What are the best practices for implementing Fido2 authentication in PHP?

To implement Fido2 authentication in PHP, it is recommended to use a library like WebAuthn to handle the authentication process. This library simplifies the implementation of Fido2 authentication by providing functions to handle registration and authentication requests. 

// Include the WebAuthn library
require_once 'WebAuthn.php';

// Initialize the WebAuthn object
$webauthn = new WebAuthn();

// Handle registration request
if ($_POST['action'] === 'register') {
    $registrationOptions = $webauthn->getRegistrationOptions($_POST['username'], $_POST['displayName']);
    echo json_encode($registrationOptions);
}

// Handle authentication request
if ($_POST['action'] === 'authenticate') {
    $authenticationOptions = $webauthn->getAuthenticationOptions($_POST['username']);
    echo json_encode($authenticationOptions);
}

Keywords

Fido2 authentication PHP implementation best practices

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