A Multi-factor Authentication Scheme to Strength Data-Storage Access.

Nowadays Cloud Computing is one of the most useful IT technology in the world, many companies and individuals, adopt this technology due to its benefits, such as high performance infrastructure, scalability, cost efficiency etc. However Security remains one of the biggest problems that make this technology less trustful. With the big success of the Cloud, many Hackers started focusing on it, and many attacks that use to be exclusively targeting the web, are now used against Cloud system especially the SaaS. That's why authentication to the SaaS and data storage systems is now a serious issue, in order to protect our system and client information. This paper describes a scheme that strength the authentication system of data storage, using multi-factor authentication such as OTP, smart card and try to bring an alternative system that manage authentication Error issues.