Replying to Avatar jimbocoin 🃏

“Not your keys, not your coins” extends to your signing devices. If you didn’t roll your seed words yourself, you can never be sure that someone else does’t have them.
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Nope Noperson 2y ago

This is a worry that has been in the back of my head since I made my first seed phrase.

Do the poplular devices, e.g., Blockstream Jade, Coldcard, etc., have this functionality?

Are there resources for rolling on a random table, or something?

Thanks!

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jimbocoin 🃏 2y ago

Personally, I use a regular deck of playing cards. Shuffling playing cards is a widely practiced skill and a good source of entropy.

This PDF has a table that maps tuples of cards to BIP39 seed words. It also has a link to the GitHub project where you can read the source code and methodology. https://jimbojw.github.io/seed-picker-solitaire/seed-picker-solitaire.pdf