File-sharing method, apparatus, compute device and storage medium

Abstract

The present application relates to a file sharing method, apparatus, computer device and storage medium. The method comprises the following steps of: obtaining a file sharing request; Obtaining a public key corresponding to each user identifier in the first user identifier list according to the file sharing request, and associating and returning the public key corresponding to each user identifierand each user identifier in the first user identifier list; Obtaining an encrypted shared file, encrypting a temporary symmetric key using a public key corresponding to each user identification, andcalculating a public key hash value corresponding to each user identification; Generating a record identifier corresponding to the encrypted shared file, and writing the encrypted shared file into a preset shared file database in association with the record identifier; The current time point, the encrypted temporary symmetric key, the hash value of the public key and the encrypted record identifier are written into the preset temporary keystore corresponding to the user identifier by using the public key corresponding to each user identifier to encrypt the record identifier and obtain the current time point. The method can improve the security of file sharing.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular to a file sharing method, device, computer equipment and storage medium. Background technique [0002] With the widespread popularization of genomic big data, medical imaging big data and other big data applications. People are paying more and more attention to the security of genome big data, medical imaging big data and other big data in the process of storage and transmission. At present, the storage of these big data is to store encrypted documents in the cloud, and share the stored encrypted documents and shared keys through the cloud. However, when these big data are shared with multiple users, the keys will be shared multiple times, making the keys easily leaked and causing security risks. Contents of the invention [0003] Based on this, it is necessary to address the above technical problems and provide a file sharing method, device, computer equipment an...

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