Audio-based CAPTCHA Verification to Secure Web Applications

With the progression of internet era, the number of web robots checking on any web application is increasing exponentially. Manifold malfunction activities have been used by adversaries to breach the security of web applications. Therefore, securing a web application has become a prime aspect to protect any application from spammers. The technology of CAPTCHA emerged as a common security measure that can easily detect any bot spammer by differentiating them from common users. In literature, various CAPTCHA verification techniques have been proposed and adopted to ensure the security of web applications like text-based, image-based, audio-based verification etc. This research work presents an effective audio-based CAPTCHA verification technique which basically involves two steps security process. Thus, enhances security aspects compared to the other CAPTCHA techniques.