You're probably referring to "trusted computing" which is a very specific use of signing and attestation of computing states. If it is so specific, why is it p

You're probably referring to "trusted computing" which is a very specific use of signing and attestation of computing states. If it is so specific, why is it present in every single Intel CPU? And why aren't end users able to delete the built-in root of trust and replace it with their own? Trusted computing, as implemented by Intel, is actively hostile to the citizens of a free society. So in this case, I really can say that it denies software freedom to the user.