Hi,
Based on the example in the AN12196 document, combined with the NTAG 424 DNA - Secure NFC T4T compliant IC document, the following issues were encountered when implementing ChangeKey:
1)exist Case 2: Key number to be changed = Key number for currently authenticated session（ In the example in document AN12196, when modifying the value of KeyNo0, the modified key value is used for AuthenticeEV2First. The response code returned by Part 2 of AuthenticeEV2First is 91AE. Even if the modified key value is set to the initial default 16 byte 0, the authentication still fails. What is the reason for this?
other Question:
1)How to set placeholders when mirroring? Why is it 0? Can there be any other placeholders?
2）The setting of SDMMACInputOffset seems to have an interval range that can be set. Does different values have any impact?
Looking forward to your support.
Thank You!
