Create Master HD Seed on Offline Seed Generator with Binary Entropy

  1. Gather the necessary hardware:

  2. Power up the Rudefox Burrow Offline Seed Generator

  3. Enter the following command and press [Enter] to initiate seed generation

    burrow mnemonic -i2b 256

  4. Go through 8 iterations of coin tosses (or dice rolls) and seed word recording & verification as follows:

    1. Generate a sequence of 33 random 1's and 0's, by either:

      • Tossing a fair coin 33 times
      • Rolling 6-sided, casino-grade dice 33 times and using a 1 for an even roll and a 0 for an odd roll

    2. Enter the resulting sequence of 1's and 0's into the Offline Seed Generator (no spaces) and press [Enter]

      Input 33 coin tosses [0-1]: 011111101001100001100011101110000

    3. Record the binary and seed words in the verification table

      For example, if the screen shows:

      | 0 111111 0100 | 1 100001 1000 | 1 110111 0000 |
|  1. leader    |  2. seek      |  3. unlock    |

      …then record the following in the worksheet:

      Completed Row 1 Example

      • Note: It is fine to leave the 'Dice roll' line blank, as this line applies only to the '8-sided dice' entropy generation method.

    4. Use the binary-to-seed-word lookup-tables to verify translation of each of the 3 groups of 11 binary digits into its corresponding seed word

      1. Use the first of the 11 bits (box shaded red) to determine which of the 2 "Binary to Word - Lookup Tables" to use
        Binary-to-Seed

      2. Use the next 6 bits (boxes shaded green) to determine which row of the table contains the seed word
        Binary-to-Seed

      3. Use the last 4 bits (boxes shaded blue) to determine which column of the table contains the seed word
        Binary-to-Seed

      4. Match the table word to the word you copied onto the worksheet
        Binary-to-Seed

  5. Write down your 24 seed words (Recovery Phrase), on waterproof paper, using a Sharpie

    • Write it in 6 rows, with 4 words in each row
    • Include the word number before each word
    • Beware of homonyms or similar words
    • Leave some room at the bottom of the page for notes
    • Afterward, go back through all 24 words, and look at each character in the words to make sure you got them right
    • Never, EVER enter your Recovery Phrase into a connected device… UNDER ANY CIRCUMSTANCES! If a device is connected to a network, it can be hacked and even a copy of your Recovery Phrase that is stored only on that device will be stolen.

  6. On the waterproof paper page, under the Recover Phrase, write:

    Generated on [date] using Rudefox Burrow according to the BIP-39 standard

Notes