Data Sharing in Cloud Environment through Blockchain and IPFS in Secure Manner

Abstract

In modern cloud computing environments, data is often stored on cloud servers in the form of ciphertext to ensure security and confidentiality. Access to this encrypted data typically requires a third party to provide an access key to the consumer. However, the existing use of the SHA-256 encryption method has limitations, as it leaves the data vulnerable to tampering. To address this issue, a Proof of Stake (PoS) algorithm is proposed as a more secure alternative. In this approach, data is encrypted using a robust encryption algorithm, and all transactions are recorded on a blockchain using the PoS algorithm. This method not only enhances data security by making tampering more difficult but also ensures the integrity of transactions by securely storing them in blocks. The proposed system offers a more resilient and tamper-resistant solution for cloud data storage and access, managing sensitive information in the cloud. Additionally, it reduces dependency on third-party key providers, further minimizing security risks.