Description

A smart-card-based password authentication scheme involves a server and a user. The password-based authentication schemes with smart cards are the important parts of security for accessing remote servers. In here three phase , Registration phase, Login phase, password-changing phase In Registration phase, user enter their personal information. If it valid information means then server produced one unique userid for user. In Login phase, login with valid userid and the password. If suppose the userid not match cant able to login and user login more times it will go for authentication process. In Password Changing phase, we can change password with some security measure. When change the password that time Attacker trying to retrieve the password and the userid. But they can’t able to retrieve because we using the hash techniques.