This repo is archived as of June 29, 2020 but made available for historical record. If you are looking for the maintained version of this code please see @cosmos/ledger-cosmos.

Ledger-Cosmos

This repository contains:

• Ledger Nano S/X Cosmos BOLOS app
• Specs / Documentation
• C++ unit tests
• Fuzzing scripts

Source code for apps is linked as submodules to allow for Ledger's build infrastructure.

For development purposes, this repo is recommended as it includes unit tests, tools, etc.

Installing

Cosmos app

The Cosmos app is already available in Ledger Live. Our preferred and recommended hardware wallet!

• Open Ledger Live and go to Settings (gear icon on the right):

• Enable developer mode (last option):

• Now go back to manager and search for Cosmos:

Building

The following document describes how to build the apps: Build instructions

Fuzzing

The following document provides more information on fuzzing the user app: Fuzzing

Specifications

Cosmos App

• APDU Protocol
• Transaction format