Cloud Computing: A Study over Challenges, Threats and Security Models.

Cloud computing is an internet-based computing technology, where shared resources such as platform, software, storage and information are provided to customers on demand. Cloud computing is widely used due to its readily available service at low cost. It is a computing platform for sharing resources that include infrastructures, applications, software, and business processes. When the number of cloud users increases this may subsequently lead to data security and privacy threats. Integrity, Availability, Authenticity and Privacy are essential concerns for both Cloud providers and consumers as well. Data confidentiality and efficient data retrieval are major issue which block users to adopt cloud computing. This paper provides relative analysis over the challenges, threats and different security enhancement models. The security enhancement models can enhance the security features of cloud computing. It also provides a scope for research on one of the big threat which can challenge the cloud computing features and ensures future work to overcome this threat to make the cloud computing platform safer.