13 citations · 22 across the 11 of their papers we have counts for
11 papers
Security Analysis of a Remote User Authentication Scheme with Smart Cards
Manoj Kumar
Yoon et al. proposed a new efficient remote user authentication scheme using smart cards to solve the security problems of W. C. Ku and S. M. Chen scheme. This paper reviews Yoon e…
The Modified Scheme is still vulnerable to the parallel Session Attack
Manoj Kumar
In 2002, Chien–Jan–Tseng introduced an efficient remote user authentication scheme using smart cards. Further, in 2004, W. C. Ku and S. M. Chen proposed an efficient re…
An Improved Remote User Authentication Scheme Using Smart Cards
Manoj Kumar
In 2000, Hwang and Li proposed a new remote user authentication scheme using smart cards. In the same year, Chan and Cheng pointed out that Hwang and Li’s scheme is not secur…
Faults and Improvements of an Enhanced Remote User Authentication Scheme Using Smart Cards
Manoj Kumar
In 2000, Hwang and Li proposed a remote user authentication scheme using smart cards to solve the problems of Lamport scheme. Later, Chan- Chang, Shen- Lin- Hwang and then Chang-Hw…
A Cryptographic Study of Some Digital Signature Schemes
Manoj Kumar
In this thesis, we propose some directed signature schemes. In addition, we have discussed their applications in different situations. In this thesis, we would like to discuss the…
A Directed Threshold - Signature Scheme
Sunder Lal, Manoj Kumar
Directed signature is the solution of such problems when the signed message contains information sensitive to the signature receiver. Generally, in many application of directed sig…