flipperdevices / flipperzero-firmware

Flipper Zero firmware source code

https://flipperzero.one

GNU General Public License v3.0

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[FL-3835] Ultralight C authentication with des key #3720

Closed RebornedBrain closed 2 months ago

RebornedBrain commented 3 months ago

What's new

Poller is able to pass authentication for Ultralight C cards protected by 16-byte key and read them
Listener is able to emulate Ultralight C cards protected by 16-byte key and also authenticate correctly

Verification

Poller:

Read Ultralight C card with key protection enabled
Select 'Unlock' menu item
Enter card key (you need to know it) and press 'Save'
Press 'Unlock' and apply card Result: All pages will be read

Listener (1st way):

Open saved Ultralight C card with key protection enabled on one Flipper
On another one start poller and perform all the steps from above for poller

Listener (2nd way):

Open saved Ultralight C card with key protection enabled on one Flipper
Put the card on proxmark 3 and enter such command: hf mfu cauth --key <hex> where is 16-byte key

Checklist (For Reviewer)

[x] PR has description of feature/bug or link to Confluence/Jira task
[x] Description contains actions to verify feature/bugfix
[x] I've built this code, uploaded it to the device and verified feature/bugfix