Hi @JungHo-K1m
If you simply want to sign-in, then this is possible. Unfortunately, we do not have a nice reference implementation to follow. I outlined in this thread what would need to be implemented.
Also, take a look at this example, that uses Auth0 as an identity provider: GitHub - ilbertt/ic-react-native-jwt-auth: React Native (Expo) + JWT Authentication + Rust ICP canister
I hope this helps. 