/// <reference types="node" />
import crypto from 'crypto';
export default class Ecdh {
    publicKey: string;
    privateKey: string;
    sharedSecret: string | undefined;
    iv: string;
    __curve: string;
    __algorithm: string;
    __ecdh: crypto.ECDH | undefined;
    constructor(curve?: string, algorithm?: string);
    generateKeys(): void;
    setPrivateKey(privateBase64: string): boolean;
    setSharedSecret(secretBase64: string): boolean;
    deriveSharedSecret(otherPublicKey: string, iv?: string): boolean;
    encode(data: string, iv?: string): string;
    encodeiv(data: string, iv?: string): string;
    decode(encrypted: string, iv?: string): string;
    decodeiv(encrypted: string): string;
}