cryptify

cryptify is a procedural macro crate for compile-time rust obfuscation. It provides the user with string encryption and compile-time determined flow obfuscation and random variables which survive compile-time optimization.

rust-obfuscator - Check out this auto obfuscator tool for easier usage and integration

Features

• String Obfuscation: Automatically encrypts string literals in your code at compile time, making them harder to read and understand.
• Flow Obfuscation: Introduces dummy loops and random variables into control flows, enhancing the overall obfuscation of the logic.

Usage

Bring macro into scope

use cryptify;

fn main(){
    let decrypted = cryptify::encrypt_string("Hello, World!");
    println!(decrypted);
    println!("{}", cryptify::encrypt_string!("formatted!"));
}

Set the CRYPTIFY_KEY environment variable for custom encryption otherwise it defaults to defined fixed key

Output

Hello World!
formatted!

Example of expanded Flow_Stmt!

    {
        let _is_dummy_145 = true;
        let _dummy_upper_bound = 100;
        let _dummy_increment = 1i32;
        let mut _dummy_counter = 10i32;
        let _extra_dummy_var = 2i32;
        loop {
            if _dummy_counter > _dummy_upper_bound {
                break;
            }
            unsafe {
                std::ptr::write_volatile(
                    &mut _dummy_counter,
                    _dummy_counter + _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,
                );
            }
        }
    };

License

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