Comment by ses1984
19 days ago
Another solution is to engrave your secret on something that’s stable up to household fire temperatures.
19 days ago
Another solution is to engrave your secret on something that’s stable up to household fire temperatures.
A real innovation from the Bitcoin world! There are several physical password store systems that they have suggested for this kind of use case. The simplest is basically using a nail to punch out a password onto a piece of sheet metal.
Articles such as https://blog.lopp.net/metal-bitcoin-seed-storage-stress-test... will help you pick among the various seed stores out there.
And so we return to our programming-roots with punchcards. :p
Additionally hardware wallets which can use a seed to generate huge variety of keys.
Including AGE keys (so you can encrypt arbitrary data), SSH keys, FIDO2 and passkeys.
Additionally you might want to store a hardware wallet in a deposit box instead of the seed (if you trust the security model).
Just make sure that the metal you use has a high enough melting point.
Do people usually find big pools of metal on the ground in burned houses, or is everyday metal fine?
Especially inside a fireproof safe.
Wouldn't trust aluminium, solder, Wood's metal, gallium, or mercury, but apart from that...
Maybe a clay tablet (assuming it's safe from water)?
Tungsten, perhaps.