2020-02-12T09:18:40ZFluxBBhttp://www.proxmark.org/forum/viewtopic.php?id=7553.]]>http://www.proxmark.org/forum/profile.php?id=547822020-02-12T09:18:40Zhttp://www.proxmark.org/forum/viewtopic.php?pid=38141#p38141just check if you can authenticate to specific sector with this key or not
or like here: https://github.com/Proxmark/proxmark3/blob/master/client/scripts/mifare_autopwn.lua