P. D. Srivastava

An Efficient and Robust RSA-Based Remote User Authentication for Telecare Medical Information Systems

It is not always possible for a patient to go to a doctor in critical or urgent period. Telecare Medical Information Systems (TMIS) provides a facility by which a patient can communicate to a doctor through a medical server via internet from home. To hide the secret information of both parties (a server and a patient), an authentication mechanism is needed in TMIS. In 2013, Khan and Kumari proposed the authentication schemes for TMIS. In this paper, we have shown that Khan and Kumari’s scheme is insecure against off-line password guessing attack. We have also shown that Khan and Kumari’s scheme does not provide any security if the password of a patient is compromised. To improve the security and efficiency, a new authentication scheme for TMIS has been proposed in this paper. Further, the proposed scheme can resist all possible attacks and has better performance than the related schemes published earlier.

λ-Statistical convergence of fuzzy numbers and fuzzy functions of order θ

In this paper, we introduce the concept of

Cryptanalysis and Improvement of an RSA Based Remote User Authentication Scheme Using Smart Card

\lambda

Difference sequence spaces derived by using generalized means

λ-statistical convergence of order

Certain properties of bounded variation of sequences of fuzzy numbers by using generalized weighted mean

\theta

Applications of the Hausdorff Measure of Noncompactness on the Space l_p(r,s, t; B^{(m)}), 1\le p< \infty

θ and strong