Nostr Web Client

I was reading the cold card website and they said you can have unlimited wallets by changing the pass phrase.

“By adding a BIP-39 passphrase you can unlock nearly unlimited additional wallets which derive from the original 24 seed words. The passphrase you use defines the wallet and cannot be changed. BIP-39 passphrases are not backed up or otherwise tracked, which gives lots of freedom in terms of plausible deniability.”

Does this allow me to use the same seed words but add a pass phrase to have a “different wallet”

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Discussion

🍊⚡adam sandals 2y ago

Yes, that's exactly it. You can create multiple wallets from one seed phrase. Don't lose your passphrase or you will be locked out.

Smaug 2y ago

And because the pass phrase is different, they are not able to be linked together!?

🍊⚡adam sandals 2y ago

Right. They're completely different wallets.

BIP85 is another very cool feature that coldcard supports. It allows you to derive a new 12, 18, or 24 word seed based off a master seed. If one of the derived seeds is compromised, the master cannot be determined. However, as long as you have your master seed, all derived seeds from that master can be recreated.

Steven Day 2y ago

Yeah. I’ve done a set up like this.

When you want to sign with a specific passphrase you can add the passphrase and then you can remove it or change it to “move” to signing different wallets.

The addresses have zero correlation with each other and will effectively be totally different xpriv and xpub keys.

Just exercise caution on protecting those seed words because those being compromised may not directly expose your coin but then there is just the passphrase to guess. Trade offs…