The personal authentication service and security enhancement for optimal strong password

摘要

The ability of the Cloud to share information and provide certain services to the network linkedpeople. The resources are provided according to the need of the user. In cloud, the user's data aremoved to the large data storage, whichmust be secured. The various organization have expressedconcerns about security aspects of cloud computing. One of the major perspectives is to providesecurity to one's data, which is stored remotely from the user's location. This paper describes anenhanced approach for the already used data security model in cloud environment. The proposeddata security model includes generationofOTPusingHMAC(Hashbased message authenticationcode) for user authentication process. This paper also includes a comparativeMD5 and SHAalgorithmsfor the better implementation of the model. This model best suits for any of the layers in it,to achieve this we use certain encryption algorithms that convert original text to the form that isnot understood by the third party. Finally, data availability can be considered as a major concern,which is viewed as threat associated with the cloud environment. To overcome this problem, wegenerally replicate our data and store it in various locations.