Image based authentication with secure key exchange mechanism in cloud

In cloud infrastructure, key should be shared between user and cloud service provider (CSP) to access data in secure way. To accessing data from cloud, user will only be authenticated by CSP but they are not exchanging key among each other. In the same infrastructure to secure the communication lot of methodologies have been proposed which are basically using some methods like digital signature, homomorphic encryption, signature based encryption etc to secure data. Even some methodologies have also been proposed to identify the intrusions over the cloud infrastructure. In this paper, we have combined Image based authentication along with proposed secure key exchange between user and CSP. Firstly user will be authenticated by CSP using Image based authentication after that key will be exchanged between user and CSP and that key will change from session to session.