Web based security analysis of OPASS authentication schemes using mobile application

Graphical password, text password are authentication of users on websites because of its simplicity and easy. User´s passwords are easy to hack by using different malicious programs and threats. First, Users select easy to remember password because nowadays they using many accounts on different websites. To login to websites they need to remember all passwords. So users would choose easy to remember passwords, but these passwords are not safe. Reusing passwords across different websites may cause users to lose their information which is stored in websites once the password hacked or compromised by attacker. Second, hackers can install malicious software to get the passwords, when user typing their username and password into unknown public computers. In this paper, developing web based security analysis of one Time password authentication schemes using mobile application. A user authentication protocol which involves user´s cell phone and short message service to prevent password stealing and reuse attacks. User´s only need to remember a long term password for login on different websites.