Science & Engineering Research Support soCiety (SERSC)
To keep the pace with the development of internet technology, remote user authentication techniques become more and more important to protect user's privacy. Recently, the researcher presented an improved remote user authentication scheme with key agreement based on dynamic-identity using smart card. This scheme allows legal users to change the password at their will without the need to connect the server. They claimed that their scheme could resist smart card stolen or loss attack, user impersonation and server masquerading attack, and provide user anonymity and untraceability and so on.