ida-based cloud data integrity verification and recovery method

A technology of data integrity and recovery methods, applied in the field of cloud data integrity verification and recovery based on IDA, can solve the problems of staying in integrity verification, increasing the burden of system overhead, and large calculation overhead of the scheme, so as to reduce the complexity of labels , the effect of solving computational overhead and reducing computational complexity

CN106650503BActive Publication Date: 2019-10-18NANJING UNIV OF SCI & TECH
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-10-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a cloud side data integrity verification and restoration method based on IDA. The method comprises the following steps of 1, user initialization; 2, storage block generation; 3, vector quantity encryption; 4, label generation; 5, challenging auditing; 6, challenging responding; 7, responding verification; 8, original data restoration. According to the scheme, an original file is encoded, and damaged data is completely restored on the basis of verifying cloud side data integrity. Meanwhile, under the condition of guaranteeing system safety, the complexity of completely verifying labels and restoring calculation is reduced, and the efficiency of the method is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the fields of cloud storage and information security, in particular to an IDA-based cloud data integrity verification and recovery method. Background technique

[0002] With the widespread application of cloud storage services, more and more users store data in the cloud. However, the cloud server is "semi-trusted". After the user stores the data in the cloud, he will lose control of the data, so it is impossible to determine whether the data in the cloud server is complete. When the data is destroyed, it is impossible to restore the corresponding original data. data. Therefore, how to recover the original data of the damaged data while verifying the integrity of the data has become an urgent problem to be solved.

[0003] Aiming at the problem of integrity verification, researchers have proposed many auditing schemes for integrity verification in cloud storage. These schemes use signatures, tags and other means to verify th...

Examples

Embodiment

[0076] Example: set the number of servers to 50, and the value of m to be 8, image 3 The relationship between the recovery rate of damaged data and the number of re-audited healthy servers t is given.