How to design an encrypted file with this ? about go-keyring HOT 2 OPEN

I don't think this is something this project is useful for. It's based on the system keyrings where the use case is the user of the machine knows the keyring password and thereby can unlock whatever is stored there. If you can't provide the keyring password temporarily from "outside" then this doesn't protect anything.

from go-keyring.

Storing a symmetric encryption key in the keyring should be more secure than storing it in a file. It would be better secured against physical access as the keyring's contents are encrypted at rest.

The service and user values aren't meant to be sensitive. They can be set as plaintext config values passed to your app. The password is sensitive and should only be stored in the keyring.

from go-keyring.