/**
 * @module webauthn
 * @description WebAuthn-based biometric authentication implementation
 */
import type { AuthChallenge, AuthResult, DeviceInfo, BiometricSettings } from '../../types/index.js';
import type { PublicKeyCredentialCreationOptionsJSON, PublicKeyCredentialRequestOptionsJSON, RegistrationResponseJSON } from '@simplewebauthn/browser';
/**
 * Initialize WebAuthn for a new device
 * @param settings Biometric settings for the device
 * @returns Device registration options
 */
export declare function initializeWebAuthn(settings: BiometricSettings): Promise<PublicKeyCredentialCreationOptionsJSON>;
/**
 * Register a new device with WebAuthn
 * @param options WebAuthn registration options
 * @returns Device registration response
 */
export declare function registerDevice(options: PublicKeyCredentialCreationOptionsJSON): Promise<RegistrationResponseJSON>;
/**
 * Generate an authentication challenge
 * @param deviceInfo Device to authenticate with
 * @returns Authentication challenge
 */
export declare function generateChallenge(deviceInfo: DeviceInfo): Promise<AuthChallenge>;
/**
 * Authenticate using WebAuthn
 * @param challenge Authentication challenge
 * @returns Authentication result
 */
export declare function authenticate(challenge: PublicKeyCredentialRequestOptionsJSON): Promise<AuthResult>;