Add "No password" checkbox

[naaraxi]

Fixes #920

[GameTec-live]

Are you sure that such a long hint text fits on mobile?

Also: Idk if you can call 00000000 removing the password? youre still setting one its just 00000000?

[naaraxi]

Fair, but in that case I'll update the firmware with a proper no_password flag as well, to keep consistent.
Should be ready soon.

[GameTec-live]

What would be the benefit of adding a firmware flag?

[naaraxi]

It's done for RfidResearchGroup/ChameleonUltra#436 , I guess the benefit is the requested feature being added.
My initial PR was for the "no password" feature using 00000000 as the password, intercepting it and removing the password. But, as you mentioned, setting 00000000 as pwd and setting "no password" are conceptually different.
So, a better solution is using a "--no-pwd" flag as the initial person suggested.

Working on adding a checkbox for "no password" to the GUI.

[GameTec-live]

Correct me if im wrong, but to the best of my knowledge there is no way for a t55 to not have a password set?

[naaraxi]

Password enforcement is gated by the PWD enable bit in the config block (block 0)
0 -> no password required, 1 -> require password from block 7
I've tested this via the Python CLI, and using a local build of the GUI 😄 (and proxmark)

[GameTec-live]

Ok, misread smthng then. Yeah, adding a no_password flag would probably be best then? Or maybe you can parse the "empty string" as no password? As then indeed 0 and no password are different.

[naaraxi]

Added a checkbox labeled "no password", that also disables the 'new key' field, same difference I guess :D If anything, it makes the "no password" more intentional