the target terminal is not a legal terminal identified by the source terminal, receiving the target file and the preset key sent by the source terminal; The target file is decrypted according to the preset key. 9. The method according to claim 7 or 8, wherein the identification information includes a mobile phone number or an instant messaging account. 10. A terminal, characterized in that, comprising: The first obtaining module is used for obtaining the identification information of the target terminal when the source terminal intends to transmit the target file to the target terminal; An identification module, configured to identify whether the target terminal is a legal terminal according to the identification information; An encryption module, configured to encrypt the target file to be transmitted according to the identification information if the target terminal is a legitimate terminal; The first sending module is configured to send the encrypted target file to the target terminal. 11. The terminal according to claim 10, wherein the identification information includes a mobile phone number or an instant messaging account. 12. The terminal according to claim 11, wherein if the identification information is a mobile phone number, the identification module is specifically used for: Query whether there is contact information corresponding to the mobile phone number in the local address book; If it exists, identifying that the target terminal is a legitimate terminal; If not, it is identified that the target terminal is not a legitimate terminal. 13. The terminal according to claim 11, wherein if the identification information is an instant messaging account, the identification module is specifically used for: Querying whether there is friend information corresponding to the instant messaging account in the friend relationship chain of the source terminal according to the instant messaging account; If it exists, identifying that the target terminal is a legitimate terminal; If not, it is identified that the target terminal is not a legitimate terminal. 14. The terminal according to any one of claims 10, 12, and 13, wherein the terminal further comprises: An output module, configured to output prompt information to prompt the user whether to confirm the transmission if the target terminal is not a legal terminal. 15. The terminal according to claim 14, wherein the encryption module is further configured to encrypt the target file to be transmitted according to a preset key if an instruction confirming transmission is received; The first sending module is further configured to send the encrypted target file and the preset key to the target terminal. 16. A terminal, characterized in that, comprising: The second obtaining module is used for obtaining the identification information of the target terminal when the target terminal needs to receive the target file to be transmitted by the source terminal; A second sending module, configured to send the identification information to the source terminal, so that the source terminal encrypts the target file according to the identification information; a receiving module, configured to receive the target file sent by the source terminal; A decryption module, configured to decrypt the target file according to the identification information if the target terminal is a legitimate terminal identified by the source terminal. 17. The terminal according to claim 16, wherein the receiving module is further configured to, if the target terminal is not a legal terminal identified by the source terminal, receive the target file and preset information sent by the source terminal key; The decryption module is further configured to decrypt the target file according to the preset key. 18. The terminal according to claim 16 or 17, wherein the identification information includes a mobile phone number or an instant messaging account.