Key rotation (replacing a key in the Casa app)

The Casa app makes it easy to replace a key in your vault keyset with another one.  

You may replace a key for several reasons: 

  • Your key was lost or damaged
  • You believe the key or the backup seed phrase may have been compromised
  • You wish to replace the key with a different one (e.g., to upgrade to a newer device)

This is also known as "rotating a key," or "key rotation."

The Casa app allows the mobile key and any of hardware keys to be replaced.

Please note: For the 3-key vault, we consider saving a copy of your hardware device's seed phrase to be optional. If you do have a copy of the seed phrase, you could use it to restore the key on a new hardware device without replacing the key, in which case it would not be necessary to complete the following steps to set up a new device.

Replacing a key in your vault in the Casa app is easy!

Replacing one of the keys in your vault will create a whole new vault. Once it's set up, you'll need to send an on-chain transaction to move your funds from the old vault to the new one.

Before you begin, check that your other keys are working!

Perform a health check on your mobile key and hardware key(s), and for the 3-key vault, verify your recovery question answers.

Marking the old key for replacement:

After you've verified your other keys are operational, the next step is to mark the old key for replacement:

  1. Tap the key icon beneath your vault
  2. Tap the key you want to replace (mobile key or one of your hardware keys).
  3. Tap "Replace Key."
  4. Read the explanation.
  5. Tap "Yes, Confirm."

Setting up the new key:

This follows the same procedure as when you added a key to the Casa app for the first time, and depends on which kind of device you're setting up. In general, the steps are:

  1. Tap "Begin Replacement Process."
  2. Tap "Send email."
  3. Click the link in the email on your computer and follow the instructions for your device.

Once this is finished, your new keyset is ready to receive funds!

Transferring your funds to your new vault:

You now have a whole new vault in your Casa app! But your funds are still in the old one. This part of the process looks different depending on whether you do or do not still have your original key.

If you DO have the old key:

You can sign the recovery transaction using your old keys. Remember: To move funds from the old keyset, you have to use the old keys. The new key cannot sign for the old keyset.

We recommend choosing "Guided recovery," which will walk you through creating the transaction, setting the amount of the transaction (the full balance), and determining the address to send to (the address for your new vault).

Once you've signed with both keys, the funds will transfer to the new keyset, and you can reset or dispose of your old key!

If you DO NOT have the old key:

You'll have to sign the recovery transaction using the key you do still have, and then request that Casa sign with the Recovery Key.

We recommend choosing "Guided recovery," here too. You will have to answer your security questions and wait seven days for the Casa Recovery Key signature, then go back to the Casa app to finalize and send the transaction.

Once your funds have transferred to the new vault, you're ready to go!

One last thing:

If you had saved your Casa address anywhere, like whitelisting it on an exchange, be sure to update it to an address from your new vault.

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