Blockchain-Based Ecosystem for Secure Personal Data Exchange

Abstract

The rapid growth of digital platforms has led to an unprecedented increase in the collection and utilization of personal data, raising serious concerns about privacy, ownership, and security. Traditional centralized data management systems often lack transparency and expose user information to misuse, unauthorized access, and data breaches. To address these challenges, this paper proposes a blockchain-based ecosystem for secure personal data exchange. The proposed system leverages the decentralized and immutable nature of blockchain technology to ensure data integrity, transparency, and user control over personal information. Smart contracts are utilized to enable automated, trustless transactions between data owners and data consumers, eliminating the need for intermediaries. Additionally, cryptographic techniques are incorporated to safeguard sensitive data and enforce access control policies. The framework empowers individuals to monetize their data securely while maintaining privacy and consent. Experimental analysis demonstrates that the proposed approach enhances security, reduces the risk of data tampering, and improves trust among participants. This work highlights the potential of blockchain in transforming personal data exchange into a more secure, transparent, and user-centric process.