import bigInt from "big-integer";
import { Params } from "./rfc5054";
export declare class Engine {
    readonly N: bigInt.BigInteger;
    readonly g: bigInt.BigInteger;
    readonly hash: string;
    get N_SIZE(): number;
    constructor(params: Params);
    k(): Promise<bigInt.BigInteger>;
    isModZero(a: bigInt.BigInteger, b: bigInt.BigInteger): boolean;
    HASH(...inputs: (Uint8Array)[]): Promise<Uint8Array>;
    PAD(input: Uint8Array): Uint8Array;
    HASHED_CRED(username: string, password: string): Promise<Uint8Array>;
}