private void HackMessage(IMessage message)
{
var redirectMessage = message as RedirectMessage;
if (redirectMessage == null)
{
return;
}
while (true)
{
var keys = (Dictionary <IPEndPoint, ulong>)EncryptionManager.GetType()
.GetField("peerKeys", BindingFlags.Instance | BindingFlags.NonPublic)
.GetValue(EncryptionManager);
var publicKey = keys[((TcpAddress)redirectMessage.Destination).Endpoint];
var privateKey = BluemeshEncryptor.GeneratePublicKey(publicKey);
var bytes = redirectMessage.Data.ToArray();
BluemeshEncryptor.EncryptBytes(bytes, MessageContainer.HeaderSize, bytes.Length - MessageContainer.HeaderSize, privateKey);
var newMessage = MessageContainer.ReadFromBuffer(bytes, 0, ConnectionManager.Utility).Message;
if (newMessage is DataMessage)
{
Console.WriteLine("FLAG: " + Encoding.UTF8.GetString(((DataMessage)newMessage).Data));
break;
}
redirectMessage = (RedirectMessage)newMessage;
}
}
public void Should_decode_encoded_text()
{
var privateKey = BluemeshEncryptor.GeneratePrivateKey(BitConverter.GetBytes(16742));
var publicKey = BluemeshEncryptor.GeneratePublicKey(privateKey);
Console.WriteLine("e = {0}, d = {1}", publicKey, privateKey);
var buffer = new byte[32];
var message = " ";
Encoding.ASCII.GetBytes(message, 0, message.Length, buffer, 0);
Console.WriteLine(BitConverter.ToString(buffer));
Console.WriteLine(Encoding.ASCII.GetString(buffer));
BluemeshEncryptor.EncryptBytes(buffer, 0, buffer.Length, publicKey);
Console.WriteLine(BitConverter.ToString(buffer));
Console.WriteLine(Encoding.ASCII.GetString(buffer));
BluemeshEncryptor.EncryptBytes(buffer, 0, buffer.Length, privateKey);
Console.WriteLine(BitConverter.ToString(buffer));
Console.WriteLine(Encoding.ASCII.GetString(buffer));
Encoding.ASCII.GetString(buffer).Should().StartWith(message);
}