285 lines
10 KiB
Rust
285 lines
10 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use authenticator::{
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authenticatorservice::{AuthenticatorService, RegisterArgs, SignArgs},
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crypto::COSEAlgorithm,
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ctap2::server::{
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AuthenticationExtensionsClientInputs, CredentialProtectionPolicy,
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PublicKeyCredentialDescriptor, PublicKeyCredentialParameters,
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PublicKeyCredentialUserEntity, RelyingParty, ResidentKeyRequirement, Transport,
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UserVerificationRequirement,
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},
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statecallback::StateCallback,
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Pin, StatusPinUv, StatusUpdate,
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};
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use getopts::Options;
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use rand::{thread_rng, RngCore};
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use std::sync::mpsc::{channel, RecvError};
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use std::{env, thread};
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fn print_usage(program: &str, opts: Options) {
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let brief = format!("Usage: {program} [options]");
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print!("{}", opts.usage(&brief));
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}
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fn main() {
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env_logger::init();
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let args: Vec<String> = env::args().collect();
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let program = args[0].clone();
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let rp_id = "example.com".to_string();
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let app_id = "https://fido.example.com/myApp".to_string();
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let mut opts = Options::new();
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opts.optflag("h", "help", "print this help menu").optopt(
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"t",
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"timeout",
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"timeout in seconds",
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"SEC",
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);
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opts.optflag(
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"a",
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"app_id",
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&format!("Using App ID {app_id} from origin 'https://{rp_id}'"),
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);
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opts.optflag("s", "hmac_secret", "With hmac-secret");
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opts.optflag("h", "help", "print this help menu");
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opts.optflag("f", "fallback", "Use CTAP1 fallback implementation");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(f) => panic!("{}", f.to_string()),
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};
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if matches.opt_present("help") {
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print_usage(&program, opts);
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return;
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}
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let using_app_id = matches.opt_present("app_id");
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let mut manager =
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AuthenticatorService::new().expect("The auth service should initialize safely");
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manager.add_u2f_usb_hid_platform_transports();
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let fallback = matches.opt_present("fallback");
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let timeout_ms = match matches.opt_get_default::<u64>("timeout", 25) {
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Ok(timeout_s) => {
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println!("Using {}s as the timeout", &timeout_s);
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timeout_s * 1_000
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}
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Err(e) => {
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println!("{e}");
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print_usage(&program, opts);
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return;
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}
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};
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println!("Asking a security key to register now...");
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let mut chall_bytes = [0u8; 32];
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thread_rng().fill_bytes(&mut chall_bytes);
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let (status_tx, status_rx) = channel::<StatusUpdate>();
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thread::spawn(move || loop {
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match status_rx.recv() {
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Ok(StatusUpdate::InteractiveManagement(..)) => {
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panic!("STATUS: This can't happen when doing non-interactive usage");
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}
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Ok(StatusUpdate::SelectDeviceNotice) => {
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println!("STATUS: Please select a device by touching one of them.");
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}
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Ok(StatusUpdate::PresenceRequired) => {
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println!("STATUS: waiting for user presence");
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinRequired(sender))) => {
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let raw_pin =
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rpassword::prompt_password_stderr("Enter PIN: ").expect("Failed to read PIN");
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sender.send(Pin::new(&raw_pin)).expect("Failed to send PIN");
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::InvalidPin(sender, attempts))) => {
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println!(
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"Wrong PIN! {}",
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attempts.map_or("Try again.".to_string(), |a| format!(
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"You have {a} attempts left."
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))
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);
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let raw_pin =
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rpassword::prompt_password_stderr("Enter PIN: ").expect("Failed to read PIN");
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sender.send(Pin::new(&raw_pin)).expect("Failed to send PIN");
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinAuthBlocked)) => {
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panic!("Too many failed attempts in one row. Your device has been temporarily blocked. Please unplug it and plug in again.")
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinBlocked)) => {
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panic!("Too many failed attempts. Your device has been blocked. Reset it.")
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::InvalidUv(attempts))) => {
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println!(
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"Wrong UV! {}",
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attempts.map_or("Try again.".to_string(), |a| format!(
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"You have {a} attempts left."
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))
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);
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::UvBlocked)) => {
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println!("Too many failed UV-attempts.");
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continue;
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}
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Ok(StatusUpdate::PinUvError(e)) => {
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panic!("Unexpected error: {:?}", e)
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}
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Ok(StatusUpdate::SelectResultNotice(_, _)) => {
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panic!("Unexpected select device notice")
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}
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Err(RecvError) => {
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println!("STATUS: end");
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return;
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}
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}
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});
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let user = PublicKeyCredentialUserEntity {
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id: "user_id".as_bytes().to_vec(),
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name: Some("A. User".to_string()),
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display_name: None,
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};
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// If we're testing AppID support, then register with an RP ID that isn't valid for the origin.
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let relying_party = RelyingParty {
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id: if using_app_id {
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app_id.clone()
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} else {
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rp_id.clone()
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},
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name: None,
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};
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let ctap_args = RegisterArgs {
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client_data_hash: chall_bytes,
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relying_party,
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origin: format!("https://{rp_id}"),
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user,
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pub_cred_params: vec![
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PublicKeyCredentialParameters {
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alg: COSEAlgorithm::ES256,
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},
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PublicKeyCredentialParameters {
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alg: COSEAlgorithm::RS256,
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},
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],
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exclude_list: vec![PublicKeyCredentialDescriptor {
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id: vec![
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
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0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
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0x1c, 0x1d, 0x1e, 0x1f,
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],
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transports: vec![Transport::USB, Transport::NFC],
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}],
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user_verification_req: UserVerificationRequirement::Preferred,
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resident_key_req: ResidentKeyRequirement::Discouraged,
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extensions: AuthenticationExtensionsClientInputs {
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cred_props: Some(true),
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hmac_create_secret: Some(matches.opt_present("hmac_secret")),
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min_pin_length: Some(true),
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credential_protection_policy: Some(
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CredentialProtectionPolicy::UserVerificationOptionalWithCredentialIDList,
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),
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..Default::default()
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},
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pin: None,
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use_ctap1_fallback: fallback,
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};
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let attestation_object;
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loop {
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let (register_tx, register_rx) = channel();
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let callback = StateCallback::new(Box::new(move |rv| {
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register_tx.send(rv).unwrap();
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}));
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if let Err(e) = manager.register(timeout_ms, ctap_args, status_tx.clone(), callback) {
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panic!("Couldn't register: {:?}", e);
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};
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let register_result = register_rx
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.recv()
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.expect("Problem receiving, unable to continue");
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match register_result {
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Ok(a) => {
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println!("Ok!");
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attestation_object = a;
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break;
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}
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Err(e) => panic!("Registration failed: {:?}", e),
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};
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}
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println!("Register result: {:?}", &attestation_object);
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println!();
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println!("*********************************************************************");
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println!("Asking a security key to sign now, with the data from the register...");
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println!("*********************************************************************");
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let allow_list;
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if let Some(cred_data) = attestation_object.att_obj.auth_data.credential_data {
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allow_list = vec![PublicKeyCredentialDescriptor {
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id: cred_data.credential_id,
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transports: vec![Transport::USB],
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}];
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} else {
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allow_list = Vec::new();
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}
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let ctap_args = SignArgs {
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client_data_hash: chall_bytes,
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origin: format!("https://{rp_id}"),
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relying_party_id: rp_id,
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allow_list,
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user_verification_req: UserVerificationRequirement::Preferred,
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user_presence_req: true,
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extensions: AuthenticationExtensionsClientInputs {
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app_id: using_app_id.then(|| app_id.clone()),
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..Default::default()
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},
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pin: None,
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use_ctap1_fallback: fallback,
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};
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loop {
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let (sign_tx, sign_rx) = channel();
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let callback = StateCallback::new(Box::new(move |rv| {
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sign_tx.send(rv).unwrap();
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}));
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if let Err(e) = manager.sign(timeout_ms, ctap_args, status_tx, callback) {
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panic!("Couldn't sign: {:?}", e);
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}
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let sign_result = sign_rx
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.recv()
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.expect("Problem receiving, unable to continue");
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match sign_result {
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Ok(assertion_object) => {
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println!("Assertion Object: {assertion_object:?}");
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if using_app_id {
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println!(
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"Used AppID: {}",
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assertion_object
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.extensions
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.app_id
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.expect("app id extension should be set")
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);
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}
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println!("Done.");
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break;
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}
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Err(e) => panic!("Signing failed: {:?}", e),
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}
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}
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}
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