Remote Attestation Scheme Using Camenisch Et Al.’s Dynamic Accumulator with Certificate Generation

Cloud computing is a dynamic computing platform that is used world-wide for computation by all the high level and low level companies like Amazon, Google etc. Cloud Computing provides the users to access their data and save it irrespective of their location. Many companies and clients rent virtual machines for running their applications and saving their highly confidential data. However this platform is not totally secure and it has many security issues related to it. [1] In this paper, we combine trusted cloud computing and anonymous remote attestation scheme using dynamic accumulators and put forward an enhancement for this scheme which uses certificate generation mechanism for allowing the cloud manager to keep a track on the users without actually knowing the credentials of users. We mainly focused on the problem of authentication, key generation and service revocation issues. We are utilizing both the dynamic Camelish et al.’s accumulator and one way accumulator functionalities combined with an X509 certificate by Certificate Authority (CA) to solve the issue of authenticating the user and identifying the user without revealing its credentials to the Cloud Service Provider (CSP).This makes the cloud manager revoke the access of a specified user for cloud computing service provider. In addition this infrastructure is able to trouble shoot the problem of storage in Trusted Coordinator (TC). [2]