import { ec as EC, curve as curveI } from 'elliptic';
import * as BN from 'bn.js';
import BasePoint = curveI.base.BasePoint;
export declare function defaultCurve(): Curve;
export declare abstract class Curve {
    private _name;
    private _curve;
    private _order;
    private _generator;
    private _orderSize;
    constructor(_name: string, _curve: EC);
    /**
     *  @description name of elliptic curve
     */
    name(): string;
    /**
     *  @description elliptic curve used for generating keys
     */
    getCurve(): EC;
    /**
     *  @description total number of points that we can have on out elliptic curve
     */
    order(): BN;
    /**
     * @description (x, y) point which is base of the point the curve
     */
    generator(): BasePoint;
    /**
     * @description size of the order in bytes
     */
    orderSize(): number;
}
export declare class CurveSecp256k1 extends Curve {
    constructor();
}
export declare class CurveEd25519 extends Curve {
    constructor();
}