Decentralised Cloud Architecture: Blockchain Driven Integrity and Raptor Codes for Enhanced Data Transmission

Ensuring data integrity and security has become integral in the digital era. Blockchain, an immutable ledger can be leveraged to provide data integrity to the cloud system. Centralised cloud systems present challenges in data integrity, reliability and security due to single point of failure and control. The alternative decentralised approach distributes data across multiple nodes thus reducing reliance on one server. However, this can lead to issues like network congestion, difficulty verifying file integrity and origin of tampering. The proposed system uses a combination of decentralised cloud nodes, blockchain, and fountain codes to provide a robust, scalable and secure cloud solution. Blockchain is used to store hashes of the files and validate every operation ensuring transparency and integrity. To provide a robust data recovery and enhance reliability of communication amongst the nodes, fountain codes are utilised for data transmission.