Remote login password authentication scheme using tangent theorem on circle

Abstract

Abstract:In this paper, we propose a remote password authentication scheme based on geometry. We use some simple tangent theorems of a circle, RSA encryption technique, and a strong one-way function to mutually authenticate the user and the server. It has a facility for a legal user to freely choose and change his password using his smart card. The security of this scheme depends on the tangent points located in a plane associated with the circle and the tangent line itself. In this scheme, the user anonymity is preserved and the communication cost is also reduced due to checking the correctness of the password before sending any authentication message.Keywords: authentication; RSA cryptosystem; tangent theorem; circle; smart card.Reference to this paper should be made as follows: Kumar, S. and Om, H. 94 S. Kumari and H. OmThis paper is a revised and expanded version of a paper entitled 'Remote login password authentication scheme using tangent theorem on circle' presented at FICTA 2014, Bhubaneswar, India, 14-15 Novenber 2014.