TinkerA padlock and its card for brightwater.example. Toy-size numbers.In the open: PADLOCK, brightwater.example
Chapter 6 of 7
Who owns this padlock?
An impostor could hand out padlocks in Brightwater’s name. Larkspur needs proof this padlock belongs to brightwater.example.
This chapter: How does a certificate prove who owns a public key?
About this chapter
You will learn
- A certificate ties a name to a public key
- Someone you already trust signs it
- Check the root, the signature, the name and the dates
Words you’ll meet
- Certificate
- A card naming the owner of a public key, signed by someone you already trust.
- Certificate authority
- Who signs certificates, after checking the name belongs to the asker.
- Root
- A certificate authority your computer trusts from the start.
Step 1 of 4
The padlock comes with a : a card naming its owner, signed by a .
Predict what makes Larkspur trust it.