Survey of Human Interactive Proof and CAPTCHA Techniques and Attacks

  Ashima Narula,  Swati Bhasin

Credit division and optical character (OCR) technologies with the development, skills gap and deformed humans and bots in acts between related information becomes increasingly smaller. This trend should eventually ineffective potentially drawing API Text CAPTCHAs. To arrange these obfuscations open test, how to interpret them graphically display the image that users have plenty of them superficial effort to prevent a resolution are not yet within reach to solve the employment of computer vision algorithms. To CAPTCHA challenge to make a hard question for us to understand who pass phrase set the challenge. And several plans have been implemented. A special design for user friendliness based on results of a survey conducted on human subjects was determined. The survey result shows that our design is preferred by users and automated using known methods helps to prevent attacks from spam bots. The letters CAPTCHA technology and human interactive proof and offers a survey of attacks.

Keywords- Keywords—CAPTCHA, Security, CAPTCHA attacks, OCR, Computer vision.

Unique Identification Number - IJEDR1603010
Page Number(s) - 53-57
Pubished in - Volume 4 | Issue 3 | July 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Ashima Narula,  Swati Bhasin,   " Survey of Human Interactive Proof and CAPTCHA Techniques and Attacks", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 3, pp.53-57, July 2016, Available at :http://www.ijedr.org/papers/IJEDR1603010.pdf