Proof of Ownership

Purpose

The Proof of Ownership and Authenticity (PoC) system is designed to allow users to verify their ownership of Amazon data while ensuring its authenticity, all without revealing the raw content to third parties. This solution protects user privacy while demonstrating the validity of submitted data, making it suitable for data monetization, research projects, and reward systems.

Relevance

As privacy concerns grow, this system offers a way for users to maintain control over their personal data while proving its authenticity. For data marketplaces, it ensures contributors can demonstrate ownership without compromising sensitive information. In research and reward programs, it builds trust by validating the data's origin and integrity without exposing the raw details.

How it Works

The PoC system leverages cryptographic techniques and Ethereum-based signature verification to validate ownership. Users sign a fixed message with their Ethereum private key to generate an Encryption Key (EK), which is then used to encrypt their Amazon data. Ownership is verified by validating the Ethereum signature, decrypting the file with the EK, and comparing the decrypted content to the original data. This process confirms both authenticity and ownership while keeping the data private. The system comprises modules for cryptographic operations, Ethereum signature handling, and file processing. It supports both local files and remote URLs, ensuring flexibility in how users submit their data. Validation involves comparing the encrypted and decrypted files to guarantee integrity and authenticity.

Implementation

To use the PoC system, users provide their Amazon data file, an encrypted version of the file, an Ethereum signature, a public Ethereum address, and a fixed encryption seed. The system then verifies ownership by performing the cryptographic checks and returning a success or failure result. Dependencies such as web3 and pycryptodome must be installed for proper functioning.

Future Enhancements

The system demonstrates the viability of proof of ownership and authenticity but can be further improved with advanced encryption techniques, decentralized storage integration, and optimizations for scalability. These refinements would enhance security and expand its applicability to broader use cases.

This PoC system represents a robust solution for secure and private verification of data ownership, providing confidence in the authenticity and integrity of user contributions while respecting privacy.