Forum › MIFARE SDK › What's differences are between the TDEA -Desfire and the TDEA-ISO10116(crc16) -k › Reply To: What's differences are between the TDEA -Desfire and the TDEA-ISO10116(crc16) -k
Hello Juha,
The NXP application note AN1823 “MIFARE SAM AV2 – Key Management and Personalization” explains in chapter 2 “Key types and classes”: that the Host Key can only be of type AES128 or AES192. Only the Host Key can be used in commands SAM_AuthenticateHost, SAM_LockUnlock etc.
As I said in my previous post, you should not spend a lot of effort to use “weak” keys 2K3DES or 3K3DES. You can use this keys to authenticate to a PICC only.
Regards,
The TapLinx team
The NXP application note AN1823 “MIFARE SAM AV2 – Key Management and Personalization” explains in chapter 2 “Key types and classes”: that the Host Key can only be of type AES128 or AES192. Only the Host Key can be used in commands SAM_AuthenticateHost, SAM_LockUnlock etc.
As I said in my previous post, you should not spend a lot of effort to use “weak” keys 2K3DES or 3K3DES. You can use this keys to authenticate to a PICC only.
Regards,
The TapLinx team
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