Mifare DesFire Authentication

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  • 14. July 2016 at 17:56
    Hello

    I registered to your docstore.nxp.com

    I have permission to Mifare Desfire EV1 but this datasheet doesnt contain chapter 4.1 with 3 mutual pass authentication example about you wrote in the 6th post.

    Can you send me where i can find datasheet :MIFARE DESFire EV1, Functionality of implementations on smart card controllers
    with chapter 4.1 example values



    Thx.

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    Re: Mifare DesFire Authentication

    5. August 2016 at 13:43
    Hello all, I want to ask about Mifare Desfire authentication.
    I did DES authentication and the result is 0x00 or OK but with the same method and flow, I did AES authentication and the result is 0xAE or authentication error. What I read before, my problem is IV for encryption. The initial IV is 0x00 (16 bytes) and I am not sure about the second IV.
    I have tried last 8 bytes of e(RndB) and followed by 0, whole e(RndB) as IV at second encryption but the result still 0xAE. Is there something I miss about the AES authentication?
    Thank you for the answer.

    Best Regards,
    Richard Kartiyanta
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