Why aren't passwords encrypted in the group shadow password file (/etc/gshadow)?

Question

linux

Why are passwords not encrypted in the shadow password file for groups ( /etc/gshadow ), but for users ( /etc/shadow ) everything is normally stored in encrypted form.
Through groupadd -p qwerty123 test the password is not encrypted why??
By default, is it necessary to configure something for groups? and how to make them encrypted there?

Answer 1

Because we read the documentation, and do not poke a finger into the sky. It became interesting, the first link in Google - www.computerhope.com/unix/groupadd.htm
We read. And we find out that the -p option does not ask for the password itself, but for a string already encrypted by crypt.

Answer 2

The encryption type is specified in /etc/login.defs and applies to both /etc/shadow and /etc/gshadow.
And I don't think it can be turned off. ENCRYPT_METHOD does not accept a method of type PLAIN