export declare function paddingLeft(value: string, length: number, paddingChar: string): string;
export declare const generatekeyAndIv: (program_id: string, user_id: string, installation_id?: string) => {
    key: string;
    iv: string;
};
export declare const generatekeyAndIvUsingUserID: (user_id: string) => {
    key: string;
    iv: string;
};
export declare const generatekeyAndIvCode: (code: string) => {
    key: string;
    iv: string;
};