Remote data possession checking scheme with supporting efficient group user authority management for shared cloud...

Area of Science:

• Computer Science
• Information Security
• Data Management

Background:

• Existing shared data auditing schemes often neglect group user authorization management.
• Shared big data environments necessitate robust access control mechanisms.

Purpose of the Study:

• To propose a novel remote shared data checking possession scheme supporting group authority management.
• To address the limitations of current auditing schemes in handling group authorizations.

Main Methods:

• Introduction of a trusted entity group manager for user rights management.
• Formalization of a new algebraic structure operator: authorization invisible authenticator (AIA).
• Development of basic and standard AIA schemes, with the standard AIA incorporating a User Information Table (UIT) and identity-based encryption (IBE).

Main Results:

• The proposed scheme effectively supports group authority management, including user enrollment, revocation, and updates.
• The standard AIA scheme offers enhanced security and broader applicability for high-level security scenarios.
• Security analysis and performance evaluation confirm the scheme's safety and feasibility.

Conclusions:

• The novel scheme provides a secure and efficient solution for remote shared data auditing with group authority management.
• The integration of AIA and IBE enhances data access control in shared big data environments.
• This work contributes to improving data security and manageability in collaborative big data settings.