/// <reference types="node" />
import { Credentials, EncryptedCredentials, PassportData, RequestedFields } from './interfaces';
import { StringOrBuffer } from './types';
export declare class TelegramPassport {
    private readonly privateKey;
    constructor(privateKey: StringOrBuffer);
    decryptData(data: StringOrBuffer, secret: StringOrBuffer, hash: StringOrBuffer): Buffer;
    decryptPassportCredentials(encryptedCredentials: EncryptedCredentials): Credentials;
    decryptPassportData(passportData: PassportData): RequestedFields;
}