Propose an Arabic CAPTCHA System based on Chaotic Maps
Propose an Arabic CAPTCHA System based on Chaotic Maps

Mariam T. Sulaiman; Nidaa F. Hassan

Volume 36, 1B , January 2018, , Page 48-52

https://doi.org/10.30684/etj.36.1B.8

Abstract
  CAPTCHA is the facility that prevents web bots from accessingthe web services by generating tests to check whether the user is human orcomputer program. In this paper, a new pseudo-random ...  Read More ...
Generate Animated CAPTCHA Based on Visual Cryptography Concept
Generate Animated CAPTCHA Based on Visual Cryptography Concept

Akbas E. Ali; Nidaa F. Hassan; Matheel Emad EL-Deen Abdulmunim

Volume 29, Issue 16 , December 2011, , Page 3405-3416

https://doi.org/10.30684/etj.29.16.12

Abstract
  CAPTCHA is a standard security technology. To date, the most commonly used are various types of visual CAPTCHAs, in which a challenge often appears as an image of distorted text that ...  Read More ...