Dercyption错误“填充无效且无法删除” [英] Dercyption Error “Padding is invalid and cannot be removed”

问题描述

大家好，

这是我的解密代码，我想要解密这个密码，但问题是它出错了

Hi All,
This is my decryption code i want to decrypt this password but problem is that it is giving an error

static void Main(string[] args)
{
    string str = Decrypt("vASqxLq4dmegE0l3K8T7ng==", "");
    Console.WriteLine(str);
    Console.ReadKey();
}
    
private const string IV = "MazenTech.com.pk";
private const int keysize = 128;
public static string Decrypt(string cipherText, string passPhrase)
{
    byte[] plainTextBytes = null;
    int decryptedByteCount = 0;
    try
    {
        byte[] IVBytes = Encoding.ASCII.GetBytes(IV);
        byte[] cipherTextBytes = Convert.FromBase64String(cipherText);
        PasswordDeriveBytes password = new PasswordDeriveBytes(passPhrase, null);
        byte[] keyBytes = password.GetBytes(keysize / 8);
        RijndaelManaged symmetricKey = new RijndaelManaged();
        symmetricKey.Mode = CipherMode.CBC;
        ICryptoTransform decryptor = symmetricKey.CreateDecryptor(keyBytes, IVBytes);
        MemoryStream memoryStream = new MemoryStream(cipherTextBytes);
        CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
        plainTextBytes = new byte[cipherTextBytes.Length];
        decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length); // error this line 
        memoryStream.Close();
        cryptoStream.Close();
    
    }
    catch (Exception ex)
    {
        Console.WriteLine("Your Password is Incorrect....");
    }
    return Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount);
    
}

如何解决它请帮帮我。谢谢你提前:)）

How to fix it please help me.Thanks in Advance:)

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