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Picture ciphertext storage and retrieval method and system in cloud storage environment

A cloud storage and image technology, applied in the field of image processing technology and information security, can solve problems such as low practical value and no systematic operation process, and achieve the effect of improving retrieval efficiency and efficient retrieval.

Active Publication Date: 2021-01-08
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method improves the efficiency of retrieval, but in the retrieval stage, the first k images with similar characteristics are also retrieved by means of image search, and there is no systematic operation process, so the practical value is low

Method used

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  • Picture ciphertext storage and retrieval method and system in cloud storage environment
  • Picture ciphertext storage and retrieval method and system in cloud storage environment
  • Picture ciphertext storage and retrieval method and system in cloud storage environment

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with specific examples, but the scope of the present invention is not limited in any way.

[0048] Such as figure 1 As shown, the system mainly includes the client, server and cloud server. The client uploads images and inputs feature text for image retrieval operations. The server needs to train the model of the target object in advance. When the user uploads the image, use the trained The model detects the target of the picture, generates the feature label of the picture, encrypts the picture and the feature label of the picture, and uploads the encrypted information to the cloud server; The feature tags in the server side are searched, the search results are obtained, and the retrieved results are decrypted and returned to the client side, so as to realize the encrypted storage and encrypted retrieval functions of pictures. The cloud server is responsible for storing encrypted image files...

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Abstract

The invention provides a picture ciphertext storage and retrieval method and system in a cloud storage environment. The system comprises a user side, a server side and a cloud server side, wherein theuser side is used for uploading a picture or a query keyword to the server side; the server is used for acquiring a feature label set of the picture, encrypting the picture and the feature label set,and storing the obtained ciphertext picture and the ciphertext feature label set to the cloud server; sending the generated ciphertext query request to a cloud server according to the query keyword;and decrypting the ciphertext picture sent by the cloud server, and returning the obtained plaintext picture to the user side. The cloud server is used for storing ciphertext pictures and a ciphertextfeature tag set, and retrieving the ciphertext pictures through a ciphertext query request. According to the method, privacy information in the picture is protected from being leaked, the function that picture retrieval can still be conducted through the text keywords after the picture is encrypted and uploaded is achieved, and the retrieval efficiency of the image in the ciphertext environment is improved by retrieving the feature tags.

Description

technical field [0001] The invention relates to the technical field of image processing and the field of information security, in particular to a method and system for storing and retrieving image ciphertext in a cloud storage environment. Background technique [0002] After more than ten years of development, cloud computing has gradually evolved from concept to application, providing various cloud services for more and more enterprises. Cloud storage is the data storage infrastructure of cloud computing. It provides on-demand, elastic scaling, cost-effective, and convenient access data storage services for government departments, scientific research institutes, enterprises and individual users. While cloud storage is widely used, cloud storage security issues are becoming increasingly prominent. For example, a large amount of image data is stored in cloud storage, and these image data may contain relevant private information of users. At present, cloud storage service pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06G06F16/58G06F16/951G06N3/04
CPCH04L67/1097H04L63/0428G06F16/5866G06F16/951G06N3/045
Inventor 陈驰原方圆田雪王佳宁苏帅
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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