Blockchain Technology in Cloud Computing: Challenges and Open Issues

Blockchain technology (BC) has recently emerged as a potential solution of security and privacy issues in cloud computing systems. Particularly, the decentralization concept is driven by Blockchain technology. This paper aims to define the cloud computing and Blockchain technologies as recent technological trends. It also surveys the latest trends of Blockchain inclusion within cloud computing. A systematic review method is conducted and evaluated in a dozen studies in time period between 2016 and 2019. The methodologies and results of these studies were explored, and it was found that these studies focused on two main aspects. First, does the data provenance, integrity, and privacy tackle in real data sets such as medical sets and business datasets? Second aspect is the data security in which various studies suggested and proposed for handling this issue. It has been noticed that there is a great variety of designs that are not contradictory, as well as variation of the interests of studies and adopted data sets. In this paper, the authors will analyze the Blockchain technology within cloud computing environments to demonstrate advantages and disadvantages in distributed data and protection.