File compression and acquisition method, device and equipment and storage medium
A technology of file compression and compression algorithm, applied in electrical components, instruments, computing, etc., can solve the problems of low compression efficiency of compressed files, low security of uploading to cloud servers, etc.
Active Publication Date: 2020-09-18
深圳赛安特技术服务有限公司
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[0004] The main purpose of the present invention is to solve the problems of low compression efficiency of compressed files and low security of uploading cloud servers
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[0027] The embodiment of the present invention provides a method, device, device, and storage medium for file compression and acquisition. By using a preset function to calculate the file information size of the target file to be compressed, an appropriate file compression is selected taking into account the compression ratio and compression speed. This method improves the compression efficiency of the compressed files; after the files are compressed, the compressed files are encrypted asymmetrically and the encrypted files are transmitted to the cloud server, which improves the security of the compressed files and decompressed files for users, and ensures the compressed files Will not be maliciously cracked.
[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be...
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The invention relates to the technical field of cloud, discloses a file compression and acquisition method, device and equipment and a storage medium, and is used for solving the problems of low compression efficiency of a compressed file and low security of uploading the compressed file to a cloud server. The file compression and acquisition method comprises the following steps: obtaining the numerical value of file information amount carried by a target file by utilizing a preset function; if the value of the file information amount is greater than a threshold value, compressing the target file according to a splitting code and a first compression algorithm to obtain a first compressed file; if the value of the file information amount is less than the threshold value, compressing the target file according to the splitting code and a second compression algorithm to obtain a second compressed file; encrypting the compressed files by using an encryption algorithm to obtain an encryptedfile; generating a mapping value of the encrypted file according to the encrypted file and a preset algorithm, and sending the mapping value of the encrypted file to a cloud server; and extracting thecompressed files in the cloud server according to the mapping value of the client and the mapping value of the encrypted file.
Description
technical field [0001] The present invention relates to the field of cloud technology, in particular to a method, device, device and storage medium for file compression and acquisition. Background technique [0002] With the continuous development of technology, computer technology has been integrated into all walks of life, and the transfer of files between multiple computers can be satisfied through servers and cloud servers. Generally, when files are transferred between multiple computers, the files to be transferred are in compressed form. There are many methods for compressing files, but the functions are relatively single. For example, file compression in the form of ZIP has the advantage of fast compression speed. The advantage of compressing files in the form of RAR lies in its strong security. [0003] In the existing process of compressing files, the compression method is single, and only one compression method can be selected for different compressed files, resul...
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IPC IPC(8): H04L29/06H04L29/08G06F16/174
CPCH04L67/06H04L69/04H04L63/0442G06F16/1744
Inventor 龙腾飞
Owner 深圳赛安特技术服务有限公司