public static void Dekriptimi(string message, bool opa)
{
string[] words = message.Split('.');
var bytes = Convert.FromBase64String(words[0]);
string user = Encoding.UTF8.GetString(bytes);
// Console.WriteLine(user);
byte[] bytes1 = Convert.FromBase64String(words[1]);
//string IV = Encoding.UTF8.GetString(bytes1);
// Console.WriteLine(IV);
// bytes1 = Formovargun(IV);
string path = "C:\\Users\\Lenovo\\Desktop\\Detyra1_DS-Gr-6-master\\ds\\bin\\Debug\\netcoreapp3.0\\keys\\" + user + ".pem";
//Console.WriteLine(path);
if (!File.Exists(path))
{
string s = "Celesi " + user + " nuk ekziston";
// Console.WriteLine("Celesi " + user + " nuk ekziston");
}
else
{
RSACryptoServiceProvider rsaPriv = new RSACryptoServiceProvider();
Chilkat.PrivateKey privKey2 = new Chilkat.PrivateKey();
privKey2.LoadPemFile(path);
string privKeyXml = privKey2.GetXml();
rsaPriv.FromXmlString(privKeyXml);
byte[] dekodimi = Convert.FromBase64String(words[2]);
byte[] decryptedRSA = rsaPriv.Decrypt(dekodimi, false);
byte[] dekodimiDes = Convert.FromBase64String(words[3]);
Console.WriteLine("Marresi: " + user);
Console.WriteLine("Mesazhi: " + Encoding.UTF8.GetString(Desdekriptim(decryptedRSA, bytes1, dekodimiDes)));
if (opa)
{
byte[] dataToverify = Convert.FromBase64String(words[5]);
var Bytes12 = Convert.FromBase64String(words[4]);
string perdoruesi = Encoding.UTF8.GetString(Bytes12);
Console.WriteLine("Derguesi" + perdoruesi);
if (Sign.VerifySignedHash(dataToverify, Desdekriptim(decryptedRSA, bytes1, dekodimiDes), perdoruesi))
{
Console.WriteLine("Nenshkrami eshte valid");
}
}
}
}
