https://community.nxp.com/t5/S32K/MASTER-KEY-as-encrypt-key/m-p/1438846#M14784 <P>Can I use master key for a encrypt job? All the time I used user keys, they work fine, but as I load encrypt with master key ID, s32 says that key is invalid. Is it possible at all, or master key is for authorisation and loading other keys only?</P> Tue, 05 Apr 2022 11:20:20 GMT RedOne 2022-04-05T11:20:20Z https://community.nxp.com/t5/S32K/MASTER-KEY-as-encrypt-key/m-p/1438846#M14784 <P>Can I use master key for a encrypt job? All the time I used user keys, they work fine, but as I load encrypt with master key ID, s32 says that key is invalid. Is it possible at all, or master key is for authorisation and loading other keys only?</P> Tue, 05 Apr 2022 11:20:20 GMT https://community.nxp.com/t5/S32K/MASTER-KEY-as-encrypt-key/m-p/1438846#M14784 RedOne 2022-04-05T11:20:20Z https://community.nxp.com/t5/S32K/MASTER-KEY-as-encrypt-key/m-p/1439588#M14812 <P>Hi Denis,</P> <P>no, that's not possible. MASTER_ECU_KEY can be used only to update other keys or to reset the device back to factory state. This behavior is given by SHE specification.</P> <P>Regards,</P> <P>Lukas</P> Wed, 06 Apr 2022 09:17:42 GMT https://community.nxp.com/t5/S32K/MASTER-KEY-as-encrypt-key/m-p/1439588#M14812 lukaszadrapa 2022-04-06T09:17:42Z