How to decrypt saved Wi-Fi password?

Question

WiFi

Hello, I need to find out the password for the Wi-Fi to which I am connected, there is no access to the control panel. There is no access to the router. The password is stored on the device in the form of this:

e6c2375f534df8b4e1d9051cc0d4a20f

I took this as an example, in fact, I need another one.
I think before passwords were stored on the device without encryption, since when are they stored in encrypted form?

Answer 1

with the key if it's not a hash