about me

I'm Erick Cestari, a security researcher and Bitcoin open-source developer based in Brazil.

Currently funded by Vinteum to work on Bitcoin security.

work

I'm one of the maintainers of Bitcoinfuzz, a differential fuzzing framework designed to find bugs and vulnerabilities in Bitcoin libraries.

I hunt for vulnerabilities in Bitcoin and Lightning Network implementations.

I've made several responsible disclosures to improve the security of the Bitcoin ecosystem.

Fuzzing, reverse engineering, cryptography, and open-source software.

Bitcoin protocol development and Lightning Network.

This portfolio is served by a custom HTTP server implemented in Rust, with hand-written request handling.