import { Encoding, IIvAndEncryptedData } from './typings';
/**
 * separate the ivString with the encrypted data string
 * @param encryptedData encrypted data that will be separated
 * @param encoding the encoding that used in the encryption process
 * @returns object that contains the ivString and encrypted data string
 */
export declare function getIvAndEncryptedDataOnly(encryptedData: string, encoding: Encoding): IIvAndEncryptedData;
/**
 * remove padding( `=` | equals sign) for string that encoded with base64
 * @param encodedString base64 string that the padding will be removed
 * @returns base64 string that the padding already removed
 */
export declare function removeBase64Padding(encodedString: string): string;
/**
 * generate random 256bits(32 characters) key
 * @returns return a 32 characters string
 */
export declare function genKey(): string;
export declare function getDeprecateMessage(functionName: string, oldVersion: string, newVersion: string): string;