Keychain

iOS Keychain

In this article I’m trying to study how keychain works.

Metaphor

There once lived a monkey 🐒 George. He was a nice fellow, but his memory suck too much and caused him a lot of trouble. He also was very absent-minded and has lost some of his secret keys. He met a bird 🐔 Marvin and said: “Marvin, my memory is no good, here are all my keys 🔑🔑🔑🔑 , I will just retain this small key-card 🎴 which I will show you to prove it’s really me. Whenever I need a key, I’ll show you this card. You give me the key 🔑 temporary and then take it back after I used it 🔐 .”. Marvin was a very responsible guy and he agreed.