Captcha and Graphical Password Schema in Online Guessing Attacks, relay attacks if com bined with dual view technologiDDes
Journal Title: International Journal of Scientific Research and Management - Year 2016, Vol 4, Issue 5
Abstract
An AI problem for security is emerging as an exciting new paradigm, but has been underexplored. In this paper, we introduce a new security primitive based on hard AI problems, namely, a novel family of graphical password systems integrating Captcha technology, which we call CaRP (Captcha as gRaphical Passwords) . CaRP is click - based graphical passwords, where a sequenc e of clicks on an image is used to derive a password. Unlike other click - based graphical passwords, images used in CaRP are Captcha challenges, and a new CaRP image is generated for every login attempt. The notion of CaRP is simple but generic. CaRP can ha ve multiple instantiations. In theory, any Captcha scheme relying on multiple - object classification can be converted to a CaRP scheme. We present exemplary CaRPs built on both text Captcha and image - recognition Captcha. One of them is a text CaRP wherein a is password a sequence of characters like a text password, but entered by clicking the right character sequence on CaRP images. We present a new security primitive based on hard AI problems, namely, a novel family of graphical password systems built on to p of Captcha technology, which we call Captcha as graphical p asswords (CaRP) . CaRP is both a Captcha and a graphical password scheme. CaRP addresses a number of security problems altogether, such as online guessing attacks, relay attacks, and, if combined with dual - view technologiDDes, shoulder - surfing attacks. Notably, a CaRP password can be found only probabilistically by automatic online guessing attacks even if the password is in the search set.
Authors and Affiliations
Ms. V. Surekha
Keywords
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- EP ID EP218174
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