DogecoinTerminal

DogecoinTerminal is a multi-user offline dogecoin wallet made using Monogame and libdogecoin for maximum portability.

What you'll need:

DogecoinTerminal is designed to run on An Always Offline Device with a Camera, so you'll need:

• An Always Offline Device with a Camera
• An Android Device with a Camera. (for QRDoge)
• An Dogecoin node (for QRDoge)

Important Notes

• DogecoinTerminal cannot send transactions out of the box (read more on 'Bridging to the Network')
• Loading old keys not currently supported! You can load them by hand, but getting UTXOs (balance) could also become annoying.

Security

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Security comes from the device being offline, your ability to keep it offline, and your ability to keep it physically secure.

Currently, wallet data (mnemonics/utxos) is encrypted when stored but it would be trivial to decrypt for a motiviated actor.

Different network bridges might provide different levels of security.

QRDoge isn't pretty, but you can observe the data before consuming it, which is useful in it's own right.

Settings

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• fee-per-utxo (default: 0.02): Used to calculate network fees, fee-per-utxo * count(UTXOsUsedInTransaction) = networkFee
• dust-limit: (default: 0.001): The dust limit used in transaction creation.

Bridging to the Network

DogecoinTerminal cannot send transactions on it's own, it can only sign them.

To send transactions, you'll need a bridge. (an implimentation of IDogecoinService)

Currently there is one bridge, DogecoinTerminal.QRDoge.QRDogeService.

It uses QR codes to pass messages back and forth with it's companion app:

QRDoge

A rudamentary android companion app that acts as a bridge between your Dogecoin Core Node and DogecoinTerminal.

Creating your own Bridge

To create your own bridge, create a new project with a reference to DogecoinTerminal.Common and impliment the IDogecoinService interface.

	//NOTE: not a final interface, only an example.
	public interface IDogecoinService
	{
		void OnSetup(Action<bool> callback);

		void OnNewAddress(string address, string pin, Action<bool> callback);

		void OnDeleteAddress(string address, string pin, Action callback);

		void UpdatePin(string address, string oldPin, string newPin, Action<bool> callback);

		//These are the only two functions that are required to send/receive transactions.
		//pin string param is likely going away, nothing depends on it currently.
		void GetUTXOs(string address, string pin, Action<IEnumerable<UTXOInfo>> callback);

		void SendTransaction(string transaction, string pin, Action<bool> callback);
	}

The DogecoinTerminal.Common.QRDoge.QRDogecoinService class is a good reference on creating a service.