Skip to content
View leofarias-x64's full-sized avatar
😛
😛
2 followers · 6 following

Block or report leofarias-x64

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
leofarias-x64/README.md

Hi there, I'm Leonardo 👋

About Me

I am a developer focused on low-level coding and cryptography.

Tech Stack & Skills

Architecture & Low-Level Development

  • C: Procedural systems programming, memory management, and register-level control.
  • C++: Modern C++ (Object-Oriented, templates), performance optimization, and hardware interaction.
  • Assembly: Position-independent code (PIC) and bare-metal execution flow.

Scripting, Automation & Prototyping

  • Python: Deep understanding of core language fundamentals, built-in data structures, and advanced logic without third-party frameworks. I currently use Python for rapid prototyping, test automation, and validation scripts.

Data Persistence & Databases

  • SQL (PostgreSQL): Solid foundational knowledge.

OS & Ecosystem

  • 🐧 Linux: Native development environment — I use Arch btw.
  • 🪟 Windows: Former target environment; experienced with Windows Internals, dynamic API resolution, manual PEB/EAT traversal, and low-level subsystem architecture.

Connect with me

Pinned Loading

  1. sanctum-diary sanctum-diary Public

    Local encrypted diary for Windows. Entries protected with a hand-rolled AVX-512 ChaCha20-Poly1305, scrypt key derivation, and Windows Hello session locking. All crypto primitives implemented from s…

    C++

  2. silent-sentinel silent-sentinel Public

    A research-oriented Windows telemetry agent focused on stealthy data acquisition and heuristic bypass. Implements a custom runtime environment with manual PEB/EAT traversal, ROR13 API hashing, and …

    C

  3. serpent-bitslicing-cpp serpent-bitslicing-cpp Public

    A modern C++20 implementation utilizing AVX-512 and Osvik's optimized Boolean circuits to achieve massive throughput through bitslicing.

    C++

  4. chacha20-poly1305-aead chacha20-poly1305-aead Public

    High-performance C++20 implementation of ChaCha20-Poly1305 AEAD. Features SIMD acceleration, multi-block Poly1305 reduction, and sub-3.0 CPB efficiency on modern x86_64 architectures.

    C++

  5. shellcode-windows-lab shellcode-windows-lab Public

    A collection of x64 Assembly snippets focused on Position-Independent Code (PIC) and Windows Internals. Manual PEB/EAT traversal and dynamic API resolution without external dependencies

    C