Reply To: DESFire EV1 Reset to factory default

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Re: DESFire EV1 Reset to factory default

12. May 2017 at 9:09
Hi Sheldon,

Of course, you can set the PICC Master Key to the factory settings if you change the current key to the default key and change the cipher from AES to 2K3DES (called native).

For me it makes no sense to do that, except for training purposes. As an issuer you should change the default cipher only once from 2K3DES to AES and never change it back. 2K3DES is a weak cipher and the factory settings are only for compatible reasons to the early DESFire product.

Regards,
The TapLinx team
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