/// <reference types="node" />
/**
 * The Key-class of the wallet
 */
export declare class Key {
    private readonly _privateKey;
    private readonly _publicKey;
    private readonly _address;
    /**
     * initialized a new key
     * @param privateKey the privateKey of the key
     */
    constructor(privateKey: string | Buffer);
    get privateKey(): string;
    get address(): string;
    get publicKey(): string;
}