I doesn't knew Coreboot isn't fully-free (e.g. contain binary-blobs).
Wikipedia states that it's released under under the GNU GPL and doesn't
specify additional licenses. It's a shame, that Coreboot went the same way
like Linux did.
Nevertheless, if I'm stated in a position to make a decision btw. a 90% free
software, or a 100% pure proprietary BIOS, I'll rather choose the prior. This
doesn't change my mind because it's easier to reverse-engineer some code,
rather than the whole, and possibly there will be someone who can make it and
do it himself.
That cryptographic thing bothers me the most, because it prevents
reverse-engineering of the blob, and make the whole process that is itself
very hard to do, even harder.
Anyway, thanks for the clarification .
P.S.: Isn't this Phoronix article I read a long time ago the same thing
you're talking about?