Java CryptoJs解密函数的加密函数

下面的代码是从正确答案中复制的：

如何用Java编写加密函数？我试过类似的方法，但不起作用：

public static String encrypt(String plainText) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, UnsupportedEncodingException {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        final byte[][] keyAndIV = generateKeyAndIV(32, 16, 1, getNextSalt(), secret.getBytes(StandardCharsets.UTF_8), md5);
        SecretKeySpec skeySpec = new SecretKeySpec(keyAndIV[0], "AES");
        IvParameterSpec iv = new IvParameterSpec(keyAndIV[1]);

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
        byte[] encrypted = cipher.doFinal(plainText.getBytes());

        return Base64.getEncoder().encodeToString(encrypted);
    }

    public static byte[] getNextSalt() {
        byte[] salt = new byte[8];
        RANDOM.nextBytes(salt);
        return salt;
    }

---

encrypt

-方法必须以OpenSSL格式返回数据，该格式包括Salted_uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu的ASCII编码，然后是随机生成的8字节salt和实际的密文，因此数据

但是，请注意，用于OpenSSL格式的密钥派生函数是不安全的，并且不是标准的。

encrypt

方法的一个可能扩展是：

public static String encrypt(String plainText) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, UnsupportedEncodingException {

    byte[] salt =  getNextSalt();
    MessageDigest md5 = MessageDigest.getInstance("MD5");
    final byte[][] keyAndIV = generateKeyAndIV(32, 16, 1, salt, secret.getBytes(StandardCharsets.UTF_8), md5);
    SecretKeySpec skeySpec = new SecretKeySpec(keyAndIV[0], "AES");
    IvParameterSpec iv = new IvParameterSpec(keyAndIV[1]);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
    byte[] encrypted = cipher.doFinal(plainText.getBytes());

    byte[] prefix = "Salted__".getBytes(StandardCharsets.US_ASCII);
    byte[] prefixSaltEncrypted = new byte[prefix.length + salt.length + encrypted.length];
    System.arraycopy(prefix, 0, prefixSaltEncrypted, 0, prefix.length);
    System.arraycopy(salt, 0, prefixSaltEncrypted, prefix.length, salt.length);
    System.arraycopy(encrypted, 0, prefixSaltEncrypted, prefix.length + salt.length, encrypted.length);

    return Base64.getEncoder().encodeToString(prefixSaltEncrypted);
}

---

encrypt

必须以OpenSSL格式返回数据，即前8个字节是

Salted\uuuu

的ASCII编码，然后是8个字节salt，然后是实际的密文，所有内容在串联后都是Base64编码的。盐是随机产生的。据我所知，您的

encrypt

-方法缺少到这种OpenSSL格式的转换。顺便说一句，OpenSSL格式是不安全的，不是标准的。你能用代码写下你的答案吗？我会给你正确的答案。非常感谢。

public static String encrypt(String plainText) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, UnsupportedEncodingException {

    byte[] salt =  getNextSalt();
    MessageDigest md5 = MessageDigest.getInstance("MD5");
    final byte[][] keyAndIV = generateKeyAndIV(32, 16, 1, salt, secret.getBytes(StandardCharsets.UTF_8), md5);
    SecretKeySpec skeySpec = new SecretKeySpec(keyAndIV[0], "AES");
    IvParameterSpec iv = new IvParameterSpec(keyAndIV[1]);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
    byte[] encrypted = cipher.doFinal(plainText.getBytes());

    byte[] prefix = "Salted__".getBytes(StandardCharsets.US_ASCII);
    byte[] prefixSaltEncrypted = new byte[prefix.length + salt.length + encrypted.length];
    System.arraycopy(prefix, 0, prefixSaltEncrypted, 0, prefix.length);
    System.arraycopy(salt, 0, prefixSaltEncrypted, prefix.length, salt.length);
    System.arraycopy(encrypted, 0, prefixSaltEncrypted, prefix.length + salt.length, encrypted.length);

    return Base64.getEncoder().encodeToString(prefixSaltEncrypted);
}