Information Systems student @ UFSC · low-level networking & applied cryptography in C++

I'm an Information Systems undergrad at UFSC with a focus on applied cryptography and network programming in C++ — the kind of work that sits underneath PKI systems: TLS, X.509 certificates, and the protocols that move them around.

I'm currently studying CAs and RAs, with a growing interest in digital signatures and applied cryptography. My goal is to build trustworthy systems on top of digital certificates. I like digging into things by reading RFCs and documentation instead of stopping at a tutorial — working close to the metal: raw sockets, OpenSSL, and reading library source when the docs run out.

• Languages: C, C++, Python
• Areas: applied cryptography, PKI / X.509, network programming, systems security, low-level programming
• Tools: OpenSSL, libevent, LibCryptoSec, sockets/TCP, Linux

• sgc-challange My solution to LabSEC's own selection challenge (fork of LabSEC/DesafioLabsec), built with their LibCryptoSec library — the same OpenSSL wrapper used across the Ywapa/Ywyra/Hawa certificate management systems.

• xhttps An HTTPS implementation from scratch in C++ using libevent and OpenSSL, built for learning purposes. Covers the same territory as the web-service layer that connects Hawa's AC and AR environments.

• crypt Cryptopals exercises and other applied-cryptography experiments — working through the classic attacks and primitives by hand instead of just calling a library.

• tcp_tunnel A simple TCP tunnel/forwarder in C++, for practicing socket programming at a low level.

_{Interested in PKI, digital signatures, and the systems that make them trustworthy at scale.}