logoalt Hacker News

Ajedi32 • today at 2:17 PM • 1 reply • view on HN

This is my favorite one yet, very user friendly. I only wish it was a bit more configurable. Ideally I'd be able to set up something like:

  3 of 4: A B C D
  - OR -
    2 of 3: E F G
    - AND -
    1 of 1: H
Or any similar combination. Maybe also with a way to name the cards so it's clear exactly what's needed when restoring.

Though there's something to be said for the simplicity of the current design.

Replies

compsciphd • today at 5:02 PM

that's just 3 shamir secret sharings.

key is protected by a 3 of 3 keys.

1 protected by 3 of 4 (i.e. SSS the key into a 3 of 4) 1 protected by 2 of 3 (i.e. SSS the key into a 2 of 3) 1 that just is.

so you take your original key and SSS into a 3 of 3.

you take part 1 and SSS into a 3 of 4, and take part 2 and SSS into a 2 of 3.

➕ show 1 reply