Recently, Yang and Shieh proposed two password authentication schemes by employing smart cards. One is a timestamp-based password authentication scheme and the other is a nonce-ba...
The mifare Classic is a contactless smart card that is used extensively in access control for office buildings, payment systems for public transport, and other applications. We rev...
Flavio D. Garcia, Gerhard de Koning Gans, Ruben Mu...
In 2005, Lee, Kim, and Yoo proposed a nonce-based mutual authentication scheme using smart cards. However, this paper demonstrates that Lee-Kim-Yoo's scheme is vulnerable to ...
Abstract. Recently, there are several articles proposed based on Yang and Shieh’s password authentication schemes (YS for short) with the following features: (1) A user can choos...
Most of existing user authentication schemes require high computation cost of exponentiation operations for the purpose of security. However, it is not suitable for mobile devices...