examples/password-hasher.rs


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use std::io::Write;

use argon2::{
    password_hash::{rand_core::OsRng, PasswordHash, PasswordHasher, PasswordVerifier, SaltString},
    Argon2,
};

fn main() -> std::io::Result<()> {
    eprint!("Type a password: ");
    std::io::stderr().flush().unwrap();
    let password = {
        let mut s = String::new();
        std::io::stdin().read_line(&mut s)?;

        s
    };

    let salt = SaltString::generate(&mut OsRng);
    let argon2 = Argon2::default();
    //eprintln!("{}", password.trim());
    let password_hash = argon2
        .hash_password(password.trim().as_bytes(), &salt)
        .expect("Hashing a password should not error out")
        .serialize();

    println!("{}", password_hash.as_str());

    assert!(Argon2::default()
        .verify_password(
            password.trim().as_bytes(),
            &PasswordHash::new(password_hash.as_str()).expect("Password hash should be valid")
        )
        .is_ok());

    Ok(())
}