public void TestGarlicCreate()
{
var ls = new I2PDate(DateTime.Now + TimeSpan.FromMinutes(5));
var origmessage = new DeliveryStatusMessage(I2NPMessage.GenerateMessageId());
var bigmessage = new DataMessage(new BufLen(BufUtils.RandomBytes(14 * 1024)));
var garlic = new Garlic(
new GarlicClove(
new GarlicCloveDeliveryLocal(origmessage),
ls),
new GarlicClove(
new GarlicCloveDeliveryLocal(bigmessage),
ls)
);
var egmsg = Garlic.EGEncryptGarlic(
garlic,
Public,
new I2PSessionKey(),
null);
var origegdata = I2NPMessage.Clone(egmsg);
var origegdata2 = I2NPMessage.Clone(egmsg);
// Decrypt
var(aesblock, sessionkey1) = Garlic.EGDecryptGarlic(origegdata, Private);
var newgarlic = new Garlic((BufRefLen)aesblock.Payload);
var g1 = new BufLen(garlic.ToByteArray());
var g2 = new BufLen(newgarlic.ToByteArray());
Assert.IsTrue(g1 == g2);
// Retrieve
var(aesblock2, sessionkey2) = Garlic.RetrieveAESBlock(origegdata2, Private, null);
newgarlic = new Garlic((BufRefLen)aesblock2.Payload);
g1 = new BufLen(garlic.ToByteArray());
g2 = new BufLen(newgarlic.ToByteArray());
Assert.IsTrue(g1 == g2);
Assert.IsTrue(sessionkey1 == sessionkey2);
}
private void SendLeaseSetUpdateGarlic(
I2PIdentHash ffdest,
I2PPublicKey pubkey,
I2PLeaseSet ls,
uint token)
{
// If greater than zero, a DeliveryStatusMessage
// is requested with the Message ID set to the value of the Reply Token.
// A floodfill router is also expected to flood the data to the closest floodfill peers
// if the token is greater than zero.
// https://geti2p.net/spec/i2np#databasestore
var outtunnel = TunnelProvider.Inst.GetEstablishedOutboundTunnel(false);
var replytunnel = ls.Leases.Random();
if (outtunnel is null || replytunnel is null)
{
Logging.LogDebug($"SendLeaseSetUpdateGarlic: " +
$"outtunnel: {outtunnel}, replytunnel: {replytunnel?.TunnelGw?.Id32Short}");
return;
}
var ds = new DatabaseStoreMessage(ls);
var delivstatus = new DeliveryStatusMessage(token);
// As explained on the network database page, local LeaseSets are sent to floodfill
// routers in a Database Store Message wrapped in a Garlic Message so it is not
// visible to the tunnel's outbound gateway.
var garlic = new Garlic(
new GarlicClove(
new GarlicCloveDeliveryLocal(ds)),
new GarlicClove(
new GarlicCloveDeliveryTunnel(delivstatus, replytunnel.TunnelGw, replytunnel.TunnelId))
);
var egmsg = Garlic.EGEncryptGarlic(garlic, pubkey, new I2PSessionKey(), null);
outtunnel.Send(
new TunnelMessageRouter(
egmsg,
ffdest));
}
public void TestEncodeDecodeEG()
{
var m1 = new DeliveryStatusMessage(0x4321);
var m2 = new DeliveryStatusMessage(0xa3c2);
var garlic = new Garlic(
new GarlicClove(
new GarlicCloveDeliveryDestination(
m1,
Destination.IdentHash)),
new GarlicClove(
new GarlicCloveDeliveryDestination(
m2,
Destination.IdentHash))
);
// No tags
var cg = Garlic.EGEncryptGarlic(garlic, Public, new I2PSessionKey(), null);
var egdata = I2NPMessage.Clone(cg);
var(aesblock, sk) = Garlic.EGDecryptGarlic(egdata, Private);
var g2 = new Garlic((BufRefLen)aesblock.Payload);
Assert.IsTrue(BufUtils.Equal(garlic.ToByteArray(), g2.ToByteArray()));
// With tags
var tags = new List <I2PSessionTag>();
for (int i = 0; i < 8; ++i)
{
tags.Add(new I2PSessionTag());
}
cg = Garlic.EGEncryptGarlic(garlic, Public, new I2PSessionKey(), tags);
egdata = I2NPMessage.Clone(cg);
(aesblock, sk) = Garlic.EGDecryptGarlic(egdata, Private);
g2 = new Garlic((BufRefLen)aesblock.Payload);
Assert.IsTrue(BufUtils.Equal(garlic.ToByteArray(), g2.ToByteArray()));
}