A key is a pair
The two halves of a key pair: the public half you hand out and the private half that never leaves your machine, with a made-up placeholder in place of a real key. Lesson 9 of the course Vibecoding from zero with t27.
Proving who you are without a password
- Make a pair on your machine
- Give the host the public half
- The host sends a challenge
- Only the private half can answer
| Half | Who gets it | Where it may go |
|---|---|---|
| Public | The host and anyone | A host, a chat, a repository |
| Private | Only you | Nowhere: it stays on your machine |
Every key text on this page is a made-up placeholder, not a key. Never paste a real private half into a prompt.