Survey Paper on Genetically Optimized Face Image CAPTCHA
Journal: International Journal of Science and Research (IJSR) (Vol.3, No. 11)Publication Date: 2014-11-05
Authors : Juhi Shah; D. N. Rewadkar;
Page : 3002-3005
Keywords : Mobile security; web security; CAPTCHA; face detection;
Abstract
The increasing use of smartphones, tablets, and other mobile devices poses a signi_cant challenge in providing effective online security. CAPTCHAs, tests for distinguishing human and computer users, have traditionally been popular; however, they face particular dif_culties in a modern mobile environment because most of them rely on keyboard input and have language dependencies. This paper proposes a novel image-based CAPTCHA that combines the touch-based input methods favored by mobile devices with genetically optimized face detection tests to provide a solution that is simple for humans to solve, ready for worldwide use, and provides a high level of security by being resilient to automated computer attacks. In extensive testing involving over 2600 users and 40 000 CAPTCHA tests, CAPTCHA demonstrates a very high human success rate while ensuring a 0 % attack rate using three well-known face detection algorithms.
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