Cloud storage data security auditing method allowing group-user identity revocation

A data security and user identity technology, applied in the field of data security, can solve problems such as indistinguishability and loss of cloud users
CN103501352AInactive Publication Date: 2014-01-08BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2014-01-08
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a cloud storage data security auditing method allowing group-user identity revocation. The cloud storage data security auditing method comprises the following six steps: (1) generating keys (KeyGen); (2) calculating resign keys (ReKey); (3) generating signs (Sigh); (4) generating resigns (ReSign); (5) generating proofs (GenProof); (6) checking the proofs (CheckProof). Not only can shared data be effectively audited by a third party auditor after group-user identities are revoked, but also the security of the method is further enhanced compared with the existing method for solving a public auditing protocol allowing group-user identity revocation. As a result, the method disclosed by the invention can enhance the confidence of people in cloud storage security and further promote the health development of cloud storage environments.
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Description

technical field

[0001] The invention relates to the technical field of data security, in particular to a cloud storage data security audit method that allows group user identities to be revoked. Background technique

[0002] With the development of Internet and computing technology, people's life has quietly entered the "cloud era". Being in the "cloud", all kinds of information people want are at their fingertips, and they can use almost unlimited software and hardware resources on demand like tap water. Cloud computing has truly brought human beings into the information age. However, while cloud computing brings us a lot of convenience, it also faces many security challenges. If it cannot be solved well, it will seriously affect the development of cloud computing.

[0003] Cloud storage is an important form of "Infrastructure as a Service" (Infrastructure as a Service, IaaS) in cloud computing, which provides storage resources as services to users through the Internet. W...

Claims

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