public static bool TokenStatus(string token)
{
Chilkat.Jwt jwt = new Chilkat.Jwt();
//Chilkat.Jwt jwt = new Chilkat.Jwt();
//string payload = jwt.GetPayload(token);
//Console.WriteLine(payload);
Chilkat.PublicKey pubKey = new Chilkat.PublicKey();
bool success = pubKey.LoadFromFile("C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" +
GetTuser(token, false) + ".pub.pem");
Console.WriteLine(GetTuser(token, false));
bool sigVerified = jwt.VerifyJwtPk(token, pubKey);
if (sigVerified)
{
// Console.WriteLine("valid " + Convert.ToString(sigVerified));
int leeway = 60;
bool bTimeValid = jwt.IsTimeValid(token, leeway);
Console.WriteLine("time constraints valid: " + Convert.ToString(bTimeValid));
if (bTimeValid)
{
// Console.WriteLine(GetTuser(token, true));
}
return(true);
}
else
{
// Console.WriteLine("nuk eshte valid");
return(false);
}
}
public static void Createuser(string user)
{
Connectimimedb.InsertStudent(user);
Chilkat.Global glob = new Chilkat.Global();
Chilkat.Rsa rsa = new Chilkat.Rsa();
glob.UnlockBundle("hELLOW");
// Generate a 1024-bit key. Chilkat RSA supports
// key sizes ranging from 512 bits to 4096 bits.
bool success = rsa.GenerateKey(1024);
if (success != true)
{
Console.WriteLine(rsa.LastErrorText);
return;
}
// Keys are exported in XML format:
string publicKeyXml = rsa.ExportPublicKey();
string privateKeyXml = rsa.ExportPrivateKey();
// Save the private key in PEM format:
Chilkat.PrivateKey privKey = new Chilkat.PrivateKey();
success = privKey.LoadXml(privateKeyXml);
success = privKey.SaveRsaPemFile("C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + user + ".pem");
Console.WriteLine("Eshte krijuar qelesi privat " + "keys\\" + user + ".pem");
// Save the public key in PEM format:
Chilkat.PublicKey pubKey = new Chilkat.PublicKey();
success = pubKey.LoadXml(publicKeyXml);
success = pubKey.SaveOpenSslPemFile("C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + user + ".pub.pem");
Console.WriteLine("Eshte krijuar qelesi public " + "keys\\" + user + ".pub.pem");
}
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);
}