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blue-app-monero tools

Seed Recovery

Goals

The 24 master seed words (BIP39/BIP32) of your device is enough to keep safe your Monero in case you loose or break your device: get a new device, set it with your 24 words, install Monero application: your funds are here!

Now imagine you need to access your funds in emergency and cannot wait for a new device. The solution is to restore your wallet as a standard wallet with the 25 seed electrum words.

For that, this tools is what you need: It convert the 24 seed words to 25 Electrum/Monero seed words.

This convertion can be made in tow manner: offline and online.

Offline:

You do not need your device, just your 24 words. This way is insecure as you will have to enter your 24 master words on the computer and the 25 Electrum seed will be display on the same computer.

Online:

You need your device. This way is secure as you will have not to enter your 24 master words on the computer and your 25 Electrum seed will be display only on your device.

Once got, you can write down those 25 words alongside with your 24 master seed words.

Requirements

libusb-1.0-0-dev libudev-dev

 sudo apt install libusb-1.0-0-dev libudev-dev

The following python package are required:

Ecpy
pycrytodome
ledgerblue

 pip3 install pycryptodomex
 pip3 install ECPy
 pip3 install ledgerblue
 
On Windows

pip3 install pyreadline


On Mac/Linux

pip3 install readline

Usage

Offline

In tools/python/ directory run the command:

 PYTHONPATH=`pwd`/src python3 src/ledger/monero/seedconv.py offline

Example:

$ PYTHONPATH="$(pwd)/src" python3 src/ledger/monero/seedconv.py offline

    =============================================================
    Monero Seed Converter v0.9. Copyright (c) Ledger SAS 20018.
    Licensed under the Apache License, Version 2.0
    =============================================================
            
    * Select Language
       0 : 简体中文 (中国) (Chinese (simplified))
       1 : Nederlands (Dutch)
       2 : English (English)
       3 : Esperanto (Esperanto)
       4 : Français (French)
       5 : Italiano (Italian)
       6 : 日本語 (Japanese)
       7 : Lobjan (Lobjan)
       8 : Português (Portuguese)
       9 : русский язык (Russian)
      10 : Español (Spanish)
    Enter the number corresponding to the language of your choice (2): 2

    WARNING: Be sure to use a TRUSTED and SAFE computer.
    * Continue? (yes/no): yes

    * Enter your NanoS 12/18/24 words: abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about

    * Enter your NanoS passphrase (may be empty): 

        * Result:
          ---------------------------------------------------------------------------------------------------
          | Monero Electrum words :  tavern judge beyond bifocals deepest mural onward dummy                |
          |                          eagle diode gained vacation rally cause firm idled                     |
          |                          jerseys moat vigilant upload bobsled jobs cunning doing jobs           |
          |                                                                                                 |
          | seed                  :  db9e57474be8b64118b6acf6ecebd13f8f7c326b3bc1b19f4546573d6bac9dcf       |
          | Spend key             :  3b094ca7218f175e91fa2402b4ae239a2fe8262792a3e718533a1a357a1e4109       |
          | View key              :  0f3fe25d0c6d4c94dde0c0bcc214b233e9c72927f813728b0f01f28f9d5e1201       |
          ---------------------------------------------------------------------------------------------------

Online