README

DHT is a distributed hash table based on the Kademlia paper:
https://pdos.csail.mit.edu/~petar/papers/maymounkov-kademlia-lncs.pdf.

It also uses the S/Kademlia extension "crypto puzzles" to impede Eclipse and
Sybil attacks (see the PROTOCOL, section 14 "Node ID Generation" for details).
S/Kademlia paper: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.68.4986&rep=rep1&type=pdf

DHT also includes many other security measures:
	- Node IDs are Ed25519 keypairs.
	- All messages are signed by the node's private key.
	- All messages are encrypted with the recipient's public key.
	- Fixed-size (UDP) messages are padded to avoid leaking message type.

The network is completely decentralized. For more details read the PROTOCOL.

To operate a node:

1. Install golang: golang.org/dl

On Linux distributions like Ubuntu, Fedora, etc. you should be able to install a
"golang" package through your package manager.

2. Download dht with:

	go get -u github.com/esote/dht/cmd/dht

This will create a "dht" executable in your go/bin folder. Add ~/go/bin to PATH.

3. Create a working directory, for example

	mkdir /tmp/dht

3. Start a node

	dht /tmp/dht start PORT

The program will ask for a password to encrypt the node's private key.

4. Stop a node

	dht /tmp/dht stop

5. Bootstrap another node

	dht /tmp/dht bootstrap ID IP:PORT

		Bootstrap a node, ID must be full base64 code, IP must be an
		IPv4 or IPv6 address (hostnames not allowed).

6. Store a file on the network

	dht /tmp/dht store /PATH/TO/FILE

7. Load a file from the network

	dht /tmp/dht load KEY /PATH/TO/OUTPUT

		KEY must be full base64 code.