Data processing method and device

A data processing and data technology, applied in the field of secure communication, can solve the problems of cloud storage service data security cannot be guaranteed, and achieve the effect of protection security, secure transmission and processing

Active Publication Date: 2022-05-03
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a data processing method and device to at least reduce the problem that the security of cloud storage service data cannot be guaranteed in the prior art

Method used

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Embodiment Construction

[0022] In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0023] In order to illustrate the technical solutions described in the present application, the following specific embodiments are used for description.

[0024] It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and / or component...

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Abstract

This application is applicable to the field of secure communication, and specifically discloses a data processing method and device. In this method, cloud storage data is downloaded from a storage server; The target ciphertext fragment matched by the local user attribute of ; if the target ciphertext fragment only contains the first ciphertext fragment and does not contain the second ciphertext fragment in the owner data ciphertext, use the local private key to decrypt the first ciphertext fragment; Determine the target authorized user attribute information corresponding to the second ciphertext fragment according to the authorized user attribute policy, and send the second ciphertext fragment to the second terminal device corresponding to the target authorized user attribute information, so that the second terminal device decrypts the second encrypted text fragment. As a result, multiple terminal devices can assist in decrypting cloud ciphertext data, and there is no need for direct interaction between the data owner and the decrypting user, which ensures the security and privacy of user data and can meet the ciphertext sharing needs in more scenarios.

Description

technical field [0001] The present application belongs to the technical field of secure communication, and in particular, relates to a data processing method and device. Background technique [0002] With the continuous innovation of communication and network technology, the amount of information is increasing explosively, and people's demand for storage space is increasing. In recent years, the sudden emergence of the Internet has had a huge impact on the management methods of traditional industries and traditional enterprises. The proposal and development of cloud storage services and the concept of storage as a service have made cloud storage a mainstream solution for storing massive data. [0003] In the cloud storage solution, users need to store data on a third-party cloud server, and download the required data from the cloud server when needed. Users can reduce the investment in data management and equipment management, and do not need to invest a lot of hardware and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/602G06F21/6218
Inventor 贺颖王海燕李元吉君恺
Owner SHENZHEN UNIV
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