Compiletime string literal obfuscation.
Compiletime string constant obfuscation for Rust.
The string constant itself is embedded in obfuscated form and deobfuscated locally. This reference to a temporary value must be used in the same statement it was generated. See the documentation for more advanced use cases.
Looking for obfuscating formatting strings? See fmtools (github, crates.io, docs.rs) with the optional dependency obfstr enabled to automatically apply string obfuscation to formatting strings.
The obfstr! macro returns the deobfuscated string as a temporary value:
use obfstr::obfstr as s;
assert_eq!(s!("Hello "), "Hello ");The wide! macro provides compiletime utf16 string constants:
let expected = &['W' as u16, 'i' as u16, 'd' as u16, 'e' as u16, 0];
assert_eq!(obfstr::wide!("Wide\0"), expected);The random! macro provides compiletime random values:
const RND: i32 = obfstr::random!(u8) as i32;
assert!(RND >= 0 && RND <= 255);Compiletime random values are based on file!(), line!(), column!() and a fixed seed to ensure reproducibility.
This fixed seed is stored as text in the environment variable OBFSTR_SEED and can be changed as desired.
Licensed under MIT License, see license.txt.
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