Blockstream Jade will ask if you want to export the master blinding key when setting up a Liquid wallet.
Note: You will need to export the master blinding key if you want to use Liquid singlesig accounts, only if you initialized your Jade using the Advanced path of the wizard.
The master blinding key:
- is the key that encrypts and decrypts the amounts and assets of your liquid transactions, making them confidential on the public Liquid network
- it is not an xpub or a pubkey, so it doesn't allow to re-create your addresses
- it is not a private key to spend your Liquid assets, it only allows to reveal the amounts and assets
Choosing to export the master blinding key from your Blockstream Jade to a companion app will improve your experience while using Liquid wallets.The performance improvements include noticeably lower loading times for most actions. In fact, your companion app will be faster at:
- Loading transactions and balances
- Generating new addresses
- Creating transactions
However if you export your master blinding key and use your Blockstream Jade with a compromised companion app, an attacker can see all the assets and amounts associated with this wallet (although your funds will still remain safe).