Ludovic Rousseau
Debian Developer
France
Summary
🤩
Rockstar🎓
Top SchoolLudovic Rousseau is a seasoned Debian Developer and smart card security expert with over 24 years of experience in security analysis, embedded systems, and backend software development. He holds an engineer's degree in operating systems and networks and a PhD focused on security of distributed systems, combining deep academic grounding with long-term open-source stewardship. His contributions span foundational projects like OpenSC, libusb and HIDAPI—improving PKCS#11 tooling, USB device handling, and robust resource management—and he has helped harden Pi-hole's backend scripts. Known for fixing subtle compiler warnings, build-system issues and improving developer documentation, he brings a meticulous, systems-level approach to maintainability and reliability. Based in France, Ludovic blends low-level C expertise with DevOps sensibilities and a knack for anticipating edge cases in security-sensitive code.
24 years of coding experience
Doctor of Philosophy (Ph.D.), Security of distibuted systems, Doctor of Philosophy (Ph.D.), Security of distibuted systems at Conservatoire National des Arts et Métiers / CNAMEngineer's degree, Operating systems and networks, Engineer's degree, Operating systems and networks at ENSIIE
French, English
Stackoverflow
114reputation
9kreached
8answers
1question
Github Skills (39)
multiplatform10
scripting10
linux10
build-system10
usb10
cross-platform10
hidapi10
c1110
regex10
security10
c1710
smartcard10
script10
sh10
shell10
Programming languages (26)
Github contributions (5)
OpenSC/OpenSC
Jun 2011 - May 2021
Open source smart card tools and middleware. PKCS#11/MiniDriver/Tokend
Role in this project:
Backend Developer
Backend DeveloperContributions:3 releases, 1 review, 95 commits in 10 years
Contributions summary:Ludovic primarily contributed to the OpenSC project by fixing compiler warnings and merging upstream changes. Their commits involved modifying code in several C source files, including `pkcs15-lib.c`, `apdu.c`, `card-muscle.c`, `card-rutoken.c`, `card-authentic.c`, `iso7816.c`, and `card-belpic.c`. These changes appear to be related to smart card tools and middleware, the project's core functionality.
pkcs11golangsmartcardsecuritytokend
libusb/libusb
Feb 2021 - Jun 2022
A cross-platform library to access USB devices
Role in this project:Backend & Embedded Systems Engineer
Backend & Embedded Systems EngineerContributions:4 reviews, 6 commits, 31 PRs in 1 year 3 months
Contributions summary:Ludovic's contributions primarily involve bug fixes and code improvements within the `libusb/libusb` repository, a cross-platform library for accessing USB devices. They addressed issues related to handling specific transfer statuses, and also fixed compiler warnings. The user made changes across several files, including `sync.c`, `libusbi.h`, `os/linux_usbfs.c`, and sample files. This indicates work on the core library as well as adaptations to specific operating systems and example usage, with a focus on improving code stability.
libusbwindowsusblinuxusb-devices
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