I’ve always liked this, it has pretty much everything you could want in a personal project: a catchy name and a whimsical idea that is just on the edge of being actually practical.

that’s super cool, almost zero use case but if you have a super sensitive string (such as a bank or wallet code) I guess it’s a good layer of offline security

Cool project :D probably not a real use case, but funny enough to try it out !!!

I love the way I would keep my stuff safe:

Now you just need to disperse the horcruxes around the house on various USBs or online locations and hope you can recall where they all are!

There is actually one use case for it. I create a yearly backup that i distribute across my friends (mostly via CD-ROMs) which include all my files that i can’t afford to lose, like encryption keys, keepass database, crypto wallets (everything that isn’t encrypted data gets aes-encrypted via gpg and a 512-bit key which is stored in the keepass database). But if say a malicious actor gets access to it by social-engineering they could start brute-forcing the keepass-database (good luck though with my passphrase and 10-rounds of argon2 with 4-threads and 4gig vector size), by splitting it into fragments that vector would be closed.

I always thought this was such a cool concept when I was administrating a Hashicorp Vault server. I made 7 fragments for 7 keyholders, and required that 4 or 5 of them (can’t remember) enter their fragments to unlock the Vault server.

I really like the name

This basically just means the files themselves become the authentication.

I don’t see a singe use-case, where you couldn’t just use normal private-key encryption and just save the private key to a file somewhere else. And if you want to distribute it to multiple locations, so that you need all of them, then there are also encryption methods for that.