• Aniket Patil
• Pratham Jain
• Jay Bhoir
• Mayur Pawade
• Poonam Thakre

Cloud systems offer low-cost, low-cost computing and storage models. Many organizations and individual end users use cloud storage services to back-up their important data. However, this security infrastructure suffers from various threats and security issues. Before sending data to the cloud server, some data protection measures should be implemented to ensure security. Blockchain is an advanced technology that stores data in a distributed manner and provides more storage. Therefore, we propose a blockchain-based system with ciphertext encryption principles of identity-based encryption to provide user access control and encryption methods in cloud security systems to solve the above problems. Our system provides three important features to provide a secure environment. First, a blockchain network was designed to register data owners and issue permissions using key generation algorithms. Second, data owners and authorized users store public information in the blockchain system, set access policies, and create user private keys to solve escrow issues. Third, real-time identity modification is applied to achieve granular access control using user removal techniques. Test results, analysis and performance analysis show that our system provides a suitable and reliable location.

Blockchain, IPFS, Node-Based-Storage, Cloud-Based-Storage.

"Blockchain based Decentralised File Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 4, page no.a749-a754, April-2024, Available :http://www.jetir.org/papers/JETIR2404094.pdf

"Blockchain based Decentralised File Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 4, page no. ppa749-a754, April-2024, Available at : http://www.jetir.org/papers/JETIR2404094.pdf