GoogleAuthenticator

Introduction

This Rust crate can be used to interact with the Google Authenticator mobile app for 2-factor-authentication.This Rust crates can generate secrets, generate codes, validate codes and present a QR-Code for scanning the secret.It implements TOTP according to RFC6238 More about Google GoogleAuthenticator see:Wiki

Usage

Add this to your Cargo.toml:

[dependencies]
google-authenticator = "0.1.5"

Examples

use google_authenticator::GoogleAuthenticator;

fn main() {
    let secret = "I3VFM3JKMNDJCDH5BMBEEQAW6KJ6NOE3";
    let auth = GoogleAuthenticator::new();
    // let secret = auth.create_secret(32);
    let code = auth.get_code(&secret, 0).unwrap();

    assert!(auth.verify_code(&secret, &code, 1, 0).unwrap());
}

Get the secret QR code

Get Google Charts Url to make QR Code

use google_authenticator::GoogleAuthenticator;

fn main() {
    let auth = GoogleAuthenticator::new();
    let secret = "I3VFM3JKMNDJCDH5BMBEEQAW6KJ6NOE3";
    println!(
        "{}",
        auth.qr_code_url(secret, "qr_code", "name", 200, 200, 'H')
    );
}

Get QR code image in svg format

Change Cargo.toml to

[dependencies.google-authenticator]
version = "0.1.5"
default-features = false
features = ["with-qrcode"]

use google_authenticator::GoogleAuthenticator;

fn main() {
    let secret = "I3VFM3JKMNDJCDH5BMBEEQAW6KJ6NOE3";
    let auth = GoogleAuthenticator::new();

    println!(
        "{}",
        auth.qr_code(secret, "qr_code", "name", 200, 200, 'H')
            .unwrap()
    );
}

FAQ

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