PrivacyGuard: A hierarchical privacy-preserving framework for IoT-fog-cloud architectures

Key Points

• The PrivacyGuard framework enhances data security through a hierarchical design, promoting privacy-preserving methods.
• In simulated tests, the framework significantly lowered data access risks, achieving a 30% reduction compared to existing methods.
• An evaluation was conducted using fog computing and cloud architectures to assess robustness and efficiency in various scenarios.
• The framework highlights the need for efficient privacy measures as the importance of data security rises in internet of things applications.