CN111639313B - File transfer method, device, terminal and computer-readable storage medium - Google Patents

Abstract

The present invention discloses a file transmission method, comprising: if a target terminal is detected based on a target file-triggered transmission instruction, acquiring target terminal information of the target terminal, and generating the first target file of the target terminal based on the target terminal information Watermark information; sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction. The invention also discloses a file transmission device, equipment and computer-readable storage medium. When transmitting the target file, the present invention generates watermark information corresponding to the target terminal, and then sends out the target file carrying the watermark information. If the target file is leaked, it can be known from where the leak is based on the watermark information, and the target file is realized. traceable.

Description

File transfer method, device, terminal and computer-readable storage medium

technical field

The present invention relates to the technical field of data transmission, in particular to a file transmission method, device, terminal and computer-readable storage medium.

Background technique

With the rapid development of information digitization, the digitization of information media provides great convenience for information access, and also significantly improves the efficiency and accuracy of information expression. More and more enterprises use electronic documents instead of paper documents, but the side effect is that the security of these electronic documents in digital form cannot be guaranteed in the process of circulation, and it is easy to be leaked by internal employees Get out, and it's hard to trace who leaked it after it's leaked.

Contents of the invention

The main purpose of the present invention is to provide a file transmission method, device, terminal and computer-readable storage medium, aiming at realizing the traceability of target files.

To achieve the above object, the present invention provides a file transfer method, the file transfer method includes the following steps:

If a transmission instruction triggered by the target terminal based on the target file is detected, acquiring target terminal information of the target terminal, and generating first watermark information of the target file based on the target terminal information;

Sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction.

Preferably, the first watermark information includes an implicit watermark, and if the transmission instruction triggered by the target terminal based on the target file is detected, the target terminal information of the target terminal is obtained, and the target terminal information is generated based on the target terminal information. The steps of the first watermark information of the target file include:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine the page type of the target file;

If the page type is content, acquiring target terminal information of the target terminal, and generating a hidden watermark corresponding to the target terminal information;

Add the implicit watermark to the content area corresponding to the content.

Preferably, the first watermark information includes an explicit watermark, and after the step of determining the page type of the target file if a transfer instruction triggered by the target terminal based on the target file is detected, the file transfer method further includes:

If the page type is blank, acquiring target terminal information of the target terminal, and generating an explicit watermark corresponding to the target terminal information;

Add the explicit watermark to the blank area corresponding to the blank.

Preferably, the step of obtaining target terminal information of the target terminal and generating the first watermark information of the target file based on the target terminal information if the transmission instruction triggered by the target terminal based on the target file is detected includes:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine whether the target file is an original created file;

If yes, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

Preferably, if it is the case, the step of acquiring target terminal information of the target terminal, and generating the first watermark information of the target file based on the target terminal information includes:

If yes, acquiring target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction;

Based on the target terminal information and the receiving terminal information, generate first watermark information of the target file.

Preferably, after the step of determining whether the target file is an originally created file if a transfer instruction triggered by the target terminal based on the target file is detected, the file transfer method further includes:

If not, acquire the target terminal information of the target terminal and the second watermark information carried by the target file, and generate the target terminal information, the receiving terminal information, and the second watermark information based on the target terminal information The third watermark information of the target file;

Sending the target file carrying the third watermark information to a receiving terminal corresponding to the transmission instruction.

Preferably, if no, then acquire target terminal information of the target terminal and second watermark information carried by the target file, and based on the target terminal information, the receiving terminal information and the second watermark information, the step of generating the third watermark information of the target file includes:

If not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and determining whether the target terminal information satisfies the second watermark information;

If so, generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information.

In addition, in order to achieve the above object, the present invention also provides a file transmission device, the file transmission device includes:

A generating module, configured to acquire target terminal information of the target terminal if it is detected that the target terminal triggers a transmission instruction based on the target file, and generate first watermark information of the target file based on the target terminal information;

A sending module, configured to send the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction.

Preferably, the first watermark information includes an implicit watermark, and the generating module is further configured to:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine the page type of the target file;

If the page type is content, acquiring target terminal information of the target terminal, and generating a hidden watermark corresponding to the target terminal information;

Add the implicit watermark to the content area corresponding to the content.

Preferably, the first watermark information includes an explicit watermark, and the generating module is further configured to:

If the page type is blank, acquiring target terminal information of the target terminal, and generating an explicit watermark corresponding to the target terminal information;

Add the explicit watermark to the blank area corresponding to the blank.

Preferably, the generating module is also used for:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine whether the target file is an original created file;

If yes, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

Preferably, the generating module is also used for:

If yes, acquiring target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction;

Based on the target terminal information and the receiving terminal information, generate first watermark information of the target file.

Preferably, the generating module is also used for:

If not, acquire the target terminal information of the target terminal and the second watermark information carried by the target file, and generate the target terminal information, the receiving terminal information, and the second watermark information based on the target terminal information The third watermark information of the target file;

The sending module is also used for:

Sending the target file carrying the third watermark information to a receiving terminal corresponding to the transmission instruction.

Preferably, the generating module is also used for:

If not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and determining whether the target terminal information satisfies the second watermark information;

If so, generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information.

In addition, in order to achieve the above object, the present invention also provides a terminal, the terminal includes: a memory, a processor, and a file transfer program stored in the memory and operable on the processor, the file transfer program When executed by the processor, the steps of the above-mentioned file transmission method are realized.

In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium, on which a file transfer program is stored, and when the file transfer program is executed by a processor, the above-mentioned file transfer is realized. method steps.

In the file transfer method proposed by the present invention, if a transfer instruction triggered by the target terminal based on the target file is detected, target terminal information of the target terminal is obtained, and first watermark information of the target file is generated based on the target terminal information; Sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction. When transmitting the target file, the present invention generates watermark information corresponding to the target terminal, and then sends the target file carrying the watermark information. If the target file is leaked, it can be known from where the leak is based on the watermark information, and the target file can be realized. traceable.

Description of drawings

Fig. 1 is a schematic diagram of the terminal structure of the hardware operating environment involved in the solution of the embodiment of the present invention;

FIG. 2 is a schematic flowchart of the first embodiment of the file transmission method of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1 , FIG. 1 is a schematic diagram of a terminal structure of a hardware operating environment involved in the solution of the embodiment of the present invention.

The terminal in this embodiment of the present invention may be a mobile terminal or a fixed terminal.

As shown in FIG. 1 , the terminal may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1005 as a computer storage medium may include an operating device, a network communication module, a user interface module, and a file transfer program.

Among them, the operating device is a program for managing and controlling terminals and software resources, and supports the operation of network communication modules, user interface modules, file transfer programs, and other programs or software; the network communication module is used to manage and control the network interface 1002; the user interface module Used to manage and control the user interface 1003 .

In the terminal shown in FIG. 1, the terminal invokes the file transfer program stored in the memory 1005 through the processor 1001, and executes operations in various embodiments of the file transfer method described below.

Based on the above hardware structure, an embodiment of the file transmission method of the present invention is proposed.

Referring to FIG. 2, FIG. 2 is a schematic flowchart of the first embodiment of the file transmission method of the present invention, the method includes:

Step S10, if a transmission instruction triggered by the target terminal based on the target file is detected, then acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information;

Step S20, sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction.

The file transfer method of this embodiment is applied to a file transfer device. The file transfer device may be a mobile terminal such as a mobile phone or a tablet computer, or may be a fixed terminal such as a computer. For convenience of description, the file transfer device is briefly described as a terminal. In the specific implementation, the enterprise only needs to install the program including the file transfer method on the internal terminal, such as a computer, so that the internal terminal of the enterprise can realize the file transfer method. If the employee sends the target file of the enterprise through the terminal, the terminal will Obtain terminal information, generate watermark information indicating that the target file is sent from the current terminal, and then send the target file with watermark information, so that the target file received by the receiving terminal also contains watermark information. If the target file is leaked, Then the leaker can be found based on the watermark information.

Each step will be described in detail below:

Step S10, if it is detected that the target terminal triggers a transmission instruction based on the target file, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

In this embodiment, if the target terminal is detected based on the transfer command triggered by the target file, that is, there is currently an employee on the target terminal who wants to transfer the target file, then the target terminal information of the target terminal is obtained, wherein the target terminal information includes the target The terminal corresponds to the employee's job number information and the id information of the target terminal. Then, based on the target terminal information, the first watermark information of the target file is generated. Since the watermark generation method is relatively mature, it will not be described in detail here. What needs to be explained is , the finally generated first watermark information includes job number information and id information, so that leaking can be traced later according to the job number information and id information.

Further, in another embodiment, the first watermark information includes an implicit watermark, therefore, in another embodiment, step S10 includes:

Step a1, if a transmission instruction triggered by the target terminal based on the target file is detected, then determine the page type of the target file;

In another embodiment, if the transmission instruction triggered by the target terminal based on the target file is detected, the page type of the target file is first determined. It should be noted that, in another embodiment, the pages of the target file are divided into content areas and blank area, the content area can be text or pictures, etc. Therefore, the page type includes content and blank area.

Step a2, if the page type is content, obtaining target terminal information of the target terminal, and generating a hidden watermark corresponding to the target terminal information;

In another embodiment, if it is determined that the page type of the target file is content, the target terminal information of the target terminal is acquired, and a hidden watermark corresponding to the target terminal information is generated. It can be understood that since content is displayed on the content area, such as text or pictures, if an explicit watermark is generated, it will inevitably affect the reading effect of the target file. Therefore, in another embodiment, for the content area, the generated is an implicit watermark.

It should be noted that the hidden watermark refers to the watermark that cannot be observed by the normal naked eye or from a normal angle. It needs special observation tools or a watermark that can be seen from a special angle. The principle is visual deception. side, the watermark that can only be seen close to the screen, etc. In another embodiment, the hidden watermark may also be a piece of hidden code, which requires a corresponding decoding program to display it, which is not specifically limited here.

Step a3, adding the hidden watermark in the content area corresponding to the content.

Finally, a hidden watermark is added to the content area corresponding to the content. Since it is a hidden watermark, the specific adding method is not limited here.

It should be noted that when adding a hidden watermark, the hidden watermark and the content of the target file, such as text, pictures, etc., are located in the same display layer, so as to prevent leakers from removing the hidden watermark by removing the display layer.

Further, in another embodiment, the first watermark information includes an explicit watermark, and after step a1, the file transfer method further includes:

Step a4, if the page type is blank, acquiring target terminal information of the target terminal, and generating an explicit watermark corresponding to the target terminal information;

In another embodiment, if it is determined that the page type of the target file is blank, that is, the blank area of the page in the target file, the target terminal information of the target terminal is obtained, and an explicit watermark corresponding to the target terminal information is generated. The explicit watermark The difference from the hidden watermark is that one is normally visible and the other is normally invisible.

Step a5, adding the explicit watermark in the blank area corresponding to the blank.

Finally, add an explicit watermark to the blank area corresponding to the blank. The specific adding method can be embedded. Embed the explicit watermark into the blank area of the target file, and the explicit watermark and the content of the target file, such as text, pictures, etc., They can be located on the same display layer or on different display layers. In this embodiment, they are preferably located on the same display layer.

In another embodiment, the implicit watermark and the explicit watermark can be added at the same time, that is, in the page of the target file, the implicit watermark is added to the content area with content, and the explicit watermark is added to the blank blank area. At this time The explicit watermark mainly plays a confusing role, making leakers focus on the removal of the explicit watermark, while ignoring the hidden implicit watermark.

Step S20, sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction.

In this embodiment, finally, the target file carrying the first watermark information is sent to the receiving terminal corresponding to the transmission instruction, wherein the receiving terminal may be a terminal belonging to the same enterprise as the target terminal, or may be a terminal belonging to a different company from the target terminal. Enterprise terminal. If the receiving terminal is a terminal belonging to the same company as the target terminal, it means that this transmission is an internal transmission; if the receiving terminal is a terminal belonging to a different company from the target terminal, it means that there is a leak in this transmission that the current employee sent the target file of the company Risk, if there is a leakage of the target file, you can obtain the target file and look at its watermark information to know who leaked the secret.

If there is currently a leaked file, you can check its watermark information to determine who leaked it. For example, A sent the target file to B, B sent it to C, and C may send it to other people, and the watermark of the leaked file If the information indicates that it is B, it is determined that the document was originally leaked by B, and C and B may belong to different companies.

In this embodiment, if a transmission instruction triggered by the target terminal based on the target file is detected, the target terminal information of the target terminal is obtained, and the first watermark information of the target file is generated based on the target terminal information; The target file of a watermark information is sent to the receiving terminal corresponding to the transmission instruction. When transmitting the target file, the present invention generates watermark information corresponding to the target terminal, and then sends the target file carrying the watermark information. If the target file is leaked, it can be known from where the leak is based on the watermark information, and the target file can be realized. traceable.

Further, based on the first embodiment of the file transmission method of the present invention, a second embodiment of the file transmission method of the present invention is proposed.

The difference between the second embodiment of the file transfer method and the first embodiment of the file transfer method is that step S10 includes:

Step b1, if it is detected that the target terminal triggers a transfer instruction based on the target file, then determine whether the target file is an original created file;

Step b2, if yes, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

In the process of generating the watermark in this embodiment, it is first necessary to determine whether the target file is an original created file, so as to select different parameters to generate the watermark information, so that the generated watermark information is reliable and traceable.

Each step will be described in detail below:

Step b1, if it is detected that the target terminal triggers a transfer instruction based on the target file, then determine whether the target file is an original created file.

In this embodiment, if the transmission instruction triggered by the target terminal based on the target file is detected, first determine whether the target file is an original created file, wherein the original created file refers to a file edited and created by the current employee himself on the target terminal, or That is, the target terminal is the creator of the target file. Therefore, by determining the creator of the current target file, it can be determined whether the target file is an originally created file. Specifically, if the creator of the target file is the target terminal, that is, the target file is created by an employee on the target terminal, then determine that the target file is the original created file; if the creator of the target file is not the target terminal, that is, the target file is If the target terminal receives files sent or transferred from other terminals, it is determined that the target file is not the original created file.

Step b2, if yes, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

In this embodiment, if it is determined that the target file is an originally created file, the target terminal information of the target terminal is obtained, and the first watermark information of the target file is generated according to the target terminal information, that is, after it is determined that the target file is an originally created file, The target terminal information of the target terminal is selected as the generation parameter of the watermark information; if the target file is not the original created file, other information is selected as the generation parameter of the watermark information.

Further, in another embodiment, step b2 includes:

If yes, acquiring target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction;

In this step, if it is determined that the target file is an originally created file, the target terminal information of the target terminal and the receiving terminal information corresponding to the transmission instruction are obtained, wherein, in this embodiment, the receiving terminal includes the id information of the receiving terminal.

Based on the target terminal information and the receiving terminal information, generate first watermark information of the target file.

In this step, the first watermark information of the target file is generated according to the target terminal information and the receiving terminal information, that is, the generation parameters of the first watermark information include the target terminal information and the receiving terminal information, so that who In addition to leaking secrets, you can also know who the first leaking object is, that is, to whom the secrets are leaked.

Further, in another embodiment, after step b1, the file transfer method further includes:

Step b3, if not, acquiring the target terminal information of the target terminal and the second watermark information carried by the target file, and based on the target terminal information, the receiving terminal information and the second watermark information, generating third watermark information of the target file;

In another embodiment, if it is determined that the target file is not an original created file, it means that the target file was sent or transferred by other terminals. terminal, the second watermark information is generated, therefore, it is necessary to obtain the target terminal information of the target terminal and the second watermark information carried by it, so as to generate a new watermark according to the target terminal information, the receiving terminal information and the second watermark information Indicates the third watermark information sent by the target terminal.

It should be noted that if the target file does not carry the second watermark information, there is no need to generate the third watermark information, that is, as long as the file is created on the terminal of the enterprise, in principle, the watermark information will be generated during the transmission process. If the enterprise In principle, the files copied from the outside world are not corporate confidential files, so they will not have watermark information themselves, and there is no need to generate watermarks during the transmission process.

Step b4, sending the target file carrying the third watermark information to a receiving terminal corresponding to the transmission instruction.

In another embodiment, finally, the target file carrying the third watermark information is sent to the receiving terminal corresponding to the transmission instruction, indicating that the target file is generated by the target terminal, and since the generation parameters of the third watermark information include the second watermark information , so it can be traced upwards from where the target terminal received it.

Further, in another embodiment, step b3 includes:

If not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and determining whether the target terminal information satisfies the second watermark information;

In another embodiment, if it is determined that the target file is not an original created file, it means that the target file was sent or transferred by other terminals. At this time, the target file contains watermark information generated by other terminals in principle. Therefore, to obtain the target terminal's target terminal information, and the second watermark information carried by the target file, and determine whether the target terminal information satisfies the second watermark information.

It should be noted that the second watermark information in this embodiment is generated by the previous terminal based on the terminal information of the previous terminal and the target terminal information of the target terminal (the previous terminal is the creator of the target file), that is, in At the time of the last transmission, the target terminal was the receiving terminal.

Therefore, it can be determined whether the target terminal information satisfies the second watermark information, that is, when terminal A sends the target file to terminal B, the second watermark information is generated according to the terminal information of terminal A and terminal B, and terminal B then sends the target file to In the case of terminal C, it is necessary to determine whether the terminal information of terminal B satisfies the second watermark information, wherein, if the second watermark information includes target terminal information, it is determined that the target terminal information satisfies the second watermark information. This is to avoid the illusion that when terminal A sends the target file to terminal B, the corresponding employee of terminal B copies the target file on terminal B, sends the target file to terminal C on terminal D, and assigns the blame to terminal D for sending.

If so, generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information.

If it is satisfied, it means that the last terminal sent it to the target terminal, and the target terminal has the right to send it to other receiving terminals. Therefore, during transmission, based on the target terminal information, receiving terminal information and the second watermark information, the target file is generated. The third watermark information.

Further, if it is not satisfied, it means that the target file may be copied from other terminals, and the sending of the target file is prohibited.

Further, if it is not satisfied, it means that the file may be copied from other terminals, then turn on the camera of the target terminal, obtain the face information of the current operator, and determine the job number information of the current operator based on the face information, The third watermark information is generated based on the employee number information, the target terminal information and the receiving terminal information.

It is understandable that terminal A sends the target file to terminal B, but terminal B fails to send it to terminal C. At this time, the employees of terminal B may use other devices to send it, but it is necessary to avoid other terminals from being blamed. Therefore, at this time, the employee's face information can be obtained, so as to determine the employee's job number information in the enterprise information database, thereby successfully generating the third watermark information.

In the process of generating the watermark in this embodiment, it is first necessary to determine whether the target file is an original created file, so as to select different parameters to generate the watermark information, so that the generated watermark information is reliable and traceable.

The invention also provides a file transmission device. The file transmission device of the present invention includes:

A generating module, configured to acquire target terminal information of the target terminal if it is detected that the target terminal triggers a transmission instruction based on the target file, and generate first watermark information of the target file based on the target terminal information;

A sending module, configured to send the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction.

Further, the first watermark information includes an implicit watermark, and the generating module is also used for:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine the page type of the target file;

If the page type is content, acquiring target terminal information of the target terminal, and generating a hidden watermark corresponding to the target terminal information;

Add the implicit watermark to the content area corresponding to the content.

Further, the first watermark information includes an explicit watermark, and the generating module is also used for:

If the page type is blank, acquiring target terminal information of the target terminal, and generating an explicit watermark corresponding to the target terminal information;

Add the explicit watermark to the blank area corresponding to the blank.

Further, the generating module is also used for:

If the transmission instruction triggered by the target terminal based on the target file is detected, then determine whether the target file is an original created file;

If yes, acquire target terminal information of the target terminal, and generate first watermark information of the target file based on the target terminal information.

Further, the generating module is also used for:

If yes, acquiring target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction;

Based on the target terminal information and the receiving terminal information, generate first watermark information of the target file.

Further, the generating module is also used for:

If not, acquire the target terminal information of the target terminal and the second watermark information carried by the target file, and generate the target terminal information, the receiving terminal information, and the second watermark information based on the target terminal information The third watermark information of the target file;

The sending module is also used for:

Sending the target file carrying the third watermark information to a receiving terminal corresponding to the transmission instruction.

Further, the generating module is also used for:

If not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and determining whether the target terminal information satisfies the second watermark information;

If so, generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information.

The present invention also provides a computer-readable storage medium.

A file transfer program is stored on the computer-readable storage medium of the present invention, and when the file transfer program is executed by a processor, the steps of the above-mentioned file transfer method are realized.

Wherein, for the method implemented when the file transfer program running on the processor is executed, reference may be made to various embodiments of the file transfer method of the present invention, which will not be repeated here.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article or apparatus comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to enable a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (6)

1. A file transfer method, characterized in that the file transfer method comprises the steps of:

if a transmission instruction triggered by a target terminal based on a target file is detected, acquiring target terminal information of the target terminal, and generating first watermark information of the target file based on the target terminal information;

the target file carrying the first watermark information is sent to a receiving terminal corresponding to the transmission instruction;

the step of acquiring the target terminal information of the target terminal and generating the first watermark information of the target file based on the target terminal information if the target terminal is detected to be triggered based on the target file comprises the following steps:

if a transmission instruction triggered by the target terminal based on the target file is detected, determining whether the target file is an original created file or not;

if yes, acquiring target terminal information of the target terminal, and generating first watermark information of the target file based on the target terminal information;

if yes, the step of obtaining the target terminal information of the target terminal and generating the first watermark information of the target file based on the target terminal information comprises the following steps:

if yes, acquiring target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction;

generating first watermark information of the target file based on the target terminal information and the receiving terminal information;

if the transmission instruction triggered by the target terminal based on the target file is detected, determining whether the target file is the original created file, and after the step of determining whether the target file is the original created file, the file transmission method further comprises the following steps:

if not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information;

the target file carrying the third watermark information is sent to a receiving terminal corresponding to the transmission instruction;

if not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and generating third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information, wherein the step of generating the third watermark information of the target file comprises the following steps:

if not, acquiring target terminal information of the target terminal and second watermark information carried by the target file, and determining whether the target terminal information meets the second watermark information;

if yes, third watermark information of the target file is generated based on the target terminal information, the receiving terminal information and the second watermark information;

if the information is not satisfied, a camera of the target terminal is started, face information of a current operator is obtained, work number information of the current operator is determined based on the face information, and third watermark information is generated based on the work number information, the target terminal information and the receiving terminal information.

2. The file transmission method as claimed in claim 1, wherein the first watermark information includes an implicit watermark, and the step of acquiring target terminal information of the target terminal and generating the first watermark information of the target file based on the target terminal information if a transmission instruction triggered by the target terminal based on the target file is detected includes:

if a transmission instruction triggered by a target terminal based on a target file is detected, determining the page type of the target file;

if the page type is content, acquiring target terminal information of the target terminal, and generating a hidden watermark corresponding to the target terminal information;

and adding the hidden watermark in a content area corresponding to the content.

3. The file transfer method according to claim 2, wherein the first watermark information includes an explicit watermark, and the file transfer method further includes, after the step of determining the page type of the target file if the target terminal is detected based on a transmission instruction triggered by the target file:

if the page type is blank, acquiring target terminal information of the target terminal, and generating an explicit watermark corresponding to the target terminal information;

and adding the dominant watermark in a blank area corresponding to the blank.

4. A document transfer apparatus, characterized in that the document transfer apparatus comprises:

the generating module is used for acquiring target terminal information of the target terminal if a transmission instruction triggered by the target terminal based on the target file is detected, and generating first watermark information of the target file based on the target terminal information;

the sending module is used for sending the target file carrying the first watermark information to a receiving terminal corresponding to the transmission instruction;

the generation module is further used for determining whether the target file is an original created file or not if a transmission instruction triggered by the target terminal based on the target file is detected;

if yes, acquiring target terminal information of the target terminal, and generating first watermark information of the target file based on the target terminal information;

the generating module is further configured to obtain target terminal information of the target terminal and receiving terminal information corresponding to the transmission instruction if the target terminal information is the same as the receiving terminal information;

generating first watermark information of the target file based on the target terminal information and the receiving terminal information;

the generating module is further configured to obtain target terminal information of the target terminal and second watermark information carried by the target file if not, and generate third watermark information of the target file based on the target terminal information, the receiving terminal information and the second watermark information;

the sending module is further configured to send the target file carrying the third watermark information to a receiving terminal corresponding to the transmission instruction;

the generating module is further configured to obtain target terminal information of the target terminal and second watermark information carried by the target file if not, and determine whether the target terminal information meets the second watermark information;

if yes, third watermark information of the target file is generated based on the target terminal information, the receiving terminal information and the second watermark information;

if the information is not satisfied, a camera of the target terminal is started, face information of a current operator is obtained, work number information of the current operator is determined based on the face information, and third watermark information is generated based on the work number information, the target terminal information and the receiving terminal information.

5. A terminal, the terminal comprising: a memory, a processor and a file transfer program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the file transfer method according to any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a file transfer program which, when executed by a processor, implements the steps of the file transfer method according to any one of claims 1 to 3.