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Data decryption method, device and system

A technology for decrypting and encrypting data, which is applied in the computer field and can solve problems such as encrypted data cannot be decrypted

Active Publication Date: 2015-12-23
浙江杭海新城控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a data decryption method, device and system to solve the defect that the encrypted data on the disk may not be decrypted

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  • Data decryption method, device and system
  • Data decryption method, device and system
  • Data decryption method, device and system

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Embodiment Construction

[0027] The invention saves the password information of the local disk of the host to the remote server. The data on the disk is password encrypted and stored in some sectors on the disk. The password information of a disk includes the identity of the disk, the identity of the user who manages the disk, and the encryption password of the disk. Wherein, the encryption password of the disk is the password used when encrypting the data on the disk. A host user can manage one or more disks. The disk password information of a host user includes the password information of the disk managed by the host user. The disk password information of one or more host users is stored on the server. The server can organize the password information of disks managed by one or more host users into a disk password information list, and a host user in the disk password information list can correspond to the password information of one disk, or can correspond to the password information of multiple ...

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Abstract

The invention provides a data decryption method and a data decryption device, and a system. The method comprises the following steps that a host acquires encrypted message of a local disk, which is saved on a server, according to an identity label of the local disk and an identity label of a host user managing the local disk; the server saves disk encrypted messages of one or more host users, wherein the disk encrypted messages of the host users comprise encrypted messages of each disk managed by the host users, and the encrypted messages of the disks comprise identity labels of the disks, identity labels of the host users managing the disks, and encrypted passwords of the disks; and the host decrypts encrypted data on the local disk according to the encrypted password of the local disk in the encrypted messages of the local disk.

Description

technical field [0001] The embodiments of the present invention relate to computer technology, and in particular to a data decryption method, device and system. Background technique [0002] In the cloud computing scenario, the user relocates the computing and storage resources stored locally to the cloud computing service provided by the operator, and the user loses the security control of the data. In order to solve the above problems, the cloud computing data center can encrypt the data in the VM disk by means of disk encryption. Based on the consideration of operational efficiency, the encryption system usually adopts a combination of symmetric encryption and asymmetric encryption algorithms. The disk data is encrypted and decrypted using a symmetric encryption algorithm, and the symmetric encryption key is encrypted and decrypted using an asymmetric encryption algorithm. Usually, the private key of the asymmetric encryption algorithm is stored in the USBKey and held b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62H04L9/32H04L29/06
Inventor 任伟峰
Owner 浙江杭海新城控股集团有限公司