import { Tier } from '../core/salter';
import { Serder } from '../core/serder';
import { Verfer } from '../core/verfer';
import { Encrypter } from '../core/encrypter';
import { Decrypter } from '../core/decrypter';
/**
 * Agent is a custodial entity that can be used in conjuntion with a local Client to establish the
 * KERI "signing at the edge" semantic
 */
export declare class Agent {
    pre: string;
    anchor: string;
    verfer: Verfer | null;
    state: any | null;
    sn: number | undefined;
    said: string | undefined;
    constructor(agent: any);
    private parse;
    private event;
}
/**
 * Controller is responsible for managing signing keys for the client and agent.  The client
 * signing key represents the Account for the client on the agent
 */
export declare class Controller {
    private bran;
    stem: string;
    tier: Tier;
    ridx: number;
    salter: any;
    signer: any;
    private nsigner;
    serder: Serder;
    private keys;
    ndigs: string[];
    constructor(bran: string, tier: Tier, ridx?: number, state?: any | null);
    approveDelegation(_agent: Agent): any[];
    get pre(): string;
    get event(): any[];
    get verfers(): [];
    derive(state: any): Serder;
    rotate(bran: string, aids: Array<any>): {
        rot: import("../core/core").Dict<any>;
        sigs: any[];
        sxlt: any;
        keys: Record<any, any>;
    };
    recrypt(enc: string, decrypter: Decrypter, encrypter: Encrypter): any;
}