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10 sats \ 7 replies \ @quark 17 Dec 2023 freebie \ parent \ on: How to secure backup seed at the airport? bitcoin

the passphrase is your 25th word or 13th word depending if you use 24 or 12 for the seed. It is created when you create your wallet. If your wallet doesn't provide you with a way to enter the passphrase, change your wallet. Memorize your passphrase just to cross the airport. You were worried that they can scan your 24 words at the airport. If they enter those 24 words without your passphrase, they would only see an empty wallet. They can't do anything with it. They would need the 25 words in order to access your sats.

10 sats \ 6 replies \ @momboteq OP 17 Dec 2023

You simply mean a wallet that additionally requires an additional password to recreate the wallet?

11 sats \ 2 replies \ @kytt 17 Dec 2023 freebie

A passphrase is optional. It's just a new word, of your choice, added to the end of your 12 or 24 word seedphrase.

A specific 12/24 word seedphrase is for a particular wallet. If you add a passphrase to the end of that, it's a completely different wallet. One person could have a seedphrase with 12 of the same words and another person could have those same 12 words + a passphrase and it would be a completely different wallet. Those two wallets would not be connected in any way whatsoever, even though their private key is almost exactly the same.

I have setup my passphrase to be very long and memorable, but easily reconfigurable (for me) so that if I want a completely new wallet, I just reorganize my passphrase, but still use the same seedphrase.

Example:

Let's say your 12 words are all the same:

goat goat goat goat goat goat goat goat goat goat goat goat

That's one wallet

Now lets create a new wallet:

goat goat goat goat goat goat goat goat goat goat goat goat + janfebmaraprmayjunjulaugsepoctnovdec [this last bit is your passphrase]

This is a completely different wallet and private key

This passphrase is similar to how I've done my own passphrase, but I use something else that is memorable to me. If I used the passphrase above and wanted to reorganize it, I could do something like:

febmaraprmayjunjulaugsepoctnovdecjan

decnovoctsepaugjuljunmayaprmarfebjan

and each of those would create ANOTHER completely different wallet/private key

0 sats \ 1 reply \ @quark 17 Dec 2023

maybe it is interesting to use the goat example part as a passphrase too. You did the goat as representing the seed phrase part right? But we could use that in the passphrase too, it increases the length of the passphrase a lot while you only have to memorize the word goat and the number of times. low cost complexity added. should be always used with a more random string after it.