Hi, my name is Philippe and I currently work at Google in the Transparency team, where I am the Tech Lead for Certificate Transparency.
I develop, maintain and run open source software to run production-grade transparency logs, such as Tessera and its predecessor, Trillian.
Over the last few months, I've been focusing on TesseraCT: a multi-platform Certificate Transparency log implementing c2sp.static-ct-api.
- Nov 2023, ChromeOS Transparent secret offloading, CATS @ACM CCS
- Jul 2024, Certificate Transparency in 2024: how to make HTTPS certificates discoverable, Pass the SALT: slides, video
- Oct 2024, Scaling transparency ecosystems: lessons learned from CT, Transparency.dev summit: slides, video
- Jul 2025, Building Efficient Verifiable Logs: Introducing Trillian Tessera and TesseraCT, Pass the SALT: slides, video


