Date Added: Aug 2012
The design of secure remote user authentication schemes for mobile applications is still an open and quite challenging problem, though many schemes have been published lately. Recently, Islam and Biswas pointed out that Lin and Hwang et al.'s password-based authentication scheme is vulnerable to various attacks, and then presented an improved scheme based on Elliptic Curve Cryptography (ECC) to overcome the drawbacks. Based on heuristic security analysis, Islam and Biswas claimed that their scheme is secure and can withstand all related attacks.