A data encryption method and system for performing terminal data backup through a server

A technology of data encryption and data backup, applied in transmission systems, electrical components, etc., can solve the problem that terminal equipment cannot restore the required data normally.

Active Publication Date: 2018-09-04
成都三零瑞通移动通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problem that the terminal data backup method in the prior art cannot normally restore the required data when the terminal equipment is damaged or lost, the present invention discloses a data encryption method for performing terminal data backup through a server

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  • A data encryption method and system for performing terminal data backup through a server
  • A data encryption method and system for performing terminal data backup through a server

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The invention discloses a data encryption method for backing up terminal data through a server, which specifically includes the following steps:

[0028] Step 1, the backup terminal initiates a backup request to the server, and the server sends its own public key to the backup terminal;

[0029] Step 2, the backup terminal generates a working key, and encrypts the backup data with the working key to form a backup ciphertext;

[0030] Step 3: Use the public key of the server obtained in step 1 to encrypt the working key to form the ciphertext of the working key, and the backup terminal sends the backup ciphertext and the ciphertext of the working key to the server for storage;

[0031] Step 4: The recovery terminal initiates a recovery request to the server and sends the public key of the recovery terminal to the server. ...

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Abstract

The invention discloses a data encryption method and system conducting terminal data backup through a server. The method includes the steps that firstly, a backup terminal initiates a backup request, and the server sends a public key of the server to the backup terminal; secondly, the backup terminal generates a work key, and the work key is used for encrypting backup data to form a backup ciphertext; thirdly, the public key of the server is used for encrypting the work key to form a ciphertext of the work key, and the backup ciphertext and the ciphertext of the work key are sent to the server to be stored; fourthly, a recovery terminal initiates a recovery request and sends a public key of the recovery terminal to the server, the server decrypts the ciphertext of the work key, and the public key of the recovery terminal is used for encrypting the work key; fifthly, the backup ciphertext and the ciphertext of the work key are sent to the recovery terminal; sixthly, the recovery terminal decrypts the ciphertext of the work key through a private key of the recovery terminal so as to obtain the work key, the work key is used for decrypting the backup ciphertext, and a plaintext of the backup data is obtained.

Description

technical field [0001] The invention relates to the technical field of data backup, in particular to a data encryption method and system for performing terminal data backup through a server. Background technique [0002] At present, various information terminals are being increasingly widely used. For users, the data with the highest value is the data generated during the use of various information terminals. Therefore, all types of information terminals generally provide user data backup / restore functions. At present, users generally have various types of data backup / restore terminals such as computers, mobile phones, and tablet computers, and the frequency of replacement of these terminal devices is increasing. At the same time, there are also problems of damage and loss of various devices, especially mobile devices, which have a higher risk of loss. Therefore, users need to perform seamless backup and recovery of data between multiple different terminal devices, and at ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/0428
Inventor 蔡罗成
Owner 成都三零瑞通移动通信有限公司
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