Innovative Multi-Modal Captcha System with Blink Detection and OTP Verification for Enhanced Security and User Experience
Benedict J. N, Sriprasath Sathiyamoorthy, Suriya Sundaram K S · 2025
In response to the growing need for robust security measures and improved user experience in online authentication systems, we propose an innovative Multi-Modal CAPTCHA System incorporating blink detection and OTP (One-Time Password) verification. This system enhances security by leveraging biometric and behavioral cues, combined with traditional OTP methods, to provide a more reliable and user-friendly verification process. The system utilizes blink detection technology to confirm user presence and attention, reducing the risk of automated attacks while ensuring that CAPTCHA challenges are completed by genuine users. Simultaneously, OTP verification offers an additional layer of security by requiring a time-sensitive code sent to the user's registered device. This dual-layer approach mitigates vulnerabilities associated with traditional CAPTCHAs and enhances overall system resilience. Our solution promises to improve both security and accessibility, catering to a diverse user base with varying needs and capabilities.