Using Blockchain in Cloud Computing to Enhance Relational Database Security

Cloud computing has now become a very standardised concept in our society. However, many modern applications need better level of security that includes saving data from internal breaches. Thus, cloud databases effective mechanisms to keep track modifications. This paper will introduce the enhanced structure relational database (RDB) based on blockchain technology (BC) named BC over cloud-RDB. To provide client with an self-verification process detect and prevent erroneous manipulation RDBs. We proposed two systems improve cloud-RDB: agile BC-based RDB secure RDB. Both are distributed among several service providers Byzantine Fault Tolerance consensus. Additionally, both rely linking records each other using SHA-256. At same time, uses proof-of-work consensus make offensive operation impossible. Based systems’ performance analysis, is highly suggested for high throughput database. On hand, recommended contains sensitive low performance. The improved flexible can be operated owner’s specifications.