Science and Development Network (SciDev.Net)
Security threats are considered the main barrier that precluded potential users from reaping the compelling benefits of the cloud computing model. Unfortunately, traditional password authentication jeopardizes user privacy. Anonymous Password Authentication (APA) represents a promising method to maintain users' privacy. However, the major handicap that faces the deployment of APA is the high computation cost and inherent shortcomings of conventional password schemes. In the authors' proposed scheme, they present a new setting where users do not need to register their passwords to service provider. They are supplied with the necessary credential information from the data owner.