File processing method, electronic equipment and storage medium

A technology for file processing and electronic equipment, applied in the field of data processing, can solve problems such as low file search efficiency, and achieve the effect of improving file search efficiency, privacy and security.

Pending Publication Date: 2021-12-31
卓尔智联(武汉)研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing SSE scheme must perform precise index query based on keywords, resulting in low file search efficiency.

Method used

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  • File processing method, electronic equipment and storage medium
  • File processing method, electronic equipment and storage medium
  • File processing method, electronic equipment and storage medium

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Embodiment Construction

[0067] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings, and the described embodiments should not be considered as limiting the present invention, and those of ordinary skill in the art do not make any All other embodiments obtained under the premise of creative labor belong to the protection scope of the present invention.

[0068] In the following description, references to "some embodiments" describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or a different subset of all possible embodiments, and Can be combined with each other without conflict.

[0069] In the following description, the term "first\second\third" is only used to distinguish similar objects, and does not represent a specific order for objects. Understandably, "first\second\third" is used in...

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PUM

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Abstract

The embodiment of the invention discloses a file processing method, electronic equipment and a storage medium, and the file processing method comprises the steps: determining a first identification vector of a file according to the position of the file in a file set; generating a first storage position for storing a first identification vector according to the hash function and the feature vector of the file; determining a second identification vector according to a hash table corresponding to the hash function and the first identification vector; and storing the second identification vector into a second storage position obtained by performing pseudo-random permutation on the first storage position; wherein the second storage position is used for indicating the first storage position corresponding to the feature vector for searching the to-be-searched file according to the first identification vector of the to-be-searched file when the file is searched. Therefore, according to the second storage position, the corresponding file can be searched based on the position of the to-be-searched file in the file set, and a user does not need to provide an accurate keyword for searching, so that the file searching efficiency is improved.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a file processing method, electronic equipment and a storage medium. Background technique [0002] In recent years, with the development and popularization of cloud computing, some cloud service products have begun to save data files and build systems for users on cloud servers. More and more data owners choose to store their massive data, especially audio and video, in Store the multimedia files in the cloud to the cloud. In order to protect personal privacy and sensitive data (such as personal data files, medical care records, family life videos, etc.), users need to perform encryption operations locally when uploading files. [0003] In the existing technology, when a user needs to search for relevant data files, one method is to download all ciphertexts locally for decryption, and search on the decrypted plaintext, but this will bring huge network overhead and storage overhead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/43G06F16/41G06F16/483G06F21/60
CPCG06F16/43G06F16/41G06F16/483G06F21/602
Inventor 吴良顺
Owner 卓尔智联(武汉)研究院有限公司
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