Web Based Security using oPass System: A Survey

Password authentication is an essential form of user authentication both on the Internet and for internal organizational computing systems. Password protection schemes are used to protect relatively low-sensitivity systems such as access to online archives as well as highly sensitive corporate intranets or personal bank accounts. Text password is the most popular form of user authentication on websites due to its convenience and simplicity. However, users’ passwords are prone to be stolen and compromised under different threats and vulnerabilities. Users often select weak passwords and reuse the same passwords across different websites. Routinely reusing passwords causes a domino effect; when an adversary compromises one password, she will exploit it to gain access to more websites.