Trust management in cloud computing

Trust has engrossed widespread interest in social science and computer science as a solution to augment the security of the system. However, trust establishment is one of the most challenging issues in emerging cloud computing paradigm. In present research it relys mainly on perception of reputation, and self appraisal by providers of cloud services. It is becoming gradually more intricate for cloud users to make distinction (with respect to trustworthiness) among cloud service providers (CSP) offering similar kinds of services. Some kind of mechanisms are needed in the hands of users to select CSP with confidence based on determined trustworthiness of CSPs and with some degree of assertion that CSP will not behave unwisely or maliciously. Similarly, the CSP can select cloud users and provide the services to them based on trustworthiness. Though various trust management approaches exist to form trustworthiness between CSPs and users, little work has been carried out by researchers in the area of forming trustworthiness based on trust computation, management and reputation concerning the service of CSP and cloud user. The manipulated trustworthiness should help the Cloud Users (CU) to choose desirable CSP. This position paper proposes reputation and trust management algorithm (RTMA) to meet above points. In future, we simulate and prove that the proposed algorithm aims to prevent malicious users, trust manipulation and management and reputation. Finally helps the cloud user to choose desirable CSP.