import { PersistedIdentity } from './types';
import { Transport } from './transport';
export interface KeyRotationPolicy {
    maxAge?: number;
    maxSignatures?: number;
    algorithm?: string;
}
export interface KeyRotationResult {
    success: boolean;
    newKeyId?: string;
    oldKeyId?: string;
    gracePeriodEnd?: Date;
    error?: string;
}
export interface KeyHealth {
    age: number;
    signatureCount: number;
    shouldRotate: boolean;
    lastRotated?: Date;
}
export declare class KeyRotationManager {
    private identity;
    private transport;
    private policy;
    private signatureCount;
    private keyCreatedAt;
    private lastRotatedAt?;
    constructor(identity: PersistedIdentity, transport: Transport, policy?: KeyRotationPolicy);
    checkKeyHealth(): KeyHealth;
    incrementSignatureCount(): void;
    rotateKeys(reason?: string): Promise<KeyRotationResult>;
    setupAutoRotation(callback?: (result: KeyRotationResult) => void): NodeJS.Timer;
    private getRegistryUrl;
    private extractAgentId;
}