Zero-Knowledge Authentication for Secure Multi-cloud Computing Environments

A multi-cloud computing refers to the environment where services such as resources and software, etc., can be shared and provided through an agreement between two or more cloud computing service providers. A user requires multiple authentications in order to use the cloud service between the shared service providers. However at such time, users are exposed to vulnerabilities such as their authentication information being exposed to service providers whom they did not sign up with or being exposed during the multiple authentications. Therefore in this paper, the zero-knowledge authentication protocol for ensuring anonymity is proposed. The proposed protocol is safe for all know vulnerabilities and can be used as a safe protocol in multi-cloud environment.