A method and device for file transfer

Abstract

The object of the present invention is to provide a method, device and system for file transmission. Compared with the prior art, the present invention uses the service device to generate the first signaling, and when the user equipment sends the file transfer request, verifies the file transfer request based on the first signaling, if the first If the signaling already corresponds to the transferred file, reject the file transfer request; otherwise, if the first signaling has not yet corresponded to the transferred file, then allow the user equipment to perform file transfer; thereby using the first signaling to Limit the number of file transfers to ensure that one signaling corresponds to only one file transfer, which effectively avoids possible conflicts when multiple file uploads occur, and also allows users to check the uploaded files, avoiding Multiple views of uploaded files. Therefore, the present invention can ensure the security, reliability and effectiveness of file transmission, and at the same time improve user experience.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a file transmission technology. Background technique [0002] At present, Internet services have been able to cover people's various life and work needs. With the continuous expansion of the coverage of Internet services, some Internet services require users to upload qualification documents with authentication properties (such as personal ID cards, business licenses, authorization letters, etc.) to provide corresponding services. [0003] For the transmission of such qualification files, it is necessary to ensure the security during the transmission process, including the security during the upload process and the security during the viewing / display process. However, in the prior art, in the process of uploading, the security of the uploaded file is only ensured by means such as identifying the terminal, and if there are multiple authenticated terminals uploading the same quali...

AI Technical Summary

Problems solved by technology

However, in the prior art, in the process of uploading, the security of the uploaded file is only ensured by means such as identifying the terminal, and if there are multiple authenticated terminals uploading the same qualification file to the server at the same time , it is impossible to determine which terminal is uploading a legal file, and conflicts are likely to occur; in downloading, the user is prohibited from viewing the uploaded file again to prevent illegal elements from obtaining the image again through the image url or other methods. Obviously, this method makes it impossible for users to check and verify the uploaded files again

[0004] Therefore, the file transfer method in the prior art still has certain potential safety hazards for files with special requirements such as qualification files, and at the same time, there is also the defect of sacrificing user experience for safety.

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