A REVIEW - CAPTCHA AS GRAPHICAL PASSWORDS—A NEW SECURITY PRIMITIVE BASED ON HARD AI PROBLEMS

Most of the safety primeval square measure supported mathematical issues. This analysis goals to check existing parole and to style a brand new improved graphical parole pattern. Captcha as a graphical parole. during this paper, we tend to discuss a brand new security primeval supported exhausting computer science issues, a innovative of graphical parole systems created on dominant of Captcha technology, what we are saying Captcha as graphical passwords (CaRP). CaRP is each a Captcha and a graphical parole pattern. With the mix of CAPTCHA and graphical parole  addresses a like on-line estimation attacks, relay attacks, combination of with dual-view technology, and shoulder-surfing attacks. If the parole is in search nominative then CaRP parole are often found solely risk by automatic on-line estimation attack.