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Generate Animated CAPTCHA Based on Visual Cryptography Concept | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 29, Issue 16, 2011, Pages 3405-3416 PDF (491.64 K) | ||
| DOI: 10.30684/etj.29.16.12 | ||
| Authors | ||
| Akbas E. Ali; Nidaa F. Hassan; Matheel Emad EL-Deen Abdulmunim | ||
| 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 the user must decipher. The proposed scheme is used visual cryptography encryption protocol to encrypt CAPTCHA image in perfectly secure way, such that only the human visual system can easily decrypt the CAPTCHA image with animated arrangement. Numbers of blurring image process are implemented on the CAPTCHA images, to make this test difficult for current computer systems. The new animated CAPTCHA is more secure than the current versions and easier for humans to pass. | ||
| Keywords | ||
| CAPTCHA; Visual Cryptography; Blurring Process | ||
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