Title of Project Security Issues in Cloud Computing Description of your artefact Due to the fast growing development in the field of computer, security is becoming a major issue. Security of computer is divided into two areas detection of security violation and preventative security. Both these areas are different from each other because preventative security leads towards the prevention of system while detection is to detect the root cause for security. Preventative security is easier and cost effective while detection is difficult part to detect the vulnerability in system and it costs more. In practise detection depends on the system administrator's knowledge about the system and about its users, which is similar to penetration testing. Cloud computing is quickly expanding that has a technology connection with Grid Computing, Utility Computing, Distributed Computing. The aim of this contribution is to identify data security challenges for adopting cloud computing and solution from real world for the challenge. Also, list out solution for the cloud computing data security challenge that has no mitigation strategies identified. The objective of this work is to provide a solution which will be able to enhance the security of data that is stored by user on cloud systems. For data security and data privacy DCS approach is used in this work to achieve the desired results. • The first task is to identify the characteristics of this approach for using in data security. • Based on those characteristics, research would be done on the available security techniques. • Check their suitability to be used in the DCS approach. • Last step will be to evaluate the proposed solution in cloud environment test bed. When multiple organizations at the same time share resources there is a risk of data security or data misuse. To avoid risk it is necessary to secure data repositories. Protection of data and privacy of data is the most Important challenge. What methodology (structured process) will you be following to realise your artefact? As data security and data privacy is normally handled by the service providers. The data owner or user may not be fully aware of the security challenges. The research for finding the solution to these data security issues is active in different directions. There are researches which focus towards improving the data security at application levels or hardware levels. The solution provided through these researches does not normally provide comprehensive solution. They still keep the effort to establish security measures under the control of cloud provider. Data Centric Security (DCS) is a developing methodology that aims to give data owners with full control of their data security from inside the data itself, rather than the security of networks all through the data lifecycle on the cloud. The idea of the DCS approach is interpreted in different ways in the literature and there is not yet a standardized framework of applying this way to deal with the cloud model. This project is intended to enhance cloud computing security by proposing a solution based on the DCS approach. DCS will provide security on the data level to the client.