VOLE-PDRAA: An Efficient Privacy-Preserving Data Retrieval Protocol With Anonymous Authorization Based on Vector-OLE

VOLE-PDRAA is a privacy-preserving data retrieval protocol designed to help organizations follow GDPR (General Data Protection Regulation, European privacy law) requirements while protecting personal data. The protocol uses advanced cryptographic techniques, including Vector-OLE (a method for secure computation), non-interactive zero-knowledge proofs (NIZK, a way to prove something is true without revealing details), and labeled private set intersection (labeled-PSI, a technique to find matching data without exposing the data itself) to allow data controllers to verify user requests without learning identifying information, while maintaining security even against future quantum computers.