University of Al-Jabal Al-Gharbi
Cloud computing is quickly becoming one of the most popular and trendy phrases being tossed around in today's technology world. Cloud computing is becoming a powerful network architecture to perform large-scale and complex computing. In this paper, the authors will comprehensively survey the concepts and architecture of cloud computing, as well as its security and privacy issues. They will compare different cloud models, trust/reputation models and privacy-preservation schemes. Their pros and cons are discussed for each cloud computing security and architecture strategy.