Cryptographic Identity Solutions
- Keybase
- PGP
- Not allowed multiple keys, keys have expiry date, or they can sign a message saying they should not be used
- Matrix Protocol
- Each device says it has a signing key, but all the rooms still have their own symmetric key
- Nostr DNS Identities
- Link a cryptographic key to a DNS entry
- Mintter Identities
- IDK what they are trying to actually do here, a single key per user I guess
- Technically ENS
- Same as Nostr
- Works like encrypted Linktree
- Scuttlebutt
- I would have to research this
- Git + PGP
- TLS certificates
Backlinks