Chapters authored
Innovative Multilingual CAPTCHA Based on Handwritten Characteristics
Completely Automated Public Turing Test to Tell Computers and Humans Apart (CAPTCHA) is a kind of test which is commonly used by different websites on the Internet to differentiate between humans and automated bots. Most websites require users to pass the CAPTCHA before signing up or filling out most forms. CAPTCHA today is even used on some mobile applications to provide a higher security level that can protect websites and mobile applications against malicious attacks by automated bots and spammers. The technique essentially relies on employing the human recognition ability, which is not available in automated bots or machines, through leveraging the handwriting characteristics in designing CAPTCHA. The novelty of the technique proposed in this work is that it adopts handwritten characters of four different languages (English, Arabic, Spanish, and French) to generate handwritten multilingual CAPTCHA text. The technique was duly tested and the initial experiments’ results for the technique have shown a promising security level that each of the techniques would provide.
Part of the book: Multilingualism and Bilingualism