An Efficient Password Authentication Method Using CAPTCHA

摘要

User authentication is one of the most important security requirements for online financial transactions services to support users on the web. These securityservices should posses features, such as secure tunneling connection, and sniping attackprevention, keylog attack prevention etc. Malicious attackers maycapture user information such as users entered authentication information (ID, Password, card number, bank account number, etc)through keyboard hooking.This paper proposesa keyboard hooking protected password input method using CAPTCHA. The proposed password input method is based on entering the password using mouse click or touch pad on the CAPTCHA image. The mapping of CAPTCHA image pixels is random.