/// <reference types="node" />
import BigNumber from 'bignumber.js';
interface BaseCurve {
    transformPublicKey(publicKey: Buffer): Buffer;
    publicFromPrivate(privateKey: Buffer): Buffer;
    verify(publicKey: Buffer, digest: Buffer, signature: Buffer): boolean;
    sign(privateKey: Buffer, digest: Buffer): Buffer;
}
interface CurveForKD extends BaseCurve {
    groupOrder: BigNumber;
    getChildPublicKey(IL: Buffer, parentPublicKey: Buffer): Buffer | null;
}
export { BaseCurve, CurveForKD };