On Thu, 2023-06-22 at 16:31 -0700, Erdem Aktas wrote: > So while I like the suggested direction, I am not sure how much it is > possible to come up with a common ABI even with just only for 2 > vendors (AMD and Intel) without doing spec changes which is a multi > year effort imho. I don't want to intervene the discussion around whether this direction is correct or not, however I want to say request_key() may not be the right place to fit Quote (or remote verifiable data blob in general for attestation). > request_key(coco_quote, "description", "<uuencoded tdreport>") Although both key and Quote are data blob in some way, Quote certainly is not a key but have much more information. The man page of request_key() seems to suggest it's just for key: request_key - request a key from the kernel's key management facility So IMHO using request_key() to fit Quote may cause bigger confusion.