A Novel Triangle Centroid Authentication Protocol for Cloud Environment

  • K. Anitha Kumari
  • G. Sudha Sadasivam
  • Bhandari Chetna
  • S. Rubika
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 176)


Cloud computing allows the use of Internet-based services to support business processes and rental of IT-services on a utility-like basis. Cloud computing is a concept implemented to decipher the daily computing needs of users for hardware, software and other resources dynamically. Server consolidation poses risks for data privacy and cloud security. Authentication remains a significant challenge in cloud. The proposed approach used a triangle centroid based authentication protocol. In traditional authentication protocol a single server stores the sensitive user credentials, like username and password. When such a server is compromised, a large number of user passwords, will be exposed. Our proposed approach uses a dual authentication protocol in order to improve the authentication service in cloud environment. The protocol utilizes the fundamental concept of triangle centroid and strengthening parameters derived from it to perform user authentication. In the proposed protocol median angles and the prime numbers representing the intercepts of triangle sides will be used for authentication. During the registration process, the password given by user is transformed to represent the centroid and strengthening parameters are derived using it. Whenever a user logs in, based on his password centroid is recalculated and these strengthening parameters stored are used to authenticate the user. The entire authentication protocol is hosted as a service in the cloud environment to authenticate the web services. Authentication security is ensured due to the splitting of the strengthening parameters asymmetrically.


Dual authentication authentication protocol triangle parameters centroid cloud computing cloud security 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • K. Anitha Kumari
    • 1
  • G. Sudha Sadasivam
    • 2
  • Bhandari Chetna
    • 1
  • S. Rubika
    • 1
  1. 1.Department of Information TechnologyPSG College of TechnologyCoimbatoreIndia
  2. 2.Department of Computer Science and EngineeringPSG College of TechnologyCoimbatoreIndia

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