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Rainbow: reliable personally identifiable information retrieval across multi-cloud
Zishuai Song1,2, Hui Ma1,2, Shuzhou Sun1,2
1State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 19 Shucun Road, Haidian District, Beijing, 100084 China.
Cybersecurity
|June 12, 2023
Summary
Rainbow offers a secure multi-cloud service for retrieving personally identifiable information (PII). This system ensures data privacy, fine-grained access control, and efficient user revocation, addressing key challenges in PII sharing.
Area of Science:
- Computer Science
- Cryptography
- Cloud Computing
Background:
- Sharing personally identifiable information (PII) is vital for public affairs but poses privacy risks.
- Multi-cloud PII retrieval services offer stability but face technical hurdles.
- Existing solutions lack flexible access control, efficient user revocation, and data integrity verification.
Purpose of the Study:
- To propose Rainbow, a secure and practical scheme for PII retrieval over multi-cloud environments.
- To address challenges in PII privacy, access control, user revocation, and data verification.
- To introduce a novel cryptographic tool, Reliable Outsourced Attribute Based Encryption (ROABE).
Main Methods:
- Designed Reliable Outsourced Attribute Based Encryption (ROABE) for data privacy, fine-grained access control, and efficient revocation.
- Developed the Rainbow scheme integrating ROABE with cloud technologies for multi-cloud deployment.
- Evaluated Rainbow's performance and security on major cloud platforms (AWS, GCP, Azure).
Main Results:
- ROABE provides data privacy, flexible access control, and reliable user revocation across multiple servers.
- Rainbow demonstrates secure and practical PII retrieval in real-world multi-cloud settings.
- Experiments on mobile and computer browsers confirm Rainbow's efficiency and security.
Conclusions:
- Rainbow effectively solves critical challenges in secure multi-cloud PII retrieval.
- The proposed ROABE cryptographic tool is central to Rainbow's security and functionality.
- Rainbow offers a viable solution for privacy-preserving PII sharing in public services.
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