[coreboot] Are any Chromebooks able to run fully libre?

Patrick Georgi patrick at georgi-clan.de
Thu Jan 2 21:38:46 CET 2014

Am 02.01.2014 21:31, schrieb Sam Kuper:
> I see that coming within case 2. The Intel CPU microcode I gave as an
> example has this problem, IIUC. Perhaps I'm wrong, but I see it as
> being like the Content Scramble System (CSS), AACS, etc, and we're
> waiting for someone to create the equivalent of DeCSS, etc, so that
> libre (or at least open source) alternative microcode can be made to
> exist that would actually work on the CPU.
For CSS and AACS, the organizing body has to provide keys to vendors, 
and keep all of them compatible with pretty much every disc out there.

Here we have one vendor, and the files are typically not transferrable 
across chip versions, so they can create a new key for every version, 
limiting the impact.

If I remember things correctly, Intel uses RSA-2048 signatures on a 
SHA256 hash. The capability to crack such a scheme probably provides 
more lucrative opportunities than firmware freedom and that makes me 
guess people would routinely do it, if possible.

How about simply refusing to pay for malfeatures like these instead of 
increasing the platform's value for vendors that absolutely don't want 
you to do it for them (as expressed by both their conduct and their 
signature scheme)?


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