#memory #protection #tampering

nightly protected_integer

A simple crate, that protects some variables from being modified by memory tampering tools

2 releases

0.1.1 Apr 14, 2022
0.1.0 Apr 14, 2022

#15 in #protection

MIT license

8KB
98 lines

Crate: protected_integer

A simple crate, that protects some variables from being modified by memory tampering tools.

Usage

  1. Add this crate to dependencies in Cargo.toml

    [dependencies]
    protected_integer = "0.1"
    
  2. Use this crate in your project

    use protected_integer::{ProtectedInteger, State};
    
    let mut my_number = ProtectedInteger::new(114514); // initialize this variable
    
    // Check and get the value
    match my_number.get() {
        State::Untampered(num) => {
            println!("The variable has not been tampered with");
        }
        State::Tampered(num) => {
            println!("The variable was tampered with, but the backup variable was not");
            println!("The restored value is {}", num);
        }
    }
    
    // change the value
    my_number.set(1919810);
    

Performance

According to benchmark result, this crate is almost zero-cost

Detailed result:

running 3 tests
test tests::basic_mutations ... ignored
test tests::bench_getting ... bench:           0 ns/iter (+/- 0)
test tests::bench_setting ... bench:           4 ns/iter (+/- 0)

Hacking test

You can clone this repo and execute cargo run --example hacking_test

Now trying to hack the process with Cheat Engine

Dependencies

~775KB
~14K SLoC