/**
 * @private
 * @module fly
 * @hidden
 */
declare type CryptoData = BufferSource | string;
/** @hidden */
export declare const crypto: {
    subtle: {
        digest(algo: string, data: CryptoData, encoding?: string): Promise<string | ArrayBuffer>;
        digestSync(algo: string, data: CryptoData, encoding?: string): string | ArrayBuffer;
    };
    getRandomValues(typedArray: Uint8Array): void;
};
export {};
