Password authentication with insecure communication

A password authentication scheme over insecure networks

Authentication ensures that system’s resources are not obtained fraudulently by illegal users. Password authentication is one of the simplest and the most convenient authentication mechanisms over insecure networks. The problem of password authentication in an insecure networks is present in many application areas. Since computing resources have grown tremendously, password authentication is mo...

An Improved Efficient Remote Password Authentication Scheme with Smart Card over Insecure Networks

In 2006, Liao et al. proposed a scheme over insecure networks. In 2006, Yoon-Yoo, and in 2008, Xiang et al. analyzed Liao et al.’s scheme and both of them pointed out, more or less, same vulnerabilities: like offline password guessing attack, impersonating the server by replay attack, denial of service attack on password changing and insider attack on it. But none of them suggested any solution...

The Password Change Phase is Still Insecure

In 2004, W. C. Ku and S. M. Chen proposed an efficient remote user authentication scheme using smart cards to solve the security problems of Chien et al.’s scheme. Recently, Hsu and Yoon et al. pointed out the security weaknesses of the Ku and Chen’s scheme Furthermore, Yoon et al. also proposed a new efficient remote user authentication scheme using smart cards. Yoon et al. also modified the p...

Enhanced Password Authentication the Dynamic Password Unrevealed

Advanced Password Encryption Technology Based On The New Concept Of Dynamic Passwords For Users Based On Their Current Location/Time/Parameters. The Basic Password Remains Intact & Users Enter Few 2-3 Additional Information Characters In Addition To Basic Password Which Are Dynamic & Provided At Run Time.

Strengthening Password-based Authentication