c# 代码转化成JAVA代码

Question

public static string DecryptData(string password, string passwordSalt, string IV, string encryptedData)
        {
            byte[] cipherText = Convert.FromBase64String(encryptedData);
            byte[] key = GetKey(password, passwordSalt);
            string plaintext = null;

            using (RijndaelManaged aes256 = new RijndaelManaged())
            {
                aes256.IV = Convert.FromBase64String(IV);
                aes256.Key = key;
                aes256.Padding = PaddingMode.PKCS7;
                aes256.Mode = CipherMode.CBC;

                ICryptoTransform decryptor = aes256.CreateDecryptor(aes256.Key, aes256.IV);
                try
                {
                    using (MemoryStream msDecrypt = new MemoryStream(cipherText))
                    {
                        using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
                        {
                            using (StreamReader srDecrypt = new StreamReader(csDecrypt))
                            {
                                plaintext = srDecrypt.ReadToEnd();
                            }
                        }
                    }
                }
                catch (CryptographicException)
                {
                    plaintext = null;
                }
            }
            return plaintext;
        }

    private static byte[] GetKey(string password, string salt)
        {
            using (Rfc2898DeriveBytes pbkdf2 = new Rfc2898DeriveBytes(password, Convert.FromBase64String(salt), PBKDF2_ITERATIONS))
            {
                return pbkdf2.GetBytes(KEY_SIZE_BYTES);
            }
        }

请把c# 代码转化成JAVA代码。

Answer 1

引用chatGPT作答，以下转换后的代码:

import java.io.;
import java.security.;
import javax.crypto.;
import javax.crypto.spec.;

public class Example {
private static final int PBKDF2_ITERATIONS = 1000;
private static final int KEY_SIZE_BYTES = 32;
public static String decryptData(String password, String passwordSalt, String IV, String encryptedData) {
    byte[] cipherText = Base64.getDecoder().decode(encryptedData);
    byte[] key = getKey(password, passwordSalt);
    String plaintext = null;

    try {
        Cipher aes256 = Cipher.getInstance("AES/CBC/PKCS5Padding");
        aes256.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key, "AES"), new IvParameterSpec(Base64.getDecoder().decode(IV)));

        plaintext = new String(aes256.doFinal(cipherText), "UTF-8");
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
        plaintext = null;
    }

    return plaintext;
}

private static byte[] getKey(String password, String salt) {
    try {
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        KeySpec spec = new PBEKeySpec(password.toCharArray(), Base64.getDecoder().decode(salt), PBKDF2_ITERATIONS, KEY_SIZE_BYTES * 8);
        SecretKey tmp = factory.generateSecret(spec);
        return tmp.getEncoded();
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        return null;
    }
}