小编use*_*578的帖子

我正在尝试使用AES算法编写一个简单的程序来加密和解密文件.我没有加密问题,但解密..

public static void main(String[] args) throws NoSuchAlgorithmException, FileNotFoundException, InvalidKeyException, NoSuchPaddingException, IllegalBlockSizeException, BadPaddingException {

    // ????????????? ????????? ??????
    KeyGenerator keyGenS = KeyGenerator.getInstance("AES");
    keyGenS.init(128);
    SecretKey sKey1 = keyGenS.generateKey();
    SecretKey sKey2 = keyGenS.generateKey();
    // ??????? ????????? ?????? ? ?????? ? ?????? ? ????
    String key1 = SecretKeyToString(sKey1);
    String key2 = SecretKeyToString(sKey2);

    spreader.write(fileName1, key1);
    spreader.write(fileName2, key2);
    spreader.write(fileNameS1, key1);
    spreader.write(fileNameS2, key2);


    // ?????? ????????? ?????? ?? ????? ? ??????? ??????? ? ??? SecretKey
    key1 = spreader.read(fileName1);
    System.out.println("????????? ???? 1?? ????????????: " +key1);


    SecretKey seansKey1=getKeyInstance(key1); …