Rust-Obfuscator

Name: rust-obfuscator
Rating: 5 (326 reviews)
Author: dronavallipranav

rust-obfuscator is a set of tools designed to automatically obfuscate Rust source code by inserting procedural macros or by (optionally) providing the obfuscation in the source code directly. For more fine-grained obfuscation a procedural macro library cryptify is also provided.

Currently Supported

string literal encryption
control-flow obfuscation
control-flow obfuscation (source code)
variable renaming (source code)

Features

String Encryption: Automatically encrypts string literals assigned to local variables at compile time.
Can also be used for formatted strings, but currently requires manual placement

        println!("{}", cryptify::encrypt_string!("hello!"));
    ``
Control Flow Obfuscation: Introduces compile-dummy dummy loops and random variables.  
Customizable Obfuscation: Offers flexibility to enable or disable specific obfuscation features based on your requirements.  
Variable Renaming: Obfuscation of the source code directly, if you'd like to ship the code or just want to make your code look worse.  
NOTE: var renaming not fully functional as of 1.1.1 working on full-support as some cases aren't covered yet. Can still use the tool and fix the appropiate compiler errors.  
Installation  
Add cryptify to your Cargo.toml as a dependency:

toml
[dependencies]
cryptify = "3.2.1"
To install rust-obfuscator, clone the repository and build the tool using Cargo from the root:

cargo build --release --bin rust-obfuscator
The binary can then be found under /target/release, you can copy it to the root of the project like such
cp ./target/release/rust-obfuscator .

Usage
Set the CRYPTIFY_KEY environment variable for custom encryption, otherwise it defaults to the defined fixed key
Add to the source code you'd like to modifyrs
use cryptify;
The binary can be used on either a file or a directory. If provided with a directory it will only modify Rust source files within that directory, not any subdirectories.sh
./rust-obfuscator path/to/your_project 
- All Obfuscated code will be under the obfuscated_code directory that is created from the directory the tool was run.
Recommended to use a Rust Formatter with the obfuscated code as syn naturally modifies the structure and it will be written to the file as one line
Option Flags
--no_string: Disables string obfuscation.
--no_flow: Disables control flow obfuscation.
--disable_macro: Uses direct source manipulation for flow obfuscation instead of procedural macros.
--var: Enables variable renaming source code obfuscation.
Example usage with flagsh
rust-obfuscator path/to/your_project --no_flow 
(disables flow obfuscation)
Input
-running the tool with no configrs
use cryptify;
mod word_counter;
use std::env;
use std::fs;
use word_counter::count_words;
fn main() {
    let b = "Hello World";
    println!("{}", b);
    let args: Vec = env::args().collect();
    if args.len() < 2 {
        eprintln!("Usage: {} ", args[0]);
        return;
    }
    let filename = &args[1];
    let content = fs::read_to_string(filename).expect("Could not read file");
    let word_counts = count_words(&content);
    for (word, count) in word_counts.iter() {
        println!("{}: {}", word, count);
    }
}
fn dummy() {
    let a = 1;
    let b = 2;
    let c = a + b;
    println!("{}", c);
}
fn calc_sum(a: i32, b: i32) -> i32 {
    cryptify::flow_stmt!();
    let c = a + b;
    c
}
fn helloooo(){
    println!("hi");
}
# Outputrs
fn main() {
    cryptify::flow_stmt!();
    let b = cryptify::encrypt_string!("Hello World");
    println!("{}", b);
    let args: Vec = env::args().collect();
    if args.len() < 2 {
        eprintln!("Usage: {} ", args[0]);
        return;
    }
    let filename = &args[1];
    let content = fs::read_to_string(filename).expect("Could not read file");
    let word_counts = count_words(&content);
    for (word, count) in word_counts.iter() {
        println!("{}: {}", word, count);
    }
}
fn dummy() {
    cryptify::flow_stmt!();
    let a = 1;
    let b = 2;
    let c = a + b;
    println!("{}", c);
}
fn calc_sum(a: i32, b: i32) -> i32 {
    cryptify::flow_stmt!();
    let c = a + b;
    c
}
fn helloooo() {
    println!("hi");
}
## Expanded Outputrs
fn main() {
    {
        let _is_dummy_145 = true;
        let mut _dummy_counter = std::hint::black_box(4i32 as i32);
        let _dummy_increment = std::hint::black_box(1i32 as i32);
        let _dummy_upper_bound = std::hint::black_box(53i32 as i32);
        loop {
            if std::hint::black_box(_dummy_counter)
                > std::hint::black_box(_dummy_upper_bound)
            {
                break;
            }
            _dummy_counter = std::hint::black_box(
                std::hint::black_box(_dummy_counter)
                    + std::hint::black_box(_dummy_increment),
            );
        }
    };
    match (&1, &1) {
        (left_val, right_val) => {
            if !(left_val == right_val) {
                let kind = ::core::panicking::AssertKind::Eq;
                ::core::panicking::assert_failed(
                    kind,
                    &*left_val,
                    &*right_val,
                    ::core::option::Option::None,
                );
            }
        }
    };
}
fn dummy() {
    {
        let _is_dummy_145 = true;
        let mut _dummy_counter = 4i32;
        let _dummy_upper_bound = 100;
        let _dummy_increment = 3i32;
        loop {
            if _dummy_counter > _dummy_upper_bound {
                break;
            }
            unsafe {
                std::ptr::write_volatile(
                    &mut _dummy_counter,
                    _dummy_counter + _dummy_increment,
                );
            }
        }
    };
    let a = 1;
    let b = 2;
    let c = a + b;
    {
        ::std::io::_print(format_args!("{0}\n", c));
    };
}
fn calc_sum(a: i32, b: i32) -> i32 {
    {
        let _is_dummy_145 = true;
        let mut _dummy_counter = 8i32;
        let _dummy_increment = 3i32;
        let _extra_dummy_var = 4i32;
        let _dummy_upper_bound = 100;
        loop {
            if _dummy_counter > _dummy_upper_bound {
                break;
            }
            unsafe {
                std::ptr::write_volatile(
                    &mut _dummy_counter,
                    _dummy_counter + _dummy_increment,
                );
            }
        }
    };
    let c = a + b;
    c
}
fn helloooo() {
    {
        ::std::io::_print(format_args!("hi\n"));
    };
}

License

rust-obfuscator is licensed under the MIT License - see the LICENSE file for details.

--- Tranlated By Open Ai Tx | Last indexed: 2026-03-17 ---