Use an air-gapped Raspberry Pi Zero to sign for Bitcoin transactions! (and do other cool stuff)

Last update: Dec 31, 2022

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Overview

Hello World!

Build your own offline, airgapped Bitcoin transaction signing device for less than $35! Also generate seed word 24 or generate a seed phrase from dice rolls!

The code is designed to ultimately be run on a Raspberry Pi Zero (version 1.3 with no wireless capability) with a Waveshare 1.3" 240x240 pxl LCD (more info at https://www.waveshare.com/wiki/1.3inch_LCD_HAT) and a Pi Zero-conpatible camera (tested to work with the Aokin 5MP 1080p with OV5647 Sensor Video Camera Module; other brands with that sensor module may work as well). Choose the Waveshare screen carefully (there are several similar models); make sure to purchase the model that has a resolution of 240x240 pixels.

The easiest way to get the signer up and running is to downloaded the "seedsigner_0_1_0.zip" file in the current release, extract the "seedsigner_0_1_0.img" file, and write it to a MicroSD card (at least 4GB in size or larger). Then install the MicroSD in the assembled hardware and off you go.

Newest Added Features:

Native Segwit Multisig Xpub generation w/ QR display
Scan and Parse transaction data from animated QR codes
Sign transactions & transfer xpub data using animated QR codes
New extensible menu system
Improved letter entry responsiveness
Various UX improvements
Various code optimizations
Project donation information
ORANGE text! (looks great with orange pill enclosure!)

Considerations:

BUG ALERT: Transaction confirmation screen includes change address in the total spending amount; transactions are processed by Specter correctly after signing. Will be corrected in the next release.
Built to be compatible with Specter-desktop Bitcoin wallet
Be patient, it takes a couple of minutes for the menu to come up after applying power to the Pi Zero (when you see the "static" you're almost there!)
Confirmed bug: a "bad" seed phrase that fails checksum validation will crash the app and you will need to restart the Pi
For now, ALWAYS opt to use animated QR codes in Specter-desktop
Mainnet is only option; test with SMALL AMOUNTS of bitcoin
Currently ONLY generating Native Segwit Multisig Xpubs
Scanning animated QRs into a PC is tricky, be aware of ambient light, glare and focus
(Holding the screen upside-down significantly reduces glare for some reason)
Display text is small; comes with 240x240 territory but ever trying to optimize
Check out our "seedsigner" telegram community for community help / feedback: (https://t.me/joinchat/GHNuc_nhNQjLPWsS)
If you think SeedSigner adds value to the Bitcoin ecosystem, please help me spread the word! (tweets, pics, videos, etc.)

Coming Improvements/Functionality:

Add support for single QR codes
Support for 12 word seeds
Reduce signed xpub data to decrease required QR images
Support for single signature Xpub key generation
Select from different display colors
Generate seed from internal entropy (maybe)
Other optimizations based on user feedback!

The software can also be installed using an internet-connected Raspberry Pi 2/3/4 or Zero W are as follows:

Install the Raspberry Pi Lite operating system (https://www.raspberrypi.org/software/operating-systems/) on a MicroSD card and install the card in a Raspberry Pi 2/3/4 or Zero W.

Connect a keyboard & monitor, or SSH into the Pi if you're familiar with that process.

sudo raspi-config

(set your localization options, configure WiFi if necessary, but most important: navigate to the "interface options" and enable the "SPI" interface; also make sure to enable the camera interface in raspi-config)

Reboot when prompted within the raspi-config interface

Install these dependencies:

sudo apt-get update
sudo apt-get install wiringpi
sudo apt-get install python3-pip
sudo apt-get install python3-numpy
sudo apt-get install python-pil
sudo apt-get install libopenjp2-7
sudo apt-get install ttf-mscorefonts-installer
sudo apt-get install git
sudo apt-get install python3-opencv
sudo apt-get install libzbar0
sudo apt-get install python3-picamera

Install this:

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.60.tar.gz
tar zxvf bcm2835-1.60.tar.gz
cd bcm2835-1.60/
sudo ./configure
sudo make && sudo make check && sudo make install
cd ..

Install these python dependencies:

sudo pip3 install --verbose spidev
sudo pip3 install --verbose RPi.GPIO
sudo pip3 install --verbose pillow
sudo pip3 install --verbose embit
sudo pip3 install --verbose qrcode
sudo pip3 install --verbose imutils
sudo pip3 install --verbose pyzbar
sudo pip3 install --verbose argparse
sudo pip3 install --verbose imutils

Download SeedSigner

sudo git clone https://github.com/SeedSigner/seedsigner

Modify the system config to run SeedSigner at boot:

sudo nano /etc/rc.local add sudo python3 /home/pi/seedsigner/main.py & to the line above exit 0

Use Control + O, then [enter], to write the file. Then use Control + X, to exit the program.

(Optional) Modify the system swap configuration to disable virtual memory:

sudo nano /etc/dphys-swapfile add CONF_SWAPSIZE=100 to CONF_SWAPSIZE=0

Use Control + O, then [enter], to write the file. Then use Control + X, to exit the program.

To shut down the pi:

sudo shutdown --poweroff now

Now either move the MicroSD card to a Pi Zero 1.3 with the 1.3-inch LCD Hat and camera installed, or the LCD Hat will also run fine on a Raspberry Pi 2/3/4 or Zero W; just remember to disable networking if you want to run the software in isolation.

It will take a couple of minutes after the Pi is powered on for the GUI to launch -- be patient!

Comments

Seed generated with dice rolls on 0.4.5 does not match seed generated with the coldcard rolls.py script

With the introduction of https://github.com/SeedSigner/seedsigner/pull/109 I am following the guide on https://coldcard.com/docs/verifying-dice-roll-math to verify that the SeedSigner 0.4.5 and the Coldcard produce the same seed and I am seeing some differences.

Steps to reproduce

On SeedSigner 0.4.5 go to Seed Tools > Generate Seed with Dice

Enter 45 twos, followed by 54 fives. This will give you a seed 1. garden 2. uphold ... 23. feature 24. wave.

Perform the same using rolls.py and you will see that the seeds match:

% echo 222222222222222222222222222222222222222222222555555555555555555555555555555555555555555555555555555 | python3 rolls.py 
5fbdda0295cdc4c682fbb5eba6d704b90f281a45f6eab283e8b7c86abab4d50f

   1: garden
   2: uphold
   3: level
   4: clog
   5: sword
   6: globe
   7: armor
   8: issue
   9: two
  10: cute
  11: scorpion
  12: improve
  13: verb
  14: artwork
  15: blind
  16: tail
  17: raw
  18: butter
  19: combine
  20: move
  21: produce
  22: foil
  23: feature
  24: wave

Repeat the test above, but replace the last five with a six. The SS will display

1. whale 2. monitor ... 23. capital 24. owner

However, this time rolls.py differs:

% echo 222222222222222222222222222222222222222222222555555555555555555555555555555555555555555555555555556 | python3 rolls.py 
82c39211f153aea293a41d03ea77c619170d3f552d378dd69467f6c5eea58f12

   1: lizard
   2: broken
   3: love
   4: tired
   5: depend
   6: eyebrow
   7: excess
   8: lonely
   9: advance
  10: father
  11: various
  12: cram
  13: ignore
  14: panic
  15: feed
  16: plunge
  17: miss
  18: regret
  19: boring
  20: unique
  21: galaxy
  22: fan
  23: detail
  24: fly

Expected output

I would expect that the seed generated by SS 0.4.5 and rolls.py match for all dice rolls.

opened by eriknylund 12

Manually enter 24 word seed not saved

When I manually enter 24 word seed in "Temp Seed Storage", the seed is not saved, instead I get returned to "Temp Seed Storage" page

opened by jessjamesjones 10
Correct last word

This addresses #132. By entering an additional random word, the user provides the remaining entropy, and then 4-8 bits of their provided entropy are overwritten by the checksum.

I've lightly tested this, but have no idea what I'm doing with UI/UX :)

opened by brandonblack 9
Add Feature: Fast Automatic Seed Words Input

It would be nice to add a feature that allows for easy and fast input of the 12/24 seed words. For instance, by using the camera to scan a paper with the written words or its BIP39 corresponding number and applying OCR or a template made-for-purpose that would make the recognition easier. This way the user can keep the seed stored safely and once needed to sign, he or she would just present it in front of the camera for automatic input.

This could be an option, so users could choose to enter the words manually as it is done today, or via this new, fast, automatic method.

opened by carlosmassa 9
Verify Address Issue With Nunchuk On Testnet Only

When I use Seed Signer with Nunchuck on mainnet, everything works great!

But when I switch to testnet, export a xpub into Nunchuk, create a wallet with that xpub, I can't verify an address. The Seed Signer just keeps looking for that address counting up into the thousands of addresses until I tell it to stop looking.

This verify feature works just fine for me when Nunchuk is connect to a mainnet wallet. The issue is only on testnet. The Seed Sign knows it's looking for a Native Segwit Testnet Address, it just can't find it.

The fingerprint and derivation path on the Seed Signer and Nunchuk all match up, so I don't understand why the Seed Signer can't find and verify the address.

My Seed Signer version is 0.5.1

bug

opened by BitcoinAscent 7
Randomise dice reset

At present, the selected dice value resets to 5 after each input of a dice roll.

To minimise the number of user inputs during seed generation via this method, the default value should randomly oscillate between 2 and 5. From the default 5 location, two inputs are required to reach 1/3 (but only one input to reach 4/6), whereas from a default 2 location two inputs are required to reach 4/6 (but only one to 1/3). By randomly selecting either 2/5 default with 50/50 probability for either selection, statistically the number of user inputs required will be minimised during the process of seed generation by dice rolls.

This PR proposes a very simple method to randomly select a 2/5 default, based on the value of the previous input. This method is sufficiently random to benefit the user provided that the assumption that the dice used to generate the seed is unbiased, is accurate.

opened by mandelbit 7
Refactoring/Extending BIP-85 PR
I wasn't sure how to build upon @jase100k's PR #194 so had to fork it and submit this as a separate PR.

DRY optimizations to eliminate redundant SeedWordsWarningView and SeedWordsView in the BIP85 flow (merges the BIP85 flow into the existing review flow).

Adds support to continue with the child seed into the backup verification flow.

Bugfix to prevent the KeyboardScreen from trying to submit when no input is provided.

UI tweak on keyboard layout for BIP85 child index input.

Naming convention tweaks to match existing standards.

Changes ordering of where the BIP85 options appear in Settings and SeedOptions.

enhancement
opened by kdmukai 6
Split symbols keyboard
Replaces #267. Fixes #266.

Props to @initfortherekt for the original PR (#267) to address this issue which kicked off discussion which led to these more involved changes.

Adds the missing symbols, per #266.

Splits the symbols across two swappable keyboards.

The new swap cycle is: 123 -> !@# -> *[] and then circles back to 123.

The most common symbols (punctuation, most human-friendly) are on the first keyboard, mostly following the layout across the top of a typical physical keyboard).

Less common symbols (more math-related, less human-friendly) are on the second keyboard and will hopefully almost never need to be used in a typical passphrase.

Changes to ALL Keyboard instances across the code:

Changes how the additional_keys are displayed to set them apart from the normal keys and to reduce confusion with the < and > cursor position keys.

Further TODO items for future contributors:

Render the additional_keys with icons, especially the cursor position keys.

Add a popup symbol name when hovering over a symbol. Could be temporarily added to the current position in the TextEntryDisplay:

# As you navigate across the symbols: yourPassphrase[dollar sign] yourPassphrase[percent] yourPassphrase[ampersand] # Now click to lock that symbol in: yourPassphrase&

Rationale: Certain symbols are just hard to read clearly, especially ` vs ' and ~ vs -. An explicit "backtick", "tilda", etc readout would hopefully completely eliminate any such errors.
opened by kdmukai 6

Bug signing 1-of-2 multisig transaction when recipient is same wallet

Both keys are SeedSigner testnet devices in Specter.

Transaction is sending coins back to a new addr in the same wallet.

SeedSigner is hanging on "Parsing PSBT"

Traceback (most recent call last):
  File "main.py", line 12, in <module>
    controller.start(DEBUG)
  File "/home/pi/seedsigner/controller.py", line 69, in start
    self.show_main_menu()
  File "/home/pi/seedsigner/controller.py", line 91, in show_main_menu
    ret_val = self.show_sign_transaction()
  File "/home/pi/seedsigner/controller.py", line 339, in show_sign_transaction
    signer.parse_psbt(raw_pbst)
  File "./helpers/psbt_signer.py", line 76, in parse_psbt
    (self.change, self.fee, self.spend, self.destinationaddress) = PSBTSigner.change_fee_spend_amounts(self.tx, self.inp_amount, policy, self.seed_storage.get_network())
  File "./helpers/psbt_signer.py", line 260, in change_fee_spend_amounts
    return (change, fee, spend, destinationaddress)
UnboundLocalError: local variable 'destinationaddress' referenced before assignment

I can confirm that the same device/seed works fine signing a tx for an address in a different wallet. So it's just the self-send/cycling coins that seems to cause problems.

opened by kdmukai 6

Create online build instructions (without needing a 2nd Pi)
I was able to get something like this working on a different project, I need to modify it for this one and then add to readme if it works.

apt-get install replacement

Online:

$ mkdir apt && cd apt # wget all packages from https://packages.debian.org

Offline (after copying files over):

$ sudo dpkg -i *.deb

pip install replacement

Online:

$ mkdir pip-whl && cd pip-whl && python3 -m pip download pillow numpy RPi.GPIO spidev pip setuptools && wget https://www.piwheels.org/simple/numpy/numpy-1.19.4-cp37-cp37m-linux_armv6l.whl && wget https://www.piwheels.org/simple/pillow/Pillow-8.0.1-cp37-cp37m-linux_armv6l.whl && cd ..

Offline (after copying files over):

$ sudo python3 /path/to/pip-20.2.4-py2.py3-none-any.whl/pip install --no-index --find-links [everything in pip-whl]

If this works, then I think all these deb/whl could be brought into the project some how to make checkout + install easy. I'm not sure if the best approach is git submodules or perhaps an installer script to fetch them and validate their digest.
opened by mflaxman 6
[Enhancement] Skip second seed selection & Discard PSBT option
Correction/Enhancing workflow related to selecting a seed after scanning a PSBT (when you've already selected the seed previously).

The skipping of the "second" seed selection requires these conditions:

PSBT was scanned from a previous selected seed menu

The fingerprint of the seed must match a input fingerprint in the PSBT (this means network settings also need to be correct).

Also add "Discard PSBT" at the bottom of the seed selection menu (after Discard Seed). This only appears if a PSBT was previously loaded (scanned) into memory and then the user backed out. This provides the user a way to discard the PSBT without having to complete the signing workflow or scan from the home menu.
opened by newtonick 5
New SeedQR + mnemonic backup printable templates
New templates designed to be usable as gifts to noobs (all the "wfingerprint" versions).

So far only in 21x21.

Includes 12- and 24-word mnemonic cards.

A matching xpub card, but requires that the user generate and print/paste/paste over the empty space for the xpub QR.

Renaming and re-org of existing templates

Removed older, less polished templates

Removes template_generator.py which was originally used to create html-based templates. No longer necessary.
opened by kdmukai 0
[GitHub Issues]: Adding Templates for issues for better reviewability

Current Situation As I have been going through SeedSigner issues I have thought that there could be a better way to organize new issues and found out that GitHub supports templates for creating issues. Currently all new issues use the same format and that can make it a little more difficult to filter through issues and figure out what an issue is about.

Proposed Action I have made some sample templates that can be seen in my seedsigner repository issues (Note: the templates will only be active when they are part of the default branch for the repo). These are just some basic templates that I copied and edited from examples in the GitHub documentation and adjusted them to fit some of SeedSigner repo needs. These templates can automatically assign labels and assign ownership of issues if desired. In the example template for a feature request I also added a spot where the requester can offer to put up a bounty for the feature (just an idea).

Additionally I am wondering if it would be beneficial to enable discussions in the seed signer repo. You can see what discussions look like on the BlueWallet repo. I think it could be a good place for people to ask questions, get answers, share builds, discuss ideas that may not be the point of creating a new issues, etc. I have not previously used discussions so I cannot speak from experience, but it may be useful for the community. This could also be a place to redirect people that have questions or need help and avoid creating new issues that are not actual issues, but rather questions.

Example List of Issue Templates

BlueWallet Repo Discussions

opened by EverydayBitcoiner 13
Passphrase Verification for Seed Backup Flow

I added a section to the end of the seed backup flow that will offer the opportunity for a user to verify their passphrase if the seed they are backing up has a passphrase. I made this up in response to issue #90 as a way for users to verify the passphrase in the backup process while still not showing the passphrase to the user again. This should work for both the seed word backup and the QR backup flows.

One thing that I did not implement in this flow that I think may be useful is a max number of attempts at passphrase verification (like 10 or something) before the seed gets wiped from memory.

Thoughts?

opened by EverydayBitcoiner 12
Shuffle SeedQR

Folks, I wrote this, not wanting to be arrogant, but wanting to improve this amazing project, please take this as constructive criticism.

I made some assumptions: If the equipment is stolen, you are safe. If the QRcode is exposed, everything is lost. (we are avoiding liability). If the QRcode is exposed, but it has Bip39 passphrase, it is safe, it can add some security, but it also adds complexity.

Have you considered using a shuffle algorithm to secure the SeedQR code? The option is to use Python to generate a secure random key or a deterministic key by equipment, and use this key as a seed for a shuffle algorithm like the Fisher-Yates shuffle. This will shuffle our QR code in a way that makes it useless if it is exposed or photographed( because the shuffle seed), and can be physically stored on SD card equipment. This can be a great way to protect user QrCode!

If the equipment is stolen and this key is extracted, and will, there is no risk. this key can even be generated and stay on the SD card clear text, it is only used to protect the SeedQRCode been exposed. If the QRcode is exposed, no risk without the seed to revert the shuffle.

Recoverability: But now we lose Recoverability, as the QRcode no longer matches the user's seed. Yea! And this can be solved if the shuffle seed is created deterministically using the seedphrases... so same seed phrases generate same key to shuffle, same key can be used to recover from a SeedQr Code.

It's important to understand that now we keep our backup keys (which may be 12 or 24 words long) safe and secure and hidded, and that the QR code we now generate and use on a daily basis (called the SeedQr) will be different from the backup seeds...

Here is some example in JS https://www.npmjs.com/package/seedrandom https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle

opened by jrc-dev 2
[GUI] More consistency in formatting buttons

@easyuxd, tagging you because I know you are the UX guy.

A couple of things that I want to change, but not sure if there is a reason they are the way they are.

One is the right carat in the two images below. The carat seems extra and inconsistent and I'm not entirely sure what it is conveying because every menu option leads me to a place where I am presented with more options (I get that the advanced one is indicating a submenu, but if it is going to have the carat I think it should be the very bottom button). Is there a reason that these need to be here or can they be taken out to be more consistent?

I'm also a little bit bothered by the fact that only one button on the Seed Options list has an icon. I think it would be more consistent to either have all buttons one way or the other rather than a mix of some with icons and some without. Below is an example of them all having icons on that list.

opened by EverydayBitcoiner 1
[Enhancement] Long Click Functionality

Implementing functionality to enable use of long click for any buttons. This came up in https://github.com/SeedSigner/seedsigner/pull/286#issuecomment-1364563189 where the use case would be for long pressing the back button to abort all flows and go all the way back home instead of having to go back through the whole backstack.

Another possible use case would be to avoid accidental clicks for certain actions such as you have to long press the discard seed button when getting rid of a seed (I know that there is already a screen warning before this step). I think this could be a good functionality to have as it opens up different ways of developing the UX.

opened by EverydayBitcoiner 10

Releases(0.5.1_EXP)

0.5.1_EXP(Oct 14, 2022)
This experimental release features a new customized Linux Buildroot operating system that we're calling "SeedSigner OS".

More information on SeedSigner OS can be found at: https://github.com/SeedSigner/seedsigner-os

Over time SeedSigner OS will open up additional possibilities, but this initial release already includes the following features:

Dramatically smaller binary release image (~3.8 GB ==> ~0.035 GB)

Ability to remove (and re-insert) the memory card after boot

Reduced attack surface due to customized, security-hardened OS

It should also be noted that this release can be built from scratch with just three terminal commands.

Because this release is experimental and not recommended for use with real funds, no G/PGP attestation signature is being provided with the released files.

Known Issue: This experimental release is not compatible with Pi Zero 2W

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For anyone testing with this experimental release, please make any suggestions and report any bugs in our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "SeedSignerOS_0_5_1_EXP.img"

Write the extracted image to a 64 MB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare / lighting issues

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
SeedSignerOS_0_5_1_EXP.img(34.00 MB)
SeedSignerOS_0_5_1_EXP.img.sha256(134 bytes)
0.5.1(Jun 17, 2022)
This release builds on our recent UX/UI upgrade and includes a few new features and bug-fixes.

Checking your download for integrity and authenticity is super important! These steps make the process pretty darn simple: https://github.com/SeedSigner/seedsigner#verifying-your-software

New Features:

Options to add final word entropy

Coin flips

Select BIP39 word

Finalize with zeros

Added final word calc screen showing bit-level entropy + checksum bits

Integration of compiled secp256k1 library for ~8x faster signing / address verification

Miscellaneous under-the-hood code clean-up & enhancements

Bug Fixes:

Workflow bug related to scanning PSBT/address before initializing a mnemonic

Bug on displaying complex transactions involving self-transfers resolved

Special Notes:

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

To install on your MicroSD card:

Download the file "seedsigner_0_5_1.img.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

Built for compatibility with Nunchuk 1.9.7 and up

The system's user:password has been set to pi:AirG@pped!

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare/lighting issues

Scan a Bitcoin address to initiate the manual verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

You are the software integrity assurance mechanism -- verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_1.img.zip(1163.42 MB)
seedsigner_0_5_1.img.zip.sha256(161 bytes)
seedsigner_0_5_1.img.zip.sha256.sig(438 bytes)
0.5.0(Apr 25, 2022)
We made it to the finish line! We immensely appreciate everyone's interest, testing, donations, suggestions, and all of the other help along the way.

This is a big, big upgrade to the SeedSigner user experience!

Beautiful new interface, updated code base, more intuitive workflows!

Checking your download for integrity and authenticity is super important! These steps make the process pretty darn simple: https://github.com/SeedSigner/seedsigner#verifying-your-software

Special Notes:

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

To install on your MicroSD card:

Download the file "seedsigner_0_5_0.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

Built for compatibility with Nunchuk 1.9.7 and up

For testing/development using SSH, the device's network name is "raspberrypi"

The system password has been set to "AirG@pped!" (no quotes)

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare/lighting issues

Scan a Bitcoin address to initiate the manual verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_0.img.zip(1161.13 MB)
seedsigner_0_5_0.img.zip.sha256(161 bytes)
seedsigner_0_5_0.img.zip.sha256.sig(438 bytes)
0.5.0-rc1(Apr 5, 2022)
At last, this is the release candidate for our UI overhaul upgrade!

Special Notes:

Please make suggestions and report ANY bugs you come across in our Telegram chat

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For anyone testing with this pre-release, please make any suggestions and report any bugs in our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "seedsigner_0_5_0-pre3.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

Implemented Pre-Release Features:

Seed word backup verification test (new)

Denomination display options (new)

Settings: Donate screen (new)

HRF logo on splash screen (new)

Improve I/O Test responsiveness (new)

I/O Test in Settings

Create new seed via dice

Single sig psbt change & self-transfer/receive address verification

Single sig address scan and verification

Multisig psbt change/receive addr verification

Multisig address scan and verification

UR format multisig wallet descriptor import

Custom derivation paths in xpub export flow

Scan SeedQR / CompactSeedQR

Create new seed via image entropy

Manual mnemonic seed word entry

12th/24th word calc

Add/Edit passphrase

View seed words w/configurable warnings

SeedQR/CompactSeedQR manual transcription UI w/configurable UI style (dots vs grid)

Export xpub w/configurable warnings and flow determined by Settings

Scan PSBT

Full PSBT review screens

Single sig address scan and verification

"Full Spend" (no change) warning

Send signed PSBT via QR

QR display dimming/brightness UP/DOWN

Subset of configurable Settings; persistent Settings storage

All GUI Components support scrollable Screens

SettingsQR integration proof-of-concept

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "raspberrypi"

The system password has been set to "AirG@pped!" (no quotes)

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the manual verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare/lighting issues

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_0-rc1.img.zip(1152.22 MB)
seedsigner_0_5_0-rc1.img.zip.sha256(165 bytes)
seedsigner_0_5_0-rc1.img.zip.sha256.sig(438 bytes)
0.5.0-pre3(Mar 30, 2022)
This is the third of our User-Interface-Overhaul pre-releases!

Special Notes:

This is a testing release! Don't risk real funds or create keys for use with real funds!

Not all functionality in the current release has been implemented!

Screens may not be in their final presentation state (icons, text, positioning, etc)

Please make suggestions and report ANY bugs you come across in our Telegram chat

Because this is a testing release, a hash is being provided, but no attestation signature

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For anyone testing with this pre-release, please make any suggestions and report any bugs in our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "seedsigner_0_5_0-pre3.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

Implemented Pre-Release Features:

I/O Test in Settings (new)

Create new seed via dice (new)

Single sig psbt change & self-transfer/receive address verification (new)

Single sig address scan and verification (new)

Multisig psbt change/receive addr verification (new)

Multisig address scan and verification (new)

UR format multisig wallet descriptor import (new)

Custom derivation paths in xpub export flow (new)

Scan SeedQR / CompactSeedQR

Create new seed via image entropy

Manual mnemonic seed word entry

12th/24th word calc

Add/Edit passphrase

View seed words w/configurable warnings

SeedQR/CompactSeedQR manual transcription UI w/configurable UI style (dots vs grid)

Export xpub w/configurable warnings and flow determined by Settings

Scan PSBT

Full PSBT review screens

Single sig address scan and verification

"Full Spend" (no change) warning

Send signed PSBT via QR

QR display dimming/brightness UP/DOWN

Subset of configurable Settings; persistent Settings storage

All GUI Components support scrollable Screens

SettingsQR integration proof-of-concept

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "raspberrypi"

The system password has been set to "AirG@pped!" (no quotes)

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare/lighting issues

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_0-pre3.img.zip(1145.33 MB)
seedsigner_0_5_0-pre3.img.zip.sha256(166 bytes)
0.5.0-pre2(Mar 16, 2022)
This is the second of our User-Interface-Overhaul pre-releases!

Special Notes:

This is a testing release! Don't risk real funds or create keys for use with real funds!

Not all functionality in the current release has been implemented!

Screens may not be in their final presentation state (icons, text, positioning, etc)

Please make suggestions and report ANY bugs you come across in our Telegram chat

Because this is a testing release, a hash is being provided, but no attestation signature

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For anyone testing with this pre-release, please make any suggestions and report any bugs in our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "seedsigner_0_5_0-pre1.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device

Implemented Pre-Release Features:

Scan SeedQR / CompactSeedQR

Create new seed via image entropy

Manual mnemonic seed word entry

12th/24th word calc

Add/Edit passphrase

View seed words w/configurable warnings

SeedQR/CompactSeedQR manual transcription UI w/configurable UI style (dots vs grid)

Export xpub w/configurable warnings and flow determined by Settings

Scan PSBT

Full PSBT review screens

Single sig address scan and verification

"Full Spend" (no change) warning

Send signed PSBT via QR

QR display dimming/brightness UP/DOWN

Subset of configurable Settings; persistent Settings storage

All GUI Components support scrollable Screens

SettingsQR integration proof-of-concept

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "raspberrypi"

The system password has been set to "AirG@pped!" (no quotes)

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the screen, adjust brightness (up/down) & reduce QR density to resolve glare/lighting issues

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_0-pre2.img.zip(1140.12 MB)
seedsigner_0_5_0-pre2.img.zip.sha256(166 bytes)
0.5.0-pre1(Mar 2, 2022)
This is the first of our User-Interface-Overhaul pre-releases!

Special Notes:

This is a testing release! Don't risk real funds or create keys for use with real funds!

Not all functionality in the current release has been implemented!

Screens may not be in their final presentation state (icons, text, positioning, etc)

SeedQR export functionality is not yet implemented, you will have to enter seed words manually or use SeedQRs generated with previous versions

Please make suggestions and report ANY bugs you come across in our Telegram chat

Because this is a testing release, a hash is being provided, but no attestation signature

For now the Settings Generator repo is still hosted by Keith, you can find it at: https://github.com/kdmukai/seedsigner-settings-generator

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

For anyone testing with this pre-release, please make any suggestions and report any bugs in our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "seedsigner_0_5_0-pre1.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device.

Implemented Pre-Release Features:

Scan SeedQR / CompactSeedQR

Add/Edit passphrase

View seed words w/configurable warnings

Export xpub w/configurable warnings and flow determined by Settings

Scan PSBT

Full PSBT review screens

"Full Spend" (no change) warning

Fully verify PSBT change address (single sig)

Send signed PSBT via QR

QR display dimming/brightness UP/DOWN

Subset of configurable Settings; persistent Settings storage

SettingsQR integration proof-of-concept

General SeedSigner Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "raspberrypi"

The system password has been set to "AirG@pped!" (no quotes)

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the screen, adjust brightness & reduce QR density to resolve glare/lighting issues

You are the software integrity assurance mechanism; verify your downloads!

Source code(tar.gz)
Source code(zip)
seedsigner_0_5_0-pre1.img.zip(1125.75 MB)
seedsigner_0_5_0-pre1.img.zip.sha256(166 bytes)
0.4.6(Feb 21, 2022)
This release includes a few additions and housekeeping items that we wanted to get in place before the UI-upgrade pre-releases start rolling out.

Check out our Independent Custody Guide to read more on what our project is all about: https://github.com/SeedSigner/independent_custody_guide

Join our Telegram group for help building a signer and to keep up with all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

If you are getting value from SeedSigner, please consider donating to our development fund: https://seedsigner.com/donate-now/

To install on your MicroSD card:

Download the file "seedsigner_0_4_6.zip"

Verify the .zip file click here to view how

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device.

Front End Updates / Changes:

Compressed SeedQRs! (opt-in feature for now, you can enable it in Settings)

Improved Sparrow XPUB export/import workflow

Lower default brightness for QR exchange to enhance scan-ability

Dice-to-Seed module fully verifiable with Ian Coleman / ColdCard

Back End Updates / Changes:

"zbar" updated to 0.23.90 for binary QR scanning support

"pyzbar" updated to a custom fork to enable binary QR scanning

Integrated jreesun's "urtypes" libary (Thank You jreesun!!!)

Considerations:

Built for compatibility with Specter v1.4.5 and up Built for compatibility with Sparrow Wallet v1.4.2 and up Built for compatibility with BlueWallet v6.1.9 and up For testing/development using SSH, the device's network name is "seedsigner" The system password has been set to "AirG@pped!" (no quotes) Use up/down to adjust brightness while QRs are displayed Scan a Bitcoin address to initiate the verification process The best way to practice & get comfortable with signing is testnet Test with small amounts of BTC first if starting with mainnet Rotate the screen, adjust brightness & reduce QR density to resolve glare/lighting issues
Source code(tar.gz)
Source code(zip)
seedsigner_0_4_6.img.zip(1153.87 MB)
seedsigner_0_4_6.img.zip.sha256(161 bytes)
seedsigner_0_4_6.img.zip.sha256.sig(438 bytes)
0.4.5(Nov 21, 2021)
This release includes some smaller quality-of-life improvements and sets us up for the comprehensive UI re-design coming in our next major release.

Join our Telegram group for help building a signer and to learn about all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on your MicroSD card:

Download the file "seedsigner_0_4_5.zip"

Extract the .img file

Write the extracted image to a 4 GB or larger MicroSD card

(make sure to use "dd" or a disk-authoring tool like Balena Etcher)

The UI should appear in less than a minute after applying power to the device.

New Features:

Optimized XPUB export workflow

Fully customizable XPUB derivation paths

On-Demand receive/change address verification

QR brightness adjustment

Splash screen & screen saver (reduces ghosting)

Optional camera rotation for alternative build profiles

New more readable, FOSS font

WiFi & Bluetooth now disabled by default

Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "seedsigner"

The system password has been set to "AirG@pped!" (no quotes)

Use up/down to adjust brightness while QRs are displayed

Scan a Bitcoin address to initiate the verification process

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Rotate the scree, adjust brightness & reduce QR density to resolve glare/lighting issues

Known Bug:

Dice-to-Seed module is inconsistent with Coldcard / Ian Coleman computation methods if rolls include a "6". A fix has been merged into the main branch so users building from source will have access to the corrected code; this fix will also be included the next release.

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_5.img.zip(1131.38 MB)
seedsigner_0_4_5.img.zip.sha256(161 bytes)
seedsigner_0_4_5.img.zip.sha256.sig(438 bytes)
0.4.4(Aug 28, 2021)
The Smart Scanning, Live Preview & Moar Entropy Release

This release introduces a smart QR scanning module, live preview, and enhancements to the seed-from-photo module.

Join our Telegram group for help building a signer and for all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_4_4.zip", extract the .img file, and write that image to a MicroSD card (at least 4GB in size).

The UI will appear about 45 seconds after applying power to the device.

(Please note that our core air-gapped QR signing functionality is working reliably, however when making transactions with numerous inputs [UTXO consolidation] the volume of frames to scan in and out of SeedSigner can be large. We are working with wallet coordinator developers to optimize this process; like most software, it will get better and better with time.)

New Features:

Smart scanning identifies item scanned & adjusts workflow/settings accordingly

Screen displays live-preview during seed-from-photo & QR scanning modules

More entropy introduced to seed-from-photo module (CPU serial, milliseconds, frames)

Faster animated QR generation

Faster camera initialization

Persistent settings with SeedSigner reset option

Handling of no-camera-installed within I/O Test module

Prompt for wallet during XPUB export process

Warning message if seed does not correspond with PSBT

Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "seedsigner"

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Slightly rotate the SeedSigner screen to resolve glare/lighting issues

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_4.img.zip(1093.36 MB)
seedsigner_0_4_4.img.zip.txt.gpg(630 bytes)
0.4.3(Aug 1, 2021)
The "License and Test Suite and Cursors - Oh My!" Release

This release adds a couple of new features and includes some under-the-hood work as well.

Join our Telegram group for help building a signer and for all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_4_3.zip", extract the .img file, and write that image to a MicroSD card (at least 4GB in size).

Startup time is holding for now at ~50 seconds. (Way down from where we started at 90 seconds!)

(Please note that our core air-gapped QR signing functionality is working reliably, however when making transactions with numerous inputs [UTXO consolidation] the volume of frames to scan in and out of SeedSigner can be large. We are working with wallet coordinator developers to optimize this process; like most software, it will get better and better with time.)

New Features:

Generate 24-word seed entropy from digital photos

Redesigned seed/passphrase entry keyboard interface

Significantly reduced camera startup time

Code structure migration to singleton controller

Creation of initial project test suite

Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet v1.4.2 and up

Built for compatibility with BlueWallet v6.1.9 and up

For testing/development using SSH, the device's network name is "seedsigner"

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Slightly rotate the SeedSigner screen to resolve glare/lighting issues

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_3.img.zip(1098.82 MB)
seedsigner_0_4_3.img.zip.txt.gpg(628 bytes)
0.4.2(Jul 16, 2021)
This release is all about making it quicker and easier to import your seed phrases!

Join our Telegram group for help building a signer and for all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_4_2.zip", extract the .img file, and write that image to a MicroSD card (at least 4GB in size).

Startup time is holding for now at ~50 seconds. (Way down from where we started at 90 seconds!)

(Please note that our core air-gapped QR signing functionality is working reliably, however when making transactions with numerous inputs [UTXO consolidation] the volume of frames to scan in and out of SeedSigner can be large. We have several paths to optimize this process and will be bringing improvements in future versions of SeedSigner.)

New Features:

BIP39 passphrase support (more security for your seeds!)

SeedQR transcription UI & import mechanism

Single-Signature Wallet Mode (1-of-1 at last!)

QR density setting (low/med/high)

Extended public key information detail (verify ALL your cosigners!)

Enhanced transaction information display

Optimized menu structure / workflow

Bug Fix

Release includes updated embit 0.4.2 to resolve a fee estimation error when using Sparrow Wallet

Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet 1.4.2 and up

Built for compatibility with BlueWallet 6.1.5 and up

BlueWallet users may have to switch to "legacy" QR mode for now

For testing/development using SSH, the device name has been changed from "raspberrypi" to "seedsigner"

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Slightly rotate the SeedSigner screen to resolve glare/lighting issues

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_2.img.zip(1039.83 MB)
seedsigner_0_4_2.img.zip.txt.gpg(630 bytes)
0.4.1(Jun 25, 2021)
This release is all about adding support for TWO MORE multi-signature wallet coordinators!

Join our Telegram group for help building a signer and for all other things SeedSigner! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_4_1.zip", extract the .img file, and write that image to a MicroSD card (at least 4GB in size).

Startup time is holding for now at ~50 seconds. (Way down from where we started at 90 seconds!)

(Please note that our core air-gapped QR signing functionality is working reliably, however when making transactions with numerous inputs [UTXO consolidation] the volume of frames to scan in and out of SeedSigner can be large. We have several paths to optimize this process and will be bringing improvements in future versions of SeedSigner.)

New Features:

Support for Sparrow Wallet! (https://sparrowwallet.com/)

Support for BlueWallet Multisig Vault! (https://bluewallet.io/multisig-wallet/)

Repo housekeeping to pave the way for more great features & improvements

Considerations:

Built for compatibility with Specter v1.4.5 and up

Built for compatibility with Sparrow Wallet 1.4.2 and up

Built for compatibility with BlueWallet 6.1.5 and up

The best way to practice & get comfortable with signing is testnet

Test with small amounts of BTC first if starting with mainnet

Currently support for multisig wallets only (single-sig coming)

Slightly rotate the screen to resolve glare/lighting issues

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_1.img.zip(1015.39 MB)
seedsigner_0_4_1.img.zip.txt.gpg(628 bytes)
0.4.0(May 26, 2021)
What an amazing step forward for the project, restructuring the code base sets us up for so many good things to come!

Join our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_4_0.zip", extract the .img file file, and write that image to a MicroSD card (at least 4GB in size).

Startup time is down to ~50 seconds. (Way down from where we started at 90 seconds!)

New Features:

New code structure to facilitate faster startup time

More responsive button and joystick navigation

Improved word gathering screen showing ONLY VIABLE LETTERS

Persistent press for letter gathering is back

Improved navigation for aborting / exiting by using left joystick

New left-click menu for generating seed from dice

Ability to display a stored seed once it has been saved

Adding Settings option for wallet selection (currently Specter only)

Prompts to save seed when calculating final word

Confirmation prompt for power off

Considerations:

Built for compatibility with Specter v1.1.0 and up

Use Specter's "other" device type

Boot time is ~50 seconds on RasPi Zero

Always opt for animated QR codes in Specter

Test with small amounts of BTC if using mainnet

Currently support multisig only

Try holding screen upside-down when signing

Source code(tar.gz)
Source code(zip)
seedsigner_0_4_0.img.zip(1011.80 MB)
seedsigner_0_4_0.img.zip.txt.gpg(629 bytes)
0.4.0b3(May 8, 2021)
Help test the foundation for the next chapter of SeedSigner!

This is a pre-release of our new code structure, with some additional new features:

New code structure to facilitate faster startup time

Improved word gathering screen showing only viable letters

More responsive button and joystick navigation

Improved navigation for aborting / exiting by using left joystick

New left-click menu for generating seed from dice

Ability to display a stored seed once it has been saved

Adding Settings option for wallet selection (currently Specter only)

Prompts to save seed when calculating final word

Confirmation prompt for power off

The code in this pre-release is based on newtonick's pull request:

https://github.com/newtonick/seedsigner/tree/refactor

To install the new version download the .zip file, decompress, and write the image to SeedSigner's MicroSD card.

Please share feedback here in the repo, or in the project's Telegram group:

https://t.me/joinchat/GHNuc_nhNQjLPWsS

Please note that the startup time for this test version is still ~70 seconds; the greatest startup time reduction will come when we move to a compiled binary running on Tiny Core, which is targeted for version 0.5.0.

This release includes a GPG signed message referencing the SHA256 hash of the release .zip file; the public key can be found in the main SeedSigner repository.
Source code(tar.gz)
Source code(zip)
seedsigner_0_4_0_b3.txt(144 bytes)
seedsigner_0_4_0_b3.txt.gpg(618 bytes)
seedsigner_0_4_0_b3.zip(1013.23 MB)
0.3.0(Feb 6, 2021)
Release Notes

Join our Telegram group! https://t.me/joinchat/GHNuc_nhNQjLPWsS

To install on a MicroSD, download the file "seedsigner_0_3_0.zip", extract the .img file file, and write that image to a MicroSD card (at least 4GB in size).

New Features:

added TESTNET!

added support for 12 word seeds

added ability to temporarily save 3 seeds

added outgoing psbt trimming

added status indicators during frame input

added support for up to 99 input frames

added "go-back" during word entry

added error checking for entered seeds

fixed change identification bug

various UX improvements & other bug fixes

Considerations:

built for compatibility with Specter v1.1.0 and up

use Specter's "other" device type

boot time is 90-100 seconds on RasPi Zero

always opt for animated QR codes in Specter

test with small amounts of BTC if using mainnet

currently support multisig only

try holding screen upside-down when signing

Source code(tar.gz)
Source code(zip)
main.py(1.35 KB)
resources.py(152.97 KB)
seedsigner_0_3_0.txt.gpg(609 bytes)
seedsigner_0_3_0.zip(1011.07 MB)
ST7789.py(4.80 KB)
0.2.0(Jan 15, 2021)

Ability to generate xpub keys and sign transactions via QR codes added to this version! See the current project readme for further information! To install on a MicroSD, download the file "seedsigner_0_1_0.zip", extract the .img file file, and write that image to a MicroSD card (at least 4GB in size). Help can be found on Telegram at https://t.me/joinchat/GHNuc_nhNQjLPWsS
Source code(tar.gz)
Source code(zip)
dice.py(21.12 KB)
getword24.py(2.83 KB)
getwords.py(46.44 KB)
iotest.py(6.51 KB)
main.py(938 bytes)
menus.py(21.42 KB)
psbtsign.py(11.33 KB)
seedsigner_0_1_0.zip(1011.00 MB)
xpubmake.py(4.59 KB)
0.0.2(Dec 20, 2020)

Made some changes to the UX and added functionality to generate a 24-word seed with dice rolls in this version.

This is a preconfigured image with SeedSigner and the necessary dependencies installed; write the image to your MicroSD just as you would Raspberry Pi OS. The app will appear a little over a minute after power is applied to a Raspberry Pi Zero; may be quicker for 2/3/4.
Source code(tar.gz)
Source code(zip)
seedsigner.zip(663.33 MB)