Passport Prime first Questions

Passport Prime
1

Time for a Passport Prime community category? :grin:

Looking forward to getting my Passport Prime!

  • Confirming the battery will NOT be replaceable?
  • Understand there will be an app market. Will the Prime ship stock with a simple password keeping app?
  • When using Magic Backup Shamir w/ NFC cards, will we be able to also view & write down a standard mnemonic?

Thanks guys and keep up the great work!

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Hey,

Moved your post to our new Prime category :smiley:

  1. Correct
  2. Not at launch, but it is a top priority.
  3. Of course!
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Thanks!

A follow up question: If we use magic backup w/ NFC cards, and Foundation were to disappear overnight, would we be able to use only the 2 physical cards to recover the wallet if we don’t have access to a Foundation device? This would be impossible without having a standard mnemonic, correct?

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Hey @Satoshi_Nakamoto, thanks for the followup question!

While the details are currently being worked out, it’s in our best interest for users to be able to recover from two cards without Foundation or a Passport Prime, so we will work on an independent tool to recover the seed in a disaster scenario.

We will make sure to make an announcement when the tool is ready.

Hope this answers your question! Thanks!

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Thanks! Love what you guys are doing in the space.

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A follow up on backups here:

I read the FAQ’s. Thanks for posting! I see that magic backup will backup the metadata.

  1. Is it possible to backup our encrypted file storage as well?

  2. This new NFC Shamir backup replaces the micro SD & recovery code method currently used on my Passport, correct?

  3. If our encrypted file data will not be included in the magic backup. Would you suggest using a different method, like a micro SD with USB-c adapter?

Thank you!

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I’ll have to grab you some clarification here on Monday, but here is how I’m pretty sure this is gonna work…

  1. Files on the file browser will not be part of the magic backup (for now), but you’ll be able to transfer any and all files to or from the device whenever you like for offline storage.
  2. Yes, but don’t forget that if you’re a manual user then you’ll still need an external storage medium (like an SD card) to store the metadata that will be encrypted by the shamir’d seed.
  3. Yes, or you can insert a USB thumb drive
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For the secured files — will there ever be a feature in which those be accessible/attainable via the Envoy app over bluetooth? Meaning, can I connect to the Prime using Envoy, view the stored files metadata, and download any I want from my Prime to my Phone/device (or transfer over bluetooth to Prime)? Would be useful for keeping files off iCloud unless needed (tax returns, pictures of drivers license, legal docs, medical records).

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I don’t see why we wouldn’t be able to offer that option in the future.

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Are the 2/3 NFC card backups split using some standardized implementation of shamir splitting, and readable with standard NFC readers?

I’d like to know too whether there’s a reasonable path to recovery with the 2 NFC cards, without relying on Foundation app or servers. That should generally be the standard - that there’s some way to recover keys from backups entirely on your own, long after the hardware vendor disappears or stops supporting past hardware.

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I believe if you don’t want to rely on Foundation’s servers, you will need to use all 3.

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The Keycards are used to create a simple and secure 2-of-3 Shamir backup of the Passport Prime master private key. Under the default setup, 2 of the KeyCards secure a share each, with the third being encrypted and stored securely in the user’s iCloud Keychain or Android Auto-Backup. Advanced users that do not wish to secure a share in their personal cloud can leverage the third KeyCard to store the third share.

Our implementation follows the standard Shamir Secret Sharing h, and later in the year we plan to release a simple open source tool that can help reconstitute the master key from a threshold of shares using your phone or computer. This will act as a mitigation against the extremely unlikely event that your Prime breaks and Foundation no longer around.

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Will there be an option to export a .json for backing up 2FA secrets in case of device malfunctioning?

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Not at launch, but something we can easily add down the line.

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