Quick Guide:

  1. Select seed length (12/18/24 words)
  2. Enter dice rolls (1-6):
  3. Click "Generate" when done

How It Works:

  1. Entropy Generation:
    • 12 words: 128 bits (121 from dice + 7 checksum)
    • 18 words: 192 bits (186 from dice + 6 checksum)
    • 24 words: 256 bits (253 from dice + 3 checksum)
  2. Dice to Binary:
    • Each die converts to 1 bit
    • Rolls 1-3 become '0'
    • Rolls 4-6 become '1'
  3. Checksum Process:
    • SHA256 hash of entropy bits
    • First N bits used as checksum
    • N = entropy_length ÷ 32
  4. Word Generation:
    • Each word uses 11 bits
    • Last word combines entropy + checksum
    • Bits convert to index (0-2047)
    • Index maps to BIP39 word list

Security Note: Use on air-gapped computer for maximum security. Each die roll provides 1 bit of entropy.