declare global { interface Window { } const window: Window; const self: Window; } export interface CryptoHasher { update(data: Uint8Array): CryptoHasher; digest(): Uint8Array; } export declare function createHash(algo: string): CryptoHasher; export declare function createHmac(_algo: string, key: Uint8Array): CryptoHasher; export declare function pbkdf2Sync(password: Uint8Array, salt: Uint8Array, iterations: number, keylen: number, _algo: "sha256" | "sha512"): Uint8Array; export declare function randomBytes(length: number): Uint8Array;