This is the official Elrond wallet app for the Ledger Nano S.

Before proceeding with the installation, please make sure your device is up-to-date with the latest firmware.

Furthermore, you need to configure your OS to enable the connectivity with the Nano S device. For example, on Linux, you have to issue the following command:

wget https://raw.githubusercontent.com/LedgerHQ/udev-rules/master/add_udev_rules.sh | sudo bash

For other platforms, please have a look on this article from ledger.com.

pip3 install --user --upgrade --no-cache-dir ledgerblue

Note that python3 and pip3 are required in order to install ledgerblue.

Download the latest *.hex file from our releases page. If wget is available on your machine, then:

export APP_VERSION=1.0.17

wget https://github.com/ElrondNetwork/ledger-elrond/releases/download/v${APP_VERSION}/elrond-ledger-app-v${APP_VERSION}.hex

Now that you've downloaded the app and ledgerblue package is available, let's load the app on the device:

export APP_VERSION=1.0.17

python3 -m ledgerblue.loadApp --curve ed25519 --path "44'/508'" --appFlags 0x240 --tlv --targetId 0x31100004 --targetVersion=1.6.0 --delete --appName Elrond --appVersion ${APP_VERSION} --fileName elrond-ledger-app-v${APP_VERSION}.hex --dataSize 64 --icon "010000000000ffffffffffffffffff37ecdffbeff7f7eff7eff7eff7efeff7dffb37ecffffffffffff"

To remove the app from the device, issue the following command:

python3 -m ledgerblue.deleteApp --targetId 0x31100004 --appName Elrond

In order to perform whitelisted tokens operation, first an ESDT data providing is needed.

A concatenation between the following fields has to be sent by using INS 0x08: ticker len, ticker, id_len, id, decimals, chain_id_len, chain_id, signature

The signature is generated by signing the sha256 hash of ticker len, ticker, id_len, id, decimals, chain_id_len, chain_id with a private key managed by Elrond team.

The testApp folder contains a sample Go application to prepare Elrond transactions, which you can sign using the Ledger device. The signed transactions are then dispatched to the Elrond Proxy, in order to be processed and saved on the blockchain.

Download the latest ElrondTestApp* file from our releases page. Linux, MacOS and Windows are supported. Then execute the file while the device is connected to your computer. You will be requested to enter transaction details and then continue with the signing step.

Before running the application, you need to mark it as executable on Linux / MacOS:

chmod +x ./ElrondTestApp*

Also please note that on Windows you might receive the Unknown publisher warning from the UAC facility when you first run the testApp.

To build locally, you must first clone this repository, then set up the development environment:

$ source prepare-devenv s

This could take a while. Then, load the app as follows:

$ make load

To remove the app from the device, run:

$ make delete