/**
 * @octomil/browser — Device authentication manager
 *
 * Handles device registration, token bootstrap/refresh/revoke for
 * authenticated model downloads and training round participation.
 */
import type { DeviceAuthConfig } from "./types.js";
export declare class DeviceAuth {
    private readonly serverUrl;
    private readonly apiKey;
    private token;
    private deviceId;
    private refreshTimer;
    private disposed;
    constructor(config: DeviceAuthConfig);
    /** Register this device and obtain an initial auth token. */
    bootstrap(orgId: string): Promise<void>;
    /** Get a valid access token, refreshing if needed. */
    getToken(): Promise<string>;
    /** Refresh the current token. */
    refreshToken(): Promise<void>;
    /** Revoke the current token and clear local state. */
    revokeToken(): Promise<void>;
    /** Whether we currently hold a valid token. */
    get isAuthenticated(): boolean;
    /** Current device identifier. */
    get currentDeviceId(): string | null;
    /** Release timers. */
    dispose(): void;
    private request;
    private isTokenExpired;
    private isTokenExpiringSoon;
    private scheduleRefresh;
    private clearRefreshTimer;
    private clearState;
    /** Generate a stable device ID by hashing browser fingerprint data. */
    generateDeviceId(): Promise<string>;
    private ensureNotDisposed;
}
//# sourceMappingURL=device-auth.d.ts.map