Kusama Ledger App

The following project has been funded by the Web3 Foundation. Thanks!

We are happy to announce Ledger Nano S and X support for Runtime 1062. Polkadot.JS is also integrated (Thanks Jaco!) We are preparing the documentation to submit to Ledger for publication in Ledger Live.

Please notice:

Kusama is an early, unaudited and unrefined release of Polkadot". EXPECT CHAOS.
Do not use a Ledger device with funds for development purposes.
Have a separate and marked device that is used ONLY for development and testing

Milestone 1 - Warnings

The app has not been reviewed or published by Ledger. At this stage, we recommend using the app only for testing purposes.

Overview

Polkadot.js has already integrated Ledger support.

At this stage:

Only Ed25519 signatures are supported and derivation is based on Ed25519+BIP32. (sr25519 coming soon)
Support 140 methods. There are a few methods that are still not supported.
We are looking at having full mnemonic portability between subkey and Ledger devices.
Integrated Zemu tests and test case generation.
JS integration library

Basic Usage

Enable Ledger support

Ledger support is not enabled by default

First, go to Settings (on the left)
Change “Manage Hardware Connections” to “Attach Ledger via WebUSB”
Click Save

Retrieve your address

Go to accounts (left)
Open the Kusama app in your device
Click “Query Ledger” at the top
Your address will be retrieved from the device and shown in the screen

Confirm your address

Go to accounts (left)
Open the Kusama app in your device
You can see your address in the device by clicking on the gear and choosing “Show address on hardware device”
The device will show your address in the screen. You can confirm it is the same that the one shown in the website.