File sharing method, device, computer equipment and storage medium
A file sharing and file technology, applied in the computer field, can solve problems such as easy leakage, users cannot receive shared files immediately, and file security cannot be effectively guaranteed
Active Publication Date: 2020-10-16
SHENZHEN DIAGNOA GENOMICS TECH CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0003] Traditionally, in the process of file sharing, users cannot receive the shared files immediately and need to store the shared files in the server for a period of time. During this period of time, the shared files stored in the server are more likely to be leaked
However, sharing the files after decryption does not guarantee the security of the files during the sharing process, and the transferred files are easy to leak
While sharing the encrypted file, the encryption key is also shared. This method is relatively easy to leak when the encrypted file and the encryption key are stored on the server, and cannot effectively guarantee the security of the file during the sharing process.
Method used
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[0085] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0086] The file sharing method provided by this application can be applied to such as figure 1 shown in the application environment. Wherein, the server 102 communicates with the terminal 104 through the network, and communicates with the terminal 106 through the network. The server 102 receives the first encrypted file transfer request sent by the terminal 104 to the terminal 106. The first encrypted file transfer request includes the second user ID, the file ID and the first user symmetric key; the server 102 obtains the second encrypted file according to the second use...
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The present application relates to a file sharing method, a computer device and a storage medium. The method comprises: receiving a first encrypted file transmission request; acquiring a second user public key, and generating a temporary symmetric encryption key; acquiring a first encrypted file; obtaining an original file according to a first user symmetric key, and using the temporary symmetric encryption key to encrypt the original file so as to obtain a second encrypted file; using the second user public key to obtain an encrypted key file; sending the first encrypted file transmission request to a terminal corresponding to a second user, and receiving a second user symmetric key returned by the terminal according to the first encrypted file transmission request; acquiring a second user private key according to the second user public key, and obtaining the temporary symmetric encryption key according to the second user private key; and obtaining the original file according to the temporary symmetric encryption key, obtaining a third encryption file according to the second user symmetric key, and transmitting the third encryption file to the terminal corresponding to the second user.
Description
technical field [0001] The present application relates to the technical field of computer technology, in particular to a file sharing method, device, computer equipment and storage medium. Background technique [0002] With the development of computer technology, people have higher and higher requirements for the security of file storage and file transmission. However, at present, the file sharing is generally to share the file after decryption, or to share the encrypted file at the same time. Also share the encryption key. [0003] Traditionally, in the file sharing process, users cannot receive the shared files immediately, and all need to store the shared files in the server for a period of time. During this time, the shared files stored in the server are more likely to be leaked. However, sharing the files after decryption does not guarantee the security of the files during the sharing process, and the transferred files are easy to leak. While sharing the encrypted fil...
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IPC IPC(8): H04L29/06H04L9/08H04L29/08
CPCH04L9/0822H04L9/0894H04L63/0435H04L63/067H04L63/0838H04L67/06H04L9/0825H04L9/14H04L9/3239H04L63/0428H04L63/06
Inventor 孙亚洲陈斌郭雨舜杜晓骏陈杰
Owner SHENZHEN DIAGNOA GENOMICS TECH CO LTD