Forum › MIFARE SmartCard IC`s › Key incjection from AV2 to Desfire EV2 › Reply To: Key incjection from AV2 to Desfire EV2
Hi Matej,
The key rolling is unidirectional after the finalizing. You cannot roll back the key set of a MIFARE DESFire EV2. With the SAM AV2 you can change only the current key set.
But you should think to use the SAM AV3. There are more options for the DESFire EV2. One recommendation. Please have a look to this AN:
AN5070 Using multiple application keysets in MIFARE DESFire EV2
The TapLinx team
The key rolling is unidirectional after the finalizing. You cannot roll back the key set of a MIFARE DESFire EV2. With the SAM AV2 you can change only the current key set.
But you should think to use the SAM AV3. There are more options for the DESFire EV2. One recommendation. Please have a look to this AN:
AN5070 Using multiple application keysets in MIFARE DESFire EV2
The TapLinx team
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