De-Centralized Block chain Based E-vault System: Leveraging Block chain, Decentralized Database (IPFS)

Abstract

In an era where digital transformation dominates and data privacy is paramount, existing cloud-based storage systems often fall short in providing trustless environments and tamper-proof data integrity. This paper justifies the need for a decentralized e-Vault storage application that addresses these limitations by leveraging block chain technology and the Inter Planetary File System (IPFS). The proposed solution integrates Pinata IPFS for decentralized file hosting, ensuring data immutability and accessibility. Ethereum-based Smart Contracts are employed to maintain a transparent, tamper- resistant ledger of records, while AES-GCM encryption safeguards data confidentiality. To enhance usability, modern web frame works are used for the user interface, while Meta Mask enables decentralized wallet management. Additionally, Fire base supports user authentication and metadata management, and Ganache facilitates local block chain testing. This architecture is deliberately chosen to overcome the vulnerabilities inherent in centralized systems, offering a secure, flexible alternative particularly well-suited for applications demanding high integrity and controlled access such as legal document storage, academic record management, and governmental archives. Each component of the system is strategically integrated to uphold data sovereignty, ensure auditability, and empower users with secure control over their digital assets.