A COUNTERMEASURE FOR SECURITY INTENSIFICATION IN CLOUD USING CaPGP

The malware attacks attempt to deplete the cloud services with bogus request which is a major threat in cloud. A mechanism to intensify the login security in cloud is suggested. The concept of CaPGP – CAPTCHA as Puzzle and Graphical Password is introduced because CAPTCHA is one way to discriminate human and malware apart. The computations at the client side are made intensive than on the server side by making the malwares fail to resolve and attempt to attack. The client is made to resolve the software puzzle that is generated randomly with time constraints where the malware is defeated. The password is made stronger so as to counter the guessing attacks and cookies during login. CAPTACHA’s nowadays are cracked easily by Optical Character Reader (OCR) which proves the technological advancement. Hence image based CAPTCHA which requires the verification task to be complete after the mouse click where OCR also fails. Moreover the proposed system shows how to implement the software puzzle in generic server-browser model.