Blockchain For Secure Data Sharing

Abstract

Secure data sharing has become a critical challenge in modern digital ecosystems due to increasing data breaches, lack of transparency, and dependence on centralized authorities. Traditional data-sharing mechanisms often suffer from single points of failure, unauthorized access, and limited trust among participating entities. Blockchain technology, with its decentralized, immutable, and cryptographically secure architecture, offers a promising solution to these challenges. This research paper explores the application of blockchain technology for secure data sharing, emphasizing its ability to ensure data integrity, confidentiality, transparency, and access control. The study examines how features such as distributed ledgers, smart contracts, and consensus mechanisms can be leveraged to manage data ownership, enforce access policies, and prevent tampering. Various blockchain-based data-sharing models are reviewed across domains such as healthcare, finance, and supply chain management. The paper also discusses key challenges, including scalability, privacy preservation, interoperability, and regulatory concerns. Finally, future research directions are highlighted to enhance the efficiency and practicality of blockchain-enabled secure datasharing systems