/// <reference types="node" />
import { PrivateKeyStore, SessionPrivateKeyData } from '@relaycorp/relaynet-core';
import { AxiosInstance } from 'axios';
export declare class VaultPrivateKeyStore extends PrivateKeyStore {
    protected readonly axiosClient: AxiosInstance;
    constructor(vaultUrl: string, vaultToken: string, kvPath: string);
    protected saveIdentityKey(privateAddress: string, privateKey: CryptoKey): Promise<void>;
    protected saveSessionKeySerialized(keyId: string, keySerialized: Buffer, privateAddress: string, peerPrivateAddress?: string): Promise<void>;
    retrieveIdentityKey(privateAddress: string): Promise<CryptoKey | null>;
    private saveData;
    protected retrieveSessionKeyData(keyId: string): Promise<SessionPrivateKeyData | null>;
    private retrieveData;
}