public static void exportKey(string type, string name, string path)
{
string path1 = "C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + name + ".pem";
string path2 = "C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + name + ".pub.pem";
if ((type == "private"))
{
if (!File.Exists(path1))
{
Console.WriteLine("celesi nuk ekziston");
}
else if (path == "")
{
//XElement file = XElement.Load(@path1);
Chilkat.PrivateKey pkey = new Chilkat.PrivateKey();
pkey.LoadPem(path1);
string pkeyXml;
// Get the private key in XML format:
pkeyXml = pkey.GetXml();
Console.WriteLine(pkeyXml);
}
else
{
XElement file = XElement.Load(@path1);
//Console.WriteLine(file);
file.Save("keys1\\" + name + ".xml");
file.Save(path);
Console.WriteLine("celsi u ruajt ne folderin key1");
}
}
else if (type == "public")
{
if (!File.Exists(path2))
{
Console.WriteLine("celesi nuk ekziston");
}
else if (path == "")
{
XElement file = XElement.Load(@path1);
Console.WriteLine(file);
//XElement file = XElement.Load(@path1);
Chilkat.PublicKey pukey = new Chilkat.PublicKey();
pukey.LoadOpenSslPemFile(path1);
string pkeyXml;
// Get the private key in XML format:
pkeyXml = pukey.GetXml();
Console.WriteLine(pkeyXml);
}
else
{
XElement file = XElement.Load(@path1);
//Console.WriteLine(file);
file.Save("key1\\" + name + ".pub.xml");
file.Save(path);
Console.WriteLine("celsi u ruajt ne folderin key1");
//XmlDocument FILE = new XmlDocument();
//FILE.LoadXml(file);
//FILE.Save("C:\\keys1\\" + name + ".pub.xml");
//
}
}
else
{
Console.WriteLine("Operacioni qe keni kerkuar nuk mund te mundesohet");
shfaq();
}
}
public static string Enkriptimi(string name, string message, string user)
{
string s = "C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + name + ".pub.pem";
byte[] bytePlaintext =
Encoding.UTF8.GetBytes(message);
RSACryptoServiceProvider rsaPublic = new RSACryptoServiceProvider();
Chilkat.PublicKey pubKey2 = new Chilkat.PublicKey();
pubKey2.LoadOpenSslPemFile(s);
string pubKeyXml = pubKey2.GetXml();
rsaPublic.FromXmlString(pubKeyXml);
DESCryptoServiceProvider FjalaDES =
new DESCryptoServiceProvider();
byte[] keyRandom = GenerateKey();
byte[] keyIV = GenerateIv();
FjalaDES.Key = keyRandom;
FjalaDES.IV = keyIV;
FjalaDES.Mode = CipherMode.CBC;
FjalaDES.Padding = PaddingMode.PKCS7;
// FjalaDES.Key = Encoding.UTF8.GetBytes("12345678");
// FjalaDES.IV = Encoding.UTF8.GetBytes("12345678");
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms,
FjalaDES.CreateEncryptor(),
CryptoStreamMode.Write);
cs.Write(bytePlaintext, 0, bytePlaintext.Length);
cs.FlushFinalBlock();
cs.Close();
byte[] byteCiphertexti = ms.ToArray();
// mesazhi i koduar nga celsi des
string ciphertexti = Convert.ToBase64String(byteCiphertexti);
// celsi des i koduar permes celsit rsa
byte[] encryptedRSA = rsaPublic.Encrypt(keyRandom, false);
string ciphertexti1 = Convert.ToBase64String(encryptedRSA);
//Kodimi i emrit te celsit
byte[] emriVarg = Formovargun(name);
string ciphertexti2 = Convert.ToBase64String(emriVarg);
//kodimi i iv
string ciphertexti3 = Convert.ToBase64String(FjalaDES.IV);
//pjesa e 3
byte[] signedData = Sign.HashAndSignBytes(byteCiphertexti, user);
string ciphertexti5 = Convert.ToBase64String(signedData);
string ciphertexti4 = Convert.ToBase64String(Formovargun(user));
string total = ciphertexti2 + "." + ciphertexti3 + "." + ciphertexti1 +
"." + ciphertexti + ciphertexti4 + ciphertexti5;
// Console.WriteLine(ciphertexti);
return(total);
}
