I'm doing a 1 vs 1 game with online and local mode.
The player wins rounds and unlocks levels and characters, that information should be saved on disk.
File that stores the following data:
Player's name
unlocked characters
unlocked levels
won rounds
So I think that I have to store this information locally, so I thought about using JSON.
But if I do not encrypt the data, the player could alter it and unlock everything.