The information contained in this document represents the. After a while without working on smartcards, here im back again with one and night-skipping doubt. Now if you want to communicate encrypted with the Desfire card you have first to send the plain data to the SAM module and get the encrypted data which you forward to the Desfire card. William, Apparently I gave you the wrong answer and might have led you down a path of much frustration. Optionally one laminator can be attached. In that code should i set POLY with 0x?
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Apdu command for authentication is: If you continue to use this site we will assume that you are happy with it.
Producte fitxa tècnica Gemalto IDBridge CLProx-P2 No classificats (HWP)
So why Desfire always send the results like that.? Here is my code: What problems You have with it? The first four bytes of hemprox result is your MAC. CAF0A is a create application command. Please look at my communication flow: I could successfully performed the Authentication command and I have a issue with ChangeKey, Please look at my situation mentioned below.
I used the Java crc32 method. Authentication with the specified key is neccassary to change the key 0X0E: Hemprox is the answer of my first question in January 22nd, at Could you please point out what I did wrong for this authentication.
Hi there, what are you using for communicating with the card.
A two byte CRC is calculated over the new key data 16 bytes and appended at the end. Here I post the output of my program. I was not encrypting the data in the correct way you know, all the xor before DES thing. Anyway, I guess that what I have to read about is the reader, and not the specs of the DESFire and the SAM, because the problem is not in the commands I have to send to them, but in the way to communicate with both at the same time.
To make this website work, we log user data and share it with processors. How to Load an application on DESfire card.
When reading data from a file bd 0c 00 00 00 10 00 00 0c specifies the file number, 00 00 00 specifies the starting index, 10 00 00 specifies the number of bytes to read. Hi, i am facing problem in changing card master key to AES.
So first i authenticate with the default key: In that case, I guess I should have to connect to the COM port where the reader is and then start sending Request commands until I detect a tag and send all the commands from the tag to the SAM and viceversa. These classes contain utility methods that help you construct native DESFire commands. You should use f9 if you want that the key is changeable. But the data-sheet is not yet standardized by an Icecat editor.
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And, could you try this code in your side if you have the hardware PN? Hi Tom, I try to answer your questions. Hi Alex it seems to be O. As you mentioned its my code block that build wrong session key.
If the keys is 16 bytes, then copy the first 8 bytes into bytes And the command should look like: To clearly document how to find out the computer spec of a computer, gemrox order to determine whether or not that computer will be compatible with Hosted. And it is my problem Best Regards Ali. Mustafa, typo and copy paste problem.