Proxmark3 community

Mohammad

Contributor

Registered: 2020-05-12

Posts: 9

SAK(Select Acknowledge), For mifare classic 1k , 2k

ّI find a Interesting result in test a card with syntax  hf search
result is:
====================
UID : ** ** ** **         
ATQA : 00 04                   
SAK : 19 [2]
proprietary non iso14443-4 card found, RATS not supported         
No chinese magic backdoor command detected         
Prng detection: WEAK         

Valid ISO14443A Tag Found - Quiting Search
=====================

This result show that SAK=19 .  In
https://www.nxp.com/docs/en/application … N10834.pdf talk about SAK and said that
SAK=19 is for Mifare classic 2k

but i can find key  with use of syntax hf mf chk * ? t but to discover all the keys
i used of  hf mf nested 2 0 A ffffffffffff d  for find mifare classic 2k keys
But Ican't find any key

I use of syntax hf mf nested 1 0 A ffffffffffff d  ( this syntax used for mifare classic 1k)
Then i can find 16 key sectors.

Question:
When i do dump and restore this card to a ID changeable mifare classic 1k card
restore is complete but this card  can't access to me.
why?

Json50

Contributor

Registered: 2018-08-30

Posts: 21

Re: SAK(Select Acknowledge), For mifare classic 1k , 2k

This is ADEL card