I have read the following: I don't see a seco command in uboot with iMX8X AHAB:
https://community.nxp.com/t5/i-MX-Processors/i-MX8X-permanently-revoke-a-SRK-key/m-p/1209783
1) In u-boot how do I revoke an SRK key?
2) Can I have two or more SRK keys up to four keys available at boot?
3) Can I revoke and replace a SRK key before closing with a key other than the four SRK keys? Can I create a new SRK table, reprogram the fuses, and replace the SRK key for example?
I answered you in case #00340318 you have created.