A Novel Security Approach using Captcha and Graphical Password-A Survey

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Provided by: Aurora's International Journal of Computing
Topic: Security
Format: PDF
Security is a main issue that is to be deal with. This paper introduces the concept of graphical based CAPTCHA to prevent unauthorized access of information. Now-a-days, most of the highly sensitive data is getting misused because of the text passwords. Text passwords are easy to guess through different attacks i.e. dictionary attack and brute force attack text passwords are highly insecure comparatively to graphical password. Therefore text as well as graphical passwords is required in order to prevent/avoid illegal access of information from the illegitimate users relay attacks.
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