public void Write(List <byte> dest)
{
var buf = new List <byte>();
foreach (var one in Mappings)
{
one.Key.Write(buf);
buf.Add((byte)'=');
one.Value.Write(buf);
buf.Add((byte)';');
}
dest.AddRange(BitConverter.GetBytes(BufUtils.Flip16((ushort)buf.Count)));
dest.AddRange(buf);
}
private BufLen ReadLength()
{
InBufPos = 0;
DecodeBufPos = 0;
while (InBufPos < 16)
{
if (MySocket.Available > 0)
{
var len = MySocket.Receive(InBuf, InBufPos, 16 - InBufPos, SocketFlags.None);
if (len == 0)
{
throw new EndOfStreamEncounteredException();
}
InBufPos += len;
}
else
{
Thread.Sleep(400);
if (!MySocket.Connected)
{
throw new EndOfStreamEncounteredException();
}
}
}
Cipher.ProcessBytes(new BufLen(InBuf, 0, 16));
BlockLength = BufUtils.Flip16(InBuf, 0);
NTCPDataSize = BlockLength;
DecodeBufPos += 16;
//Logging.LogTransport( string.Format( "NTCPReader block length: {0} bytes [0x{0:X}]", BlockLength ) );
if (BlockLength == 0)
{
// Time Sync
var result = new BufLen(InBuf, 0, 16);
BlockLength = -1;
return(result);
}
return(ReadBlock());
}
private void SendSessionCreated()
{
SendMessage(
SSUHeader.MessageTypes.SessionCreated,
Session.MyRouterContext.IntroKey,
Session.MyRouterContext.IntroKey,
(start, writer) =>
{
writer.Write(Y.Key);
AAddr = Session.RemoteEP.Address.GetAddressBytes();
writer.Write8((byte)AAddr.Length);
writer.Write(AAddr);
APort = BufUtils.Flip16((ushort)Session.RemoteEP.Port);
writer.Write16(APort);
writer.WriteFlip32(RelayTag);
Session.SignOnTimeB = BufUtils.Flip32(SSUHost.SSUTime(DateTime.UtcNow));
writer.Write32(Session.SignOnTimeB);
var sign = I2PSignature.DoSign(Session.MyRouterContext.PrivateSigningKey,
Request.X, Y.Key,
new BufLen(AAddr), (BufLen)APort,
Request.Address, (BufLen)BufUtils.Flip16((ushort)Session.MyRouterContext.UDPPort),
(BufLen)RelayTag, (BufLen)Session.SignOnTimeB);
var signstart = new BufLen(writer);
writer.Write(sign);
var padding = BufUtils.Get16BytePadding(writer - signstart);
writer.Write(BufUtils.Random(padding));
var cipher = new CbcBlockCipher(new AesEngine());
var signcryptbuf = new BufLen(signstart, 0, writer - signstart);
cipher.Init(true, Session.SharedKey.ToParametersWithIV(new BufLen(start, 16, 16)));
cipher.ProcessBytes(signcryptbuf);
return(true);
});
}