I'm Ritvik Kumar Rai. I work across post-quantum cryptography, embedded systems, and applied AI—turning difficult technical problems into useful, resilient products.
Explore01 / SELECTED WORK
Current focus
Post-quantum signature generation and verification for Armv8 NEON, with reproducible benchmarks across Apple M1 and Cortex-A72 targets.
A privacy-first Android app that monitors speech locally for scam patterns and warns people in real time—built with Clean Architecture and Jetpack Compose.
A real-time voice assistant that can navigate IVR menus, hold natural conversations, and turn calls into structured summaries and transcripts.
A browser extension that surfaces lawsuits, greenwashing, and supply-chain concerns while people shop, with citations for deeper verification.
Kernel-facing systems work exploring cross-platform device-driver architecture, hardware abstraction, compatibility, and performance.
An open-source toolkit for creating video, audio, and graphics from natural-language prompts using practical tools such as FFmpeg and ImageMagick.
02 / ABOUT
RITVIK / 2026
I’m a cybersecurity engineer at Elektrobit, interested in the places where security, hardware, and emerging technology meet.
My work ranges from optimizing NIST-standardized post-quantum algorithms and exploring automotive crypto integration to building Linux drivers, privacy-minded mobile apps, and AI agents.
I learn by building. The result is a body of work that moves between low-level performance and human-facing products—but stays anchored in making technology more trustworthy and useful.
03 / CONNECT
Have an interesting systems, security, or AI problem?
Find me on GitHub