ISSN (Online) : 2456 - 0774

Email : ijasret@gmail.com

ISSN (Online) 2456 - 0774

REVIEW PAPER ON DEEP LEARNING TECHNIQUES FOR SECURING WEB SERVICES BY USING TEXT,IMAGE & PATTERN BASED CAPTCHAS


Abstract

Abstract- Recentresearch on recommendation has shifted from explicit ratings to implicit feedback,such as A CAPTCHA is a program or CAPTCHA stands for Completely AutomatedPublic Turing Test To Tell Computers and Humans Apart, Created by CarnegieMellon University .There are different type of CAPTCHA .User type the lettersof a distorted image in Mostly useful CAPTCHA, somewhere sum of sequence of lettersor letters digits which looks on the screen. The reason is that the test isdelivered by a computer, in difference to the streamer Turing test that ishandled by a person ,a CAPTCHA is occasionally express as a set aside Turingtest. Today most of the websites utilize captcha generated towards secure theirsite from scrappers, online polls, dictionary attacks and search engine bots,for enhanced pledge usability and security both are to be egalitarianism. Herethe text CAPTCHA is scrutinized in minuscule and the need for image CAPTCHA isput abroad .Increase characteristic of the image CAPTCHA are integrated and anew CAPTHA with enhanced capability is advanced. We Use Deep Learning Techniquefor securing Web Services by Using Text, Image & Pattern Based Captcha.

Keywords: CompletelyAutomated Public Turing Test To Tell Computers and Humans Apart (CAPTHA),Optical Character Recognition (OCR), Global Unique Identifier (GUID), StateInformation Database (SID).


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