Proxmark3 community

T.

Contributor

Registered: 2017-09-20

Posts: 20

Hotel 1 k Classic

Hello Again,

After fixing my proxmark in the previous thread, I have now a question about how to properly analyse data on the card.
I am in an hotel which use mifare classic 1k for the elevator as for the room (same card for both)

I was wondering on how they store the data on the card.
If I sniff the card in between the elevator on the card and in between the room and the card will I be able to see where they store the data on the card ?

Thanks

marshmellow

Contributor

From: US

Registered: 2013-06-10

Posts: 2,302

Email

Re: Hotel 1 k Classic

yes, if you know how to read the sniff.

gerza

Contributor

Registered: 2018-05-05

Posts: 14

Re: Hotel 1 k Classic

I think sniff an understand the codes is only for avanced users. It is necessary understand protocol perfectly

I only have read some about it . If anybody can explain it , is welcome

rayway99

Contributor

Registered: 2018-04-08

Posts: 20

Re: Hotel 1 k Classic

some hotels / elevators allow the access based on the card Unique ID mapped back to their database,  ( and some even use rolling-window to change your UID everytime you swiped to prevent the use of a cloned-card )
so there can be cases that no data meaningful at all stored on the card, thus save people the trouble editing the data in it