1. | Generate Animated CAPTCHA Based on Visual Cryptography Concept | |
Volume 29, Issue 16, December 2011, Pages 3405-3416 | ||
Akbas E. Ali; Nidaa F. Hassan; Matheel Emad EL-Deen Abdulmunim | ||
2. | Propose an Arabic CAPTCHA System based on Chaotic Maps | |
Volume 36, 1B, January 2018, Pages 48-52 | ||
Mariam T. Sulaiman; Nidaa F. Hassan | ||