univocity/envlp-cardano-wallet

envlp-cardano-wallet's Issues

Add support for Ledger and Trezor devices

Investigate how to enable support for Ledger hardware wallets. The client code could look something like this:

LedgerWallet wallet = server.wallets()
    .createOrGet("myLedgerWallet")
    .shelley()
    .fromLedger();

It looks like there is some interaction with the following endpoint of the cardano-wallet:

https://input-output-hk.github.io/cardano-wallet/api/edge/#tag/Keys

The library already has code that interacts with this endpoint, but it's not clear yet how that is used to enable communication with hardware wallets.

	public void testShelleyWalletGetPublicKey() {
		assertEquals(shelleyWallet.keys().externalUtxoPublicKey(0), "addr_vk1pqkrxdfnuq43gkjq5qdgfyuvj29569njywst5w46lkzzrjazy5rselayhc");
		assertEquals(shelleyWallet.keys().internalUtxoPublicKey(0), "addr_vk1k96j9609ukthxtnq0te87yh7jvhq2d6q6vkyzwmgdw84f9uk3xdq2kh9hy");
		assertEquals(shelleyWallet.keys().mutableAccountPublicKey(0), "stake_vk13s9ax57ttljfuak6w95lae2vvuwp29zhvvyu7t3uj343kv0zuhmq7lq973");
		assertEquals(shelleyWallet.keys().multiSigPublicKey(0), "script_vk129zt5mee3qdzjlf2980yw02aq9q7e2alpqzc8artwdnzt2mchj9svkhawu");
	}

This looks like the way to go:

• https://github.com/vacuumlabs/cardano-hw-cli

There are also a few projects in the cardano-foundation repository that seem to be used by daedalus:

• https://github.com/cardano-foundation/ledgerjs-hw-app-cardano

• https://github.com/cardano-foundation/ledger-app-cardano

I think the easiest way to go about this is to check out what daedalus does by inspecting its code, otherwise simply getting the cardano-hw-cli and invoking the commands via CLI should work just fine.