hw-transport-webauthn

Github, Ledger Devs Slack

@ledgerhq/hw-transport-webauthn

Allows to communicate with Ledger Hardware Wallets.

[Web] (WebAuthn) – WebAuthn api. check browser support.

Known limitation

There is a "blink" at each time there is a communication with the device due to WebAuthn. WebAuthn is meant for authentification and we use it for communication, ideally prefer WebUSB.

API

Table of Contents

• TransportWebAuthn
  • Examples
  • exchange
    • Parameters
  • setScrambleKey
    • Parameters
    • Examples

TransportWebAuthn

Extends Transport

WebAuthn Transport implementation

Examples

import TransportWebAuthn from "@ledgerhq/hw-transport-webauthn";
...
TransportWebAuthn.create().then(transport => ...)

exchange

Exchange with the device using APDU protocol.

Parameters

• apdu Buffer

Returns Promise<Buffer> a promise of apdu response

setScrambleKey

A scramble key is a string that xor the data exchanged. It depends on the device app you need to exchange with. For instance it can be "BTC" for the bitcoin app, "B0L0S" for the dashboard.

Parameters

• scrambleKey string

Examples

transport.setScrambleKey("B0L0S")