https://community.nxp.com/t5/i-MX-Processors/Debugging-CAAM/m-p/1331748#M179327 <TABLE><TBODY><TR><TD><P>Hello,<BR /><BR />I am trying to add support for HMAC-SHA256 using black keys.&nbsp; I have modified the CAAM code to do this and it runs without error, but it produces the wrong output.&nbsp; To debug this I would like to be able to duplicate what the CAAM does.&nbsp; I am generating a CAAM key with `caam-keygen create black_key ecb -t abcdef0123456789`.&nbsp; I was expecting that&nbsp; the generated file would contain abcdef0123456789 encrypted with the contents of /sys/kernel/debug/30900000.crypto/ctl/kek, but this does not seem to be the case.&nbsp; Do you know how the black key is created?<BR /><BR />Thanks,<BR />Gareth</P></TD></TR></TBODY></TABLE> Mon, 30 Aug 2021 11:16:45 GMT garethphillips 2021-08-30T11:16:45Z https://community.nxp.com/t5/i-MX-Processors/Debugging-CAAM/m-p/1331748#M179327 <TABLE><TBODY><TR><TD><P>Hello,<BR /><BR />I am trying to add support for HMAC-SHA256 using black keys.&nbsp; I have modified the CAAM code to do this and it runs without error, but it produces the wrong output.&nbsp; To debug this I would like to be able to duplicate what the CAAM does.&nbsp; I am generating a CAAM key with `caam-keygen create black_key ecb -t abcdef0123456789`.&nbsp; I was expecting that&nbsp; the generated file would contain abcdef0123456789 encrypted with the contents of /sys/kernel/debug/30900000.crypto/ctl/kek, but this does not seem to be the case.&nbsp; Do you know how the black key is created?<BR /><BR />Thanks,<BR />Gareth</P></TD></TR></TBODY></TABLE> Mon, 30 Aug 2021 11:16:45 GMT https://community.nxp.com/t5/i-MX-Processors/Debugging-CAAM/m-p/1331748#M179327 garethphillips 2021-08-30T11:16:45Z