npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@bctest/bsc-ledger-bridge-keyring

v0.6.9

Published

A MetaMask compatible keyring, for ledger hardware wallets

Downloads

11

Readme

eth-ledger-bridge-keyring CircleCI

An implementation of MetaMask's Keyring interface, that uses a Ledger hardware wallet for all cryptographic operations.

In most regards, it works in the same way as eth-hd-keyring, but using a Ledger device. However there are a number of differences:

  • Because the keys are stored in the device, operations that rely on the device will fail if there is no Ledger device attached, or a different Ledger device is attached.

  • It does not support the signMessage, signTypedData or exportAccount methods, because Ledger devices do not support these operations.

  • Because extensions have limited access to browser features, there's no easy way to interact wth the Ledger Hardware wallet from the MetaMask extension. This library implements a workaround to those restrictions by injecting (on demand) an iframe to the background page of the extension, (which is hosted here.

The iframe is allowed to interact with the Ledger device (since U2F requires SSL and the iframe is hosted under https) using the libraries from LedgerJS hw-app-eth and hw-transport-u2f and establishes a two-way communication channel with the extension via postMessage.

The iframe code it's hosted in the same repo under the branch gh-pages and it's being served via github pages. In the future we might move it under the metamask.io domain.

Usage

In addition to all the known methods from the Keyring class protocol, there are a few others:

  • isUnlocked : Returns true if we have the public key in memory, which allows to generate the list of accounts at any time

  • unlock : Connects to the Ledger device and exports the extended public key, which is later used to read the available ethereum addresses inside the Ledger account.

  • setAccountToUnlock : the index of the account that you want to unlock in order to use with the signTransaction and signPersonalMessage methods

  • getFirstPage : returns the first ordered set of accounts from the Ledger account

  • getNextPage : returns the next ordered set of accounts from the Ledger account based on the current page

  • getPreviousPage : returns the previous ordered set of accounts from the Ledger account based on the current page

  • forgetDevice : removes all the device info from memory so the next interaction with the keyring will prompt the user to connect the Ledger device and export the account information

Testing

Run the following command:

yarn test

Attributions

This code was inspired by eth-ledger-keyring and eth-hd-keyring