A Survey on Login Authentication System Using Captcha as Graphical Passwords Techniques

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Provided by: The International Journal of Innovative Research in Computer and Communication Engineering
Topic: Security
Format: PDF
Now-a-days, vulnerability is a major issue in computer security. Computer and Information security is supported by passwords. The password is used in authentication process. The traditional authentication method uses text-based password which is also called alphanumeric password, but it has some drawbacks, so graphical password scheme is developed to overcome vulnerabilities of this traditional password scheme. The graphical is easier to remember and difficult to guess than text. But major drawback of graphical scheme is it is vulnerable to shoulder surfing attack and also sometimes to spyware attack.
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