🦀 rustfuscator

Note:
The publication on crates.io will be restored soon.
It was temporarily taken down due to some conflicts, but it will be resolved and republished shortly.
In the meantime, you can install it directly from the GitHub repository by following the instructions below.

Obfuscation-first CLI and library for Rust.
Protect your source code from reverse engineering by encrypting string literals, injecting opaque control-flow, and rewriting AST logic — with full automation CLI, macros or a derive.

Features

• Full CLI: obfuscate files, folders, or full Cargo projects
• Configurable via .obfuscate.toml
• Output formatting (--format)
• No runtime dependency or unpacking
• Obfuscate string literals at compile-time (obfuscate_string!)
• Insert control-flow breaking statements (obfuscate_flow!)
• Derive macro for struct encryption (#[derive(Obfuscate)])

Installation

Once published:

cargo install rustfuscator

Or clone and build:

git clone https://github.com/GianIac/rustfuscator

cd rustfuscator

cargo install --path obfuscator_cli

Command-Line Interface

The CLI is the most powerful part of rustfuscator. You can obfuscate anything from a single file to a full Rust project.

Obfuscate a single file

rustfuscator --input ./src/main.rs --output ./obf

Obfuscate a full source folder

rustfuscator --input ./src --output ./obf_src

Obfuscate an entire Cargo project

rustfuscator \ --input ./my_project \ --output ./my_project_obf \ --as-project \ --format

Automatically:

• Copies your project structure
• Patches Cargo.toml
• Applies macro-based obfuscation
• Optionally formats the output

Configuration with .obfuscate.toml

Generate a default config:

rustfuscator --input ./my_project --init

Example file:

Library Usage

Add to your Cargo.toml:

[dependencies] --> rust_code_obfuscator = "0.2.1"

Use it:

Derive Struct Encryption

Project Layout

Disclaimer

Obfuscation does not guarantee complete protection. It significantly increases the complexity of reverse engineering, but should be combined with:

• Binary stripping
• Anti-debugging
• Compiler flags
• Other hardening strategies

License

MIT License © 2025 Gianfranco Iaculo