可能将.Net AES功能迁移到Java

问题描述

我们已经在.Net中进行了加密/解密，但是当迁移到Java时，即使使用相同的密钥对和盐，它也会产生不同的结果。

请帮助我如何修复Java代码？谢谢！

例如：用Java加密字符串时，.Net中的字符串“ Hello world”得到不同的结果。

我的C＃代码

namespace Utils
{
    public class AES256Crypto
    {
        const string saltStr = "test";
        const string password = "test@1234";

        public static string EncryptString(string text)
        {
            try
            {
                byte[] baPwd = Encoding.UTF8.GetBytes(password);

                // Hash the password with SHA256
                byte[] baPwdHash = SHA256Managed.Create().ComputeHash(baPwd);

                byte[] baText = Encoding.UTF8.GetBytes(text);

                var baEncrypted = AES_Encrypt(baText,baPwdHash);

                string result = Convert.ToBase64String(baEncrypted);
                return result;
            }
            catch
            {
                return string.Empty;
            }
        }

   
        private static byte[] AES_Encrypt(byte[] bytesToBeEncrypted,byte[] passwordBytes)
        {
            byte[] encryptedBytes = null;

            // Set your salt here,change it to meet your flavor:
            // The salt bytes must be at least 8 bytes.       
            byte[] saltBytes = Encoding.UTF8.GetBytes(saltStr);

            using (MemoryStream ms = new MemoryStream())
            {
                using (RijndaelManaged AES = new RijndaelManaged())
                {
                    AES.KeySize = 256;
                    AES.BlockSize = 128;

                    var key = new Rfc2898DeriveBytes(passwordBytes,saltBytes,1000);
                    AES.Key = key.GetBytes(AES.KeySize / 8);
                    AES.IV = key.GetBytes(AES.BlockSize / 8);

                    AES.Mode = CipherMode.CBC;

                    using (var cs = new CryptoStream(ms,AES.CreateEncryptor(),CryptoStreamMode.Write))
                    {
                        cs.Write(bytesToBeEncrypted,bytesToBeEncrypted.Length);
                        cs.Close();
                    }
                    encryptedBytes = ms.ToArray();
                }
            }

            return encryptedBytes;
        }

    }
}

我的JAVA代码

 public static String encrypt(String plainText) {

    try {
    String salt = "test";
    String password = test@1234";

    String initializationVector = "                ";



    int pswdIterations = 1000;

    int keySize = 256;



    byte[] saltBytes = salt.getBytes("UTF-8");// "UTF-8");

    byte[] ivBytes = initializationVector.getBytes("UTF-8");// "UTF-8");



    // Derive the key,given password and salt.

    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");// PBEWithMD5AndDES");

    PBEKeySpec spec = new PBEKeySpec(password.tochararray(),pswdIterations,keySize);



    SecretKey secretKey = factory.generateSecret(spec);

    SecretKeySpec secret = new SecretKeySpec(secretKey.getEncoded(),"AES");



    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); // Cipher.getInstance("AES/CBC/PKCSPadding"

    

    cipher.init(Cipher.ENCRYPT_MODE,secret,new IvParameterSpec(ivBytes));



    byte[] encryptedTextBytes = cipher.doFinal(plainText.getBytes("UTF-8"));// UTF-8"));

    String str = new org.apache.commons.codec.binary.Base64().encodeAsstring(encryptedTextBytes);



    return str;

    } catch (Exception e) {

        return e.toString();
}

我们已经在.Net中进行了加密/解密，但是当迁移到Java时，即使使用相同的密钥对和盐，它也会产生不同的结果。

请帮助我如何修复Java代码？谢谢！

解决方法

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