This started as a monero fork of the OG seedsigner https://github.com/SeedSigner/seedsigner but is now considdered a completely seperate and independent code base
The project aims to make it easy for anybody to make a dedicated offline signing device out of low-cost commodity computer components (raspberry pi zero). This helps in reducing the need to trust hardware verndors. The most private hardware wallet, is the only only you know about.
Supplychain poses a significant attack vector to hardware manufacturers, this threat is exacerbated when dealing with cryptocurrency devices. Monerosigner offers a DIY hardware wallet built out of easy* to source over the counter general hobbyist parts. This makes it easier for users to self custody their keys on their own devices.
Additional information about the project can be found at seedsigner.com.
You can follow @MoneroSigner on Twitter for the latest project news and developments.
If you have specific questions about the project please reaach out via twitter DM, Github issues.
- Generate seed from dice rolls
- Generate seed from mnemonic phrase
- Import seed from QR code
- Generate Addresses from accounts
- Load unsigned transactions via QR
- Sign unsigned transactions
- Upload signed transactions to companion app via QR codes
- Generate view only wallet & Export
- Transfer unsigned transactions via QR code
- Transfer signed transactions and upload to network
- Data transfer standard for QR codes with a focus on lower end cameras and screens
- Variable data sizes with different frame rates
- Application agnostic
- Built for compatibility with monerosigner companion app.
- Device takes up to 60 seconds to boot before menu appears (be patient!)
- Always test your setup before transfering larger amounts of Monero
- Slightly rotating the screen clockwise or counter-clockwise should resolve lighting/glare issues
- If you think SeedSigner adds value to the Monero ecosystem, please help us spread the word! (tweets, pics, videos, etc.)
*** This is still a work in progress. Once a stable version is out I can proceed to add more features ***
To build a MoneroSigner, you will need:
- Raspberry Pi Zero (preferably version 1.3 with no WiFi/Bluetooth capability, but any Raspberry Pi 2/3/4 or Zero model will work, Raspberry Pi 1 devices will require a hardware modification to the Waveshare LCD Hat, as per the instructions here)
- Waveshare 1.3" 240x240 pxl LCD (correct pixel count is important, more info at https://www.waveshare.com/wiki/1.3inch_LCD_HAT)
- Pi Zero-compatible camera (tested to work with the Aokin / AuviPal 5MP 1080p with OV5647 Sensor)
Notes:
- You will need to solder the 40 GPIO pins (20 pins per row) to the Raspberry Pi Zero board. If you don't want to solder, purchase "GPIO Hammer Headers" for a solderless experience.
- Other cameras with the above sensor module should work, but may not fit in the Orange Pill enclosure
- Choose the Waveshare screen carefully; make sure to purchase the model that has a resolution of 240x240 pixels
This is for developer use only atm The current setup assumes you are a developer and as such as enable an ssh server. This is done to help enable a developemnt enviroment from a remote ssh session. This is done to help developers quickly test and restest new changes without requiring reflashing the sd card. For obvious reasons this should not be used to protect real funds as a production build would not have networking enabled nor an ssh server (especially one locked down with a simple user:pass)
The developer instructions assume you are using a raspberry pi model other than a zero. I chosse to develop on a raspberry pi instead of a pi zero because of the hardwired ethernet cable.
The manual installation is different than seedsigner. Developer builds target rasbian based on ddebian version 12.0 (codenamed bookworm).
https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2023-12-11/2023-12-11-raspios-bookworm-armhf-lite.img.xz Raspberry Pi OS Lite Release date: December 11th 2023 System: 32-bit Kernel version: 6.1 Debian version: 12 (bookworm) sha256sum: 5df1850573c5e1418f70285c96deea2cfa87105cca976262f023c49b31cdd52b 2023-12-11-raspios-bookworm-armhf-lite.img.xz
Us your prefered application such as DD or Disks utility to write the image to the sd card. (This will overide the whole sd card)
Create a blank ssh file in the boot partion of your sd card. This enables the ssh server on your pi.
Next you need to create a user password for the user. (By default there is no password set for the pi user. Without a password ssh can't log in). Instructions taken from here: https://www.raspberrypi.com/documentation/computers/configuration.html#configuring-a-user Configure a user manually At the root of your SD card, create a file named userconf.txt.
This file should contain a single line of text, consisting of :: your desired username, followed immediately by a colon, followed immediately by an encrypted representation of the password you want to use.
For example. If you want to use the password raspberry for the user pi you would run the following command
echo 'raspberry' | openssl passwd -6 -stdin
Our example output: $6$HdV3bbnqr0hwKEfI$h3kjQVvgLeNz24kr5n4LFq9eMsnJ1H0QRCgnUrYolZWnSIj.aqK9wLKj3fJNn0jaL9VMiXbI9oH8vbhgoTeRK1 (keep in mind that running the command again would give you a different string because of the random salt added)
Then we would take that output and insert it into the serconf.txt <password> placeholder.
The userconf.txt file would look like so:
pi:$6$HdV3bbnqr0hwKEfI$h3kjQVvgLeNz24kr5n4LFq9eMsnJ1H0QRCgnUrYolZWnSIj.aqK9wLKj3fJNn0jaL9VMiXbI9oH8vbhgoTeRK1
once you ssh onto the box pleas run these coommands:
sudo apt-get update
sudo apt-get upgrade
You might need to enable the spi inteface through raspi-config:
Type : sudo raspi-config
Use the menu to go to : Inerface Options -> SPI -> Enable (It asks you if you want to enable. Select "yes").
Raspberry Pi OS Bullseye and later images by default run the libcamera camera stack, which is required for Picamera2. You can check that libcamera is working by opening a command window and typing:
rpicam-hello
You will get text output from your camera in the terminal. If you get an error your camera physical connection might not be connected or you might need to troubleshoot the hardware.
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo apt-get install python3-numpy
sudo pip3 install spidev
git clone https://github.com/Monero-HackerIndustrial/MoneroSigner
cd MoneroSigner
To start the application:
cd into the src folder:
cd src
Then run it with python
python3 main.py