/// <reference types="node" />
import { ec as EC } from 'elliptic';
export declare function generateKeyPairHex(): {
    publicKey: string;
    privateKey: string;
};
export declare function generateKeyPair(): {
    publicKey: string;
    privateKey: EC.KeyPair;
};
export declare function sign(message: string, privateKey: Buffer | EC.KeyPair): any;
export declare function verify(message: string, signature: EC.Signature | EC.SignatureOptions, publicKey: Buffer | EC.KeyPair): boolean;
export declare function derive(privateKey: string, otherPublicKey: string): any;