<![CDATA[Is there no way to show a script-generated welcome message on gdm/GNOME?]]>Is there no way to show a script-generated welcome message on gdm/GNOME? 🤔

I had an security idea where the welcome message would be a sha512 hash, created with todays date + time (15 minutes interval) + pre randomly created static salt.

When you are about to login you check the hash against a hash you created on your phone.
If it's the same hash, you know it's your computer and not a honeypot someone put there to get your password. 🔑

]]>https://board.circlewithadot.net/topic/78d99e2e-a884-4fee-9a90-cd99446454d5/is-there-no-way-to-show-a-script-generated-welcome-message-on-gdm-gnomeRSS for NodeFri, 01 May 2026 11:51:05 GMTSat, 25 Apr 2026 17:34:37 GMT60<![CDATA[Reply to Is there no way to show a script-generated welcome message on gdm/GNOME? on Sat, 25 Apr 2026 17:48:28 GMT]]>@fabiscafe
How do they work?
They don't leak any data if you plug them in a honeypot device and use them?

]]>https://board.circlewithadot.net/post/https://n3.mikronod.se/ap/users/116425691858978235/statuses/116466601707305062https://board.circlewithadot.net/post/https://n3.mikronod.se/ap/users/116425691858978235/statuses/116466601707305062Sat, 25 Apr 2026 17:48:28 GMT<![CDATA[Reply to Is there no way to show a script-generated welcome message on gdm/GNOME? on Sat, 25 Apr 2026 17:45:40 GMT]]>@spacebug why not just use a fido device to login?

]]>https://board.circlewithadot.net/post/https://mstdn.social/users/fabiscafe/statuses/116466590685389277https://board.circlewithadot.net/post/https://mstdn.social/users/fabiscafe/statuses/116466590685389277Sat, 25 Apr 2026 17:45:40 GMT<![CDATA[Reply to Is there no way to show a script-generated welcome message on gdm/GNOME? on Sat, 25 Apr 2026 17:42:40 GMT]]>The creation of the hash should probably also include for example an "x", indicating that no USB-event has happend (no one has plugged in or out any USB-device).

]]>https://board.circlewithadot.net/post/https://n3.mikronod.se/ap/users/116425691858978235/statuses/116466578928717685https://board.circlewithadot.net/post/https://n3.mikronod.se/ap/users/116425691858978235/statuses/116466578928717685Sat, 25 Apr 2026 17:42:40 GMT