I try to use aes-gcm from caam to disk partition encryption on my ls1046ardb. It works good if I use a plain text key. If I try to use a black key, I will get this error: caam_jr 1720000.jr: 40000206: DECO: desc idx 2: Invalid KEY Command.
It depends on ENC flag state in the KEY command field. If this flag is set, I will get an error. But I need to set ENC for black key decryption.
I use a black key with aes-cbc and aes-xts without any problems.
Advise me, please, how can I use black key for encryption/decryption operations with aes-gcm?