How do you backup your TOTP codes and security keys on the passport prime? Is that where the NFC cards come in?
No, the NFC cards are for keeping Shamir shares of the master seed only.
There is also an encrypted file containing app data that will be either sent to the Foundation server when opted into our Magic Backup service, or downloaded and stored locally by you.
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So is everything derived from the master seed? TOTP codes and security keys even?
Those won’t technically be derived from the master seed, but will be stored in the encrypted backup file.
Paging @Ken in the hope he can provide some more context here.
So say you have a passport prime with your 2fa codes and security keys on it, you could make an encrypted backup onto a usb or sd card so if your device was lost or broken you could buy another passport prime, restore the backup and you would have all your security keys and codes on it?
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Yes exactly. And all of this is encompassed and handled automatically for you with Envoy+. Free, for life, for Early Access Device customers!
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Would the magic or manual back-ups of encryted app data include some (air locked or not) or all of the files in the files app?
We are planning to support that for subscribers to Envoy+.
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