Alan JoUser Identification Flow
Give Authority After Authentication
인증 방법은 보안과 사용자 경험 사이의 균형을 맞추는 어려운 문제
Information that could prove an identity of a principal
- What you know
- What you possess
- What you are
- Where you are
3 Parts to User Authentication: Registration → Authentication check → Recover
Authentication Notion
Authentication Usages
