Become a sponsor to Ryuji Yasukochi
Hi, I'm Ryuji 👋
I'm a security researcher and OSS developer based in Japan, working at the intersection of cryptography, privacy infrastructure, and document systems.
What I'm building
🔐 hyde — Hardware-bound key management combining TPM 2.0 + ML-KEM-768 (post-quantum). Published on crates.io under MIT.
📄 oxi — Rust/WASM Office document rendering engine targeting pixel-perfect OOXML compatibility. MIT licensed. The goal: documents belong to their communities, not vendor ecosystems.
🛡️ Security research — Published CVEs include:
- CVE-2026-33524 / CVE-2026-33666 (zserio, CVSS 7.5, affecting 43 automotive OEMs)
- ROS2 heap buffer overflow disclosure
- 7-finding audit of Japan Digital Agency OSS
Why sponsor?
Your sponsorship directly funds:
- Continued OSS development (hyde, oxi, and the broader ecosystem)
- Security research and responsible disclosure
- Independence from vendor lock-in and surveillance economics
I believe in standing on mathematics and hardware, and exiting the AI arms race.
Connect
- 🐙 GitHub: @Ryujiyasu
- 📦 crates.io: hyde
Reaching 10 sponsors will validate that the security research and OSS work I do—hyde (post-quantum cryptography), oxi (open Office rendering), and CVE disclosures—matters to the community. Every sponsor, regardless of tier, counts equally toward this goal.
Featured work
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Python 5