https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2258212#M55242 <P><SPAN>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/257004">@xiaoweix</a>&nbsp;</SPAN></P> <P><SPAN>It’s up to user to track the keys. There’s no flag which would inform you if a key is loaded or not. And because Memory Update Protocol must be followed to import or update a key, it not possible to “load a key again”. There’s a counter for each key which must be incremented if you want to update a key. </SPAN></P> <P><SPAN>If you try to load the same key again (I mean with the same counter, so M1-M3 values are the same) then the key update won’t be successful and you will get error ERC_KEY_UPDATE_ERROR. </SPAN></P> <P><SPAN>There’s one workaround to check if a key slot is still empty or if it is already loaded. You can try to perform some operation (like encryption, decryption, CMAC generation…). If a key slot is empty, you will get ERC_KEY_EMPTY error. </SPAN></P> <P><SPAN>Regards,</SPAN></P> <P><SPAN>Lukas</SPAN></P> Tue, 09 Dec 2025 13:16:33 GMT lukaszadrapa 2025-12-09T13:16:33Z https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2257804#M55235 <P>CSEc有什么硬件标志可以读到这个密钥槽已经加载过密钥了？现在想通过读一个硬件标志来判断已经加载过授权key或者key8了，就不在加载了， CMD_GET_STATUS这个命令可以实现吗？</P> Tue, 09 Dec 2025 08:58:51 GMT https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2257804#M55235 xiaoweix 2025-12-09T08:58:51Z https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2258212#M55242 <P><SPAN>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/257004">@xiaoweix</a>&nbsp;</SPAN></P> <P><SPAN>It’s up to user to track the keys. There’s no flag which would inform you if a key is loaded or not. And because Memory Update Protocol must be followed to import or update a key, it not possible to “load a key again”. There’s a counter for each key which must be incremented if you want to update a key. </SPAN></P> <P><SPAN>If you try to load the same key again (I mean with the same counter, so M1-M3 values are the same) then the key update won’t be successful and you will get error ERC_KEY_UPDATE_ERROR. </SPAN></P> <P><SPAN>There’s one workaround to check if a key slot is still empty or if it is already loaded. You can try to perform some operation (like encryption, decryption, CMAC generation…). If a key slot is empty, you will get ERC_KEY_EMPTY error. </SPAN></P> <P><SPAN>Regards,</SPAN></P> <P><SPAN>Lukas</SPAN></P> Tue, 09 Dec 2025 13:16:33 GMT https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2258212#M55242 lukaszadrapa 2025-12-09T13:16:33Z https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2258495#M55253 好的，谢谢啦 Wed, 10 Dec 2025 01:07:10 GMT https://community.nxp.com/t5/S32K/S32K116-csecCMD-GET-STATUS/m-p/2258495#M55253 xiaoweix 2025-12-10T01:07:10Z