Muszę przesłać pliki XML i muszą one zostać zaszyfrowane. Znalazłem kilka przykładów, że jestem blisko, ale kiedy odszyfrowuję plik, kończę na ciągłych znakach śmieciowych. Jest kilka postów na ten temat, ale nie widziałem żadnych, które dokładnie pomogą. Oto szyfrowanie i odszyfrowywanie kodu.Używanie Rijndael do szyfrowania/odszyfrowywania plików
private void EncryptFile(string inputFile, string outputFile, string key) {
try {
byte[] keyBytes;
keyBytes = Encoding.Unicode.GetBytes(key);
Rfc2898DeriveBytes derivedKey = new Rfc2898DeriveBytes(key, keyBytes);
RijndaelManaged rijndaelCSP = new RijndaelManaged();
rijndaelCSP.Key = derivedKey.GetBytes(rijndaelCSP.KeySize/8);
rijndaelCSP.IV = derivedKey.GetBytes(rijndaelCSP.BlockSize/8);
ICryptoTransform encryptor = rijndaelCSP.CreateEncryptor();
FileStream inputFileStream = new FileStream(inputFile, FileMode.Open, FileAccess.Read);
byte[] inputFileData = new byte[(int)inputFileStream.Length];
inputFileStream.Read(inputFileData, 0, (int)inputFileStream.Length);
FileStream outputFileStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
CryptoStream encryptStream = new CryptoStream(outputFileStream, encryptor, CryptoStreamMode.Write);
encryptStream.Write(inputFileData, 0, (int)inputFileStream.Length);
encryptStream.FlushFinalBlock();
rijndaelCSP.Clear();
encryptStream.Close();
inputFileStream.Close();
outputFileStream.Close();
}
catch (Exception ex) {
MessageBox.Show(ex.Message, "Encryption Failed!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
MessageBox.Show("File Encryption Complete!");
}
private void DecryptFile(string inputFile, string outputFile, string key) {
try {
byte[] keyBytes = Encoding.Unicode.GetBytes(key);
Rfc2898DeriveBytes derivedKey = new Rfc2898DeriveBytes(key, keyBytes);
RijndaelManaged rijndaelCSP = new RijndaelManaged();
rijndaelCSP.Key = derivedKey.GetBytes(rijndaelCSP.KeySize/8);
rijndaelCSP.IV = derivedKey.GetBytes(rijndaelCSP.BlockSize/8);
ICryptoTransform decryptor = rijndaelCSP.CreateDecryptor();
FileStream inputFileStream = new FileStream(inputFile, FileMode.Open, FileAccess.Read);
CryptoStream decryptStream = new CryptoStream(inputFileStream, decryptor, CryptoStreamMode.Read);
byte[] inputFileData = new byte[(int)inputFileStream.Length];
decryptStream.Read(inputFileData, 0, (int)inputFileStream.Length);
FileStream outputFileStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
outputFileStream.Write(inputFileData, 0, inputFileData.Length);
outputFileStream.Flush();
rijndaelCSP.Clear();
decryptStream.Close();
inputFileStream.Close();
outputFileStream.Close();
}
catch (Exception ex) {
MessageBox.Show(ex.Message, "Decryption Failed!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
MessageBox.Show("File Decryption Complete!");
}
I skończyć z
<?xml version="1.0" encoding="UTF-8"?>
<transaction>
<header>
<qOrderNumber></qOrderNumber>
<qRequestDate></qRequestDate>
<testOrder></testOrder>
<qCustomerNumber></qCustomerNumber>
<transactionStatus></transactionStatus>
</header>
<lines>
<line>
<productID></productID>
<serialNumber></serialNumber>
</line>
<line>
<productID></productID>
<serialNumber></serialNumber>
</line>
</lines>
</transaction>NULNULNULNULNULNUL
I mamy zwycięzcę !!!! Wielkie dzięki! – mjames