Question

如何使用这些方法在C＃中加密/解密阿拉伯字符串???? 当我试图解密任何阿拉伯字符串时，它返回“????”问号..如何通过此代码使用编码UTF8？任何帮助请.. 提前谢谢

public static string Encrypt(string pDataToEncrypt)
{

    ASCIIEncoding textConverter = new ASCIIEncoding();
    RijndaelManaged myRijndael = new RijndaelManaged();
    byte[] toEncrypt;

    ICryptoTransform encryptor = myRijndael.CreateEncryptor(key, IV);

    MemoryStream msEncrypt = new MemoryStream();
    CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor,            CryptoStreamMode.Write);

    toEncrypt = textConverter.GetBytes(pDataToEncrypt);

    csEncrypt.Write(toEncrypt, 0, toEncrypt.Length);
    csEncrypt.FlushFinalBlock();

    return Convert.ToBase64String(msEncrypt.GetBuffer(), 0, (int)msEncrypt.Length);
}

public static string Decrypt(string pDataToDecrypt)
{
    RijndaelManaged myRijndael = new RijndaelManaged();
    byte[] fromEncrypt;

    //Encoding asciiEncoding = Encoding.ASCII;

    fromEncrypt = Convert.FromBase64String(pDataToDecrypt);
    ICryptoTransform decryptor = myRijndael.CreateDecryptor(key, IV);

    MemoryStream msDecrypt = new MemoryStream(fromEncrypt, 0, fromEncrypt.Length);
    CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read);
    StreamReader sr = new StreamReader(csDecrypt);

    return sr.ReadToEnd();

}

Answer 1

使用UTF-8，你的代码应该是这样的：

public static string Encrypt(string pDataToEncrypt)
{

    RijndaelManaged myRijndael = new RijndaelManaged();

    ICryptoTransform encryptor = myRijndael.CreateEncryptor(key, IV);

    MemoryStream msEncrypt = new MemoryStream();
    CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor,CryptoStreamMode.Write);

    byte[] toEncrypt = Encoding.UTF8.GetBytes(pDataToEncrypt);

    csEncrypt.Write(toEncrypt, 0, toEncrypt.Length);
    csEncrypt.FlushFinalBlock();

    return Convert.ToBase64String(msEncrypt.GetBuffer(), 0, (int)msEncrypt.Length);
}

public static string Decrypt(string pDataToDecrypt)
{
    RijndaelManaged myRijndael = new RijndaelManaged();

    byte[] fromEncrypt = Convert.FromBase64String(pDataToDecrypt);
    ICryptoTransform decryptor = myRijndael.CreateDecryptor(key, IV);

    MemoryStream msDecrypt = new MemoryStream(fromEncrypt, 0, fromEncrypt.Length);
    CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read);

    byte[] plainTextBytes = new byte[fromEncrypt.Length];
    int decryptedByteCount = csDecrypt.Read(plainTextBytes, 0, plainTextBytes.Length);

    return Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount);
}

在C＃中加密/解密阿拉伯字符串

1 个答案: