import { CryptoKey } from 'webcrypto-core';
/**
 * Class to model the key reference
 */
export default class KeyReference {
    keyReference: string;
    type: string;
    remoteKeyReference?: string | undefined;
    cryptoKey?: CryptoKey | undefined;
    /**
     * Create an instance of <see @class KeyReference>
     * @param keyReference Name of the key in DID document
     * @param extractable True if the key is extractable
     * @param remoteKeyReference Name of the key in a remote server such as key vault. Can be used when difference from DID document
     * @param cryptoKey Reference to a key in an external system
     */
    constructor(keyReference: string, type?: string, remoteKeyReference?: string | undefined, cryptoKey?: CryptoKey | undefined);
}