NFCのトピックRe: SL1 Authentication MiFare Plus with 7 bite UID

SL1 Authentication MiFare Plus with 7 bite UID

fomin-ruslan32 — Fri, 24 Jul 2020 11:48:56 GMT

Hi, everyone!

I want to develop a Mifare Plus Card Reader with the CLRC663, i realized SL1 authentication for 4 byte Mifare Plus cards. I used the authentication command imbedded into IC CLRC663.

But I can't do an authentication for 7 byte Mifare Plus cards. I can only read UID and do RATS and PPS comands .

In iso 14443-4 and CLRC663 datasheet don't show how to Authenticate 7 byte cards.

Please help me, how to do this.

Thank you so much.

Re: SL1 Authentication MiFare Plus with 7 bite UID

Kan_Li — Tue, 28 Jul 2020 09:17:54 GMT

Hi,

Actually SL1 is used for Backwards Compatibility Mode, you may use it as if it is for a MF classic card, and it also provide an optional AES authentication to move to SL1 MFP authenticated state, without affecting the MIFARE Classic 1K/4K functionality. but I am thinking you are referring to the MF classic authentication method, right? if so, you just need to refer to the following for details.

https://www.nxp.com/docs/en/data-sheet/MF1S50YYX_V1.pdf

Hope that helps,

Have a great day,
Kan

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Re: SL1 Authentication MiFare Plus with 7 bite UID

fomin-ruslan32 — Fri, 07 Aug 2020 13:50:00 GMT

Hi, Kan Li!

Thank you for your answer.

Yes, you are right. I used classic authentication. In the last text I wrote SL1, this is not correct.

The problem is this: I can authenticate my bank card and read any block. Its uid is 4 bytes. And I have MiFare Plus SE 1K 7b. I've read MF1S50YYX_V1.pdf which you've sent to me then I ran the Select Card command, but the authentication failed. I used three sets of sequences but none helped.

Example of sequences:

Sequence 1 CL2 bytes (UID3...UID6)

Sequence 2 CL1 bytes (CT, UID0...UID2)

Sequence 3 4-byte NUID/RID (UID0...UID3)

I don't now what to do next

Re: SL1 Authentication MiFare Plus with 7 bite UID

Kan_Li — Mon, 10 Aug 2020 09:24:39 GMT

Hi Ruslan,

As I know, This product is delivered in SL0, so you have to switch it to SL1 to use it as a MIFARE Classic EV1 card.

Have a great day,
Kan

Re: SL1 Authentication MiFare Plus with 7 bite UID

fomin-ruslan32 — Wed, 12 Aug 2020 09:23:56 GMT

Hi, Kan Li.

I don't understand how to switch to SL1 level.

Is there a way to switch levels in NfcNxpLibrary?

Maybe you recommend an article for me to understand correctly.

I am developing Nfc reader for home access systems.

I've the STM32F207 and CLRC663. They communicate via I2C interface.

I was given two keys MiFare Plus SE 1K. I know their AES keys, correct data in a specific sector.

Even so i still can't read them. I only implemented information that I found publicly.

Maybe i need security information?

Have a great day,
Ruslan.

Re: SL1 Authentication MiFare Plus with 7 bite UID

Kan_Li — Thu, 13 Aug 2020 06:34:30 GMT

Hi Ruslan,

This kind of info is available in the data sheet, and you may find them in the docstore as shown below, but you have to sign NDA at first. Please contact your local Disty for further help on this.

Have a great day,
Kan

Re: SL1 Authentication MiFare Plus with 7 bite UID

fomin-ruslan32 — Thu, 13 Aug 2020 07:39:59 GMT

Hi, Kan Li.

Thanks a lot!!

Have a great day,

Ruslan