Safe little classroom😀

The difference between "signature" and "authorization" when using a wallet:

1) Signing is an active act, and authorization is a passive act;

2) Authorization is a gas-saving mode derived from multiple signature interactions;

3) Sign once and the authorization can be used multiple times.

In other words:

Signature ≈ face/fingerprint/password verification

Authorization≈activate quick payment/password-free payment