Method for testing integrity of cloud storage data

Abstract

The invention belongs to the field of communication technology, and specifically relates to a method for testing integrity of cloud storage data. The method provided by the invention mainly comprises: a system initializes and allocates a signature key and a corresponding authentication key to a user; the user uploads storage data to a cloud server; an independent third party auditor tests the integrity of the storage data stored on the cloud server; and the user judges the test correctness of the third party auditor. The process provided by the invention has the following advantages: the third party auditor needs no user management certificate, namely TPA faces no certificate management problem; moreover, the method in the scheme can be used for effectively resisting malicious third party auditors, and when the third party auditor deviates correct protocol contents, the security of the scheme will not be threatened, and the third party auditor cannot successfully cheat the cloud user and (or) the cloud server.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a non-certificate checking method for cloud storage data integrity capable of resisting malicious auditors. Background technique [0002] Cloud computing is the next-generation information technology (IT) architecture that is most concerned by academia and industry. It has many characteristics that many IT technologies that have been maturely applied in the industry so far do not have many features, such as: on-demand access to self-service services, ubiquitous network access, location-independent resource pools, rapid scaling of resources, pay-per-use, and risk transfer. Cloud computing brings together huge computing resources, storage resources and other service resources, provides users with a variety of novel, convenient and reliable services, and brings huge business opportunities and benefits to cloud service providers. Among many services, cloud storage ...

AI Technical Summary

Problems solved by technology

Although the cloud server utilizes more secure storage technology and provides more reliable storage devices, in the actual cloud environment, there are many malicious adversaries who try to tamper with or destroy the data stored on the cloud server for their own interests. user data on

[0005] 2. Internal Security Threats

First, users may not have the computing power to periodically check the integrity of cloud data

Second, users may not have the communication capabilities to periodically check the integrity of cloud data

[0009] 2. The fairness of inspection cannot be guaranteed

This means that the TPA in these schemes faces the problem of certificate management

In addition, all existing public integrity audit schemes assume that the TPA is a completely trusted entity, and accordingly, these schemes face serious security threats when the TPA acts maliciously

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