CR95HF reader Mifare Desfire secure mode

[HU jack]

Posted on June 06, 2017 at 07:55

1. è«‹å•� CR95HF 是å�¦æœ‰æ�?¯æ�´ Mifare Desfire secure mode çš„ command API ?

2. 目�在 M24LR-DISCOVERY demo board 無法正確讀�加密�的 UID ，都是 Random，請�有何解決方案?#

[Peter Boringer · Accepted solution]

Posted on June 08, 2017 at 18:00

Dear Jack,

The CR95HF chip provide all the necessary setup to access MIFARE Desfire  tag but the protocol used to address the secure area is under trademark and thus you have to check with your tag provider or NXP to get this part. Else you can develop your own code to program/ use the CR95HF with your tag. In any case the physical access RF is handled by the  CR95HF.

Regards

[HU jack]

Posted on June 12, 2017 at 05:06

Dear All:

��你，幫了大忙，一直困惑好久。

Regards

[anonymous.8]

Posted on June 15, 2017 at 11:16

Dear ST team,

does that mean that for any Mifare card (for example, Plus) I can read only it's ID (open) in Sector 0. And for reading other secure secors you will need Authetication procedure with native NXP device?

Or you can write your own algoritm which Authenticate Mifare tag with help of SendRecv(0x04) command?

Thank you.

[Peter Boringer]

Posted on July 10, 2017 at 15:49

Dear Uliana,

You are right, the CR95HF is able to access to Mifare card and with the help of the send receive command and a good knowledge of the Mifare  NXP proprietary protocol you should be able to go further.

Regards