Memory update Protocol / update SHE KEY

[Mahendran]

Hello Team,

We have requirement to use Key id 1 for Master ECU key and key id 4 for Kmac. I have configured diagnostic job to update the Key Slot in SHE Module.

I am struggling to generate M1.. M5 value for AES128 algo  to update key for the development purpose.

Could you please let me know is there any standard tool or script available to generate M1, M2, M3, M4, M5 values for the Key for AES 128 algorithm.

Best regards,

Mahendran

[nxf45548]

@Mahendran, 

To provide you with better support, can you please let us know the NXP part number that you are using? 
Are you using a Kinetis, S32K, iMx? 

Regards, 

Susi

[KaleRushikesh]

I am also struggling with calculation of M1,M2,M3,M4 and M5 computation. I am working with S32k3xx development board.
I have one question, as we need ECU Master key to update any SHE-Key, but what is the default ECU master Key? And If i want to update ECU master key itself what will be the values for CID', AuthID, Authentication key value(K_AuthID).

[KaleRushikesh]

Any updates