A security cloud audit method and system with updatable verification label

A label, security technology, applied in the field of cloud computing security

Active Publication Date: 2018-12-18
ANHUI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] (3) The data files of the period correspond

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  • A security cloud audit method and system with updatable verification label
  • A security cloud audit method and system with updatable verification label
  • A security cloud audit method and system with updatable verification label

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Experimental program
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Embodiment Construction

[0071] In this embodiment, a security cloud auditing method whose verification label can be updated is applied in a cloud storage environment composed of a user, a third-party audit organization TPA, and a cloud server. The security cloud auditing method is performed in the following steps:

[0072] Step 1. Initialization:

[0073] Step 1.1, such as figure 1 As shown, the user generates two multiplicative cyclic groups G whose order is a prime number q 1 and G 2 , two collision-resistant hash functions H 1 :{0,1} * →G 1 and H 2 :G 2 →G 1 , a computable bilinear pairing Group G 1 The two generators g and u and the user's initial public-private key pair (SK C,0 , PK C,0 ) and the initial public-private key pair (SK T,0 , PK T,0 ),in As the public key of the user and the third-party audit agency TPA respectively, and the initial public-private key pair (SK T,0 , PK T,0 ) to the third-party auditor TPA;

[0074] Step 1.2, the user sets the public parameters as (...

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PUM

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Abstract

The invention discloses a security cloud audit method and a security cloud audit system with updatable verification label, comprising the following steps: 1, initializing; 2, updating the key; 3, verifying the update of the tag; 4, verifying the generation of the tag; 5, generating evidence; 6: auditing. The invention can effectively protect the audit key of the user and the file saved by the useron the cloud server, thereby making the audit key and the file of the user more secure.

Description

technical field [0001] The invention relates to the technical field of cloud computing security, in particular to a security cloud audit method and system with updateable verification labels. Background technique [0002] With the rapid development of cloud computing technology, cloud storage services can provide huge storage resources, and have stability, convenience and computing efficiency. More and more enterprises or individual users choose to store data on cloud servers. However, since the user loses direct control over the data, the cloud server may maliciously delete or tamper with the data that the user does not frequently access, so as to obtain additional benefits. Therefore, the integrity and security of user data stored on cloud servers is a very important security issue. At present, public auditing technology is widely used in data integrity detection technology. The public audit technology introduces a third-party audit agency (TPA) to replace the user to pe...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04L9/08
CPCH04L9/0891H04L9/3213H04L63/06H04L63/123
Inventor 仲红孙松许艳崔杰应作斌田苗苗
Owner ANHUI UNIVERSITY
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