WPS Configuration Methods

Jose Blanquicet blanquicet at gmail.com
Wed Feb 22 08:31:23 PST 2017


when "display" is set as config method for WPS, wpa_supplicant/hostapd
set also "virtual_display" in order to follow WPS technical
specifications v2.0. However, I checked them and they say for Display:

"A dynamic 4 or 8 digit PIN is available from a display. Version 2.0
devices shall qualify the display as Virtual (0x2008) or Physical

>From my understood, wpa_supplicant is mainly used on desktop and
embedded systems, in both cases the devices are mostly equipped with a
screen/display. Isn't it more appropriated to add "physical_display"
instead of "virtual_display"? According to the specifications:

Virtual Display PIN: "The dynamic 4 or 8 digit PIN is displayed
through a remote user interface. For example using the management html
page of an AP to obtain the dynamic PIN."

Physical Display PIN: "The dynamic 4 or 8 digit PIN is shown on a
display/screen that is part of the device. For example obtaining the
dynamic PIN from the LCD screen on a printer."

What do you think?


Jose Blanquicet

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