Eloi Sanfelix
Security Researcher at Blue Frost Security GmbH
The Hague, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolEloi Sanfelix is a security researcher with 15 years of experience focused on reverse engineering, vulnerability research, exploitation, and implementation attacks on cryptographic systems. Based in The Hague, he evaluates smart cards and embedded platforms with emphasis on side-channel analysis (DPA) and fault injection, and routinely applies reverse code engineering across architectures including x86/x64, ARM and SH4. He contributes to tooling as an internal user/developer of Riscure’s Inspector platform and has made notable open-source contributions to radare2, improving SH4 support, GDB integration and low-level debugging features. A regular CTF competitor with the int3pids team and an international trainer, he combines hands-on lab work with practical teaching to bridge research and real-world attack/mitigation techniques.
15 years of coding experience
Exchange student, Information Security, Exchange student, Information Security at Eindhoven University of TechnologyUniversitat Politècnica de València
English, Spanish, Catalan
Github Skills (12)
c1710
debugging10
debug10
radare210
gdb10
assembly10
reverse-engineering10
c1110
binarydiff10
assemble10
assembler10
command-line9
Programming languages (6)
Github contributions (5)
radareorg/radare2
Mar 2011 - May 2011
UNIX-like reverse engineering framework and command-line toolset
Role in this project:
Back-end Developer
Back-end DeveloperContributions:18 commits, 1 PR in 1 month
Contributions summary:Eloi made significant contributions to the reverse engineering framework, radare2, focusing on low-level code analysis and debugging. Their work included implementing and fixing support for specific CPU architectures like SH4 and enhancing the GDB debugging integration. They also improved the breakpoint functionality and added features for improved register handling, demonstrating a strong understanding of debugging and reverse engineering principles. The user also updated the code related to I/O operations.
unixbinary-analysissecurityradare2forensics
esanfelix/writeup
Dec 2015 - Aug 2017
Contributions:5 commits, 5 pushes, 1 branch in 1 year 8 months
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