Winternitz One-Time Signature

A quantum-resistant implementation of the Winternitz One-Time Signature (WOTS) scheme in Rust.

Usage

use winternitz::Winternitz;

fn main() {
    // Create a new Winternitz instance
    let winternitz = Winternitz::new(8);
    
    // Sign a message
    let message = b"Hello, quantum-safe world!";
    let signature = winternitz.sign(message);
    
    // Verify the signature
    let is_valid = winternitz.verify(message, &signature);
    assert!(is_valid);
}

API

• Winternitz::new(w: u8) - Create new instance
• sign(&self, message: &[u8]) - Sign a message
• verify(&self, message: &[u8], signature: &[Vec<u8>]) - Verify signature
• get_public_key(&self) - Get public key for distribution

Parameter Selection

w	Signature Size	Speed	Use Case
4	Large	Fast	High-frequency signing
8	Medium	Balanced	General purpose
16	Small	Slow	Space-constrained

Testing

cargo test
cargo run --example basic_usage

License

MIT License - see LICENSE file.