import { IKeyManager } from "../../core/interfaces/key-manager";
export declare class BasicKeyManager implements IKeyManager {
    private getEncryptionKey?;
    private ephemeralEncryptionConstant?;
    private encryptedPrivateKey;
    private publicKey;
    private initPromise;
    constructor(privateKey: string, getEncryptionKey?: () => Promise<string>);
    signWebToken: (payload: any) => Promise<string>;
    getPubKey: () => Promise<string>;
    deriveSharedSecret: (publicKey: string) => Promise<string>;
    private init;
    private getDecryptedPrivateKey;
}