Cybersecurity

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Could someone explain to me exactly what this feature is? (www.phoronix.com)

submitted 6 months ago* (last edited 6 months ago) by [email protected] to c/[email protected]

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The article says the following:

Linux 6.10 is introducing support for Trusted Platform Module (TPM2) encryption and integrity protections to prevent active/passive interposers from compromising them. This follows a recent security demonstration of TPM key recovery from Microsoft Windows BitLocker being demonstrated. TPM sniffing attacks have also been demonstrated against Linux systems too, thus the additional protections be made with Linux 6.10 to better secure TPM2 modules.

I'm a little confused with this article. Is it talking about implementing TPM parameter encryption? If so, does this mean that the TPM bus prior to kernel v6.10 was unencrypted? Will this kernel feature still require a patch to be made to software like systemd-cryptenroll? Are the sniffing attacks that it's talking about examples of MITM attacks like this? Does windows encrypt the TPM bus?

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[–] [email protected] 1 points 6 months ago

Manufacturing and boot processes have to be modified to make sure nothing leaks out and everything stays put.

Meaning that software like systemd-crytpenroll would need to be updated to support this? I suppose what I'm trying to ask is this: As a user, if I want to set up full disk encryption using a TPM (1.2 or 2.0?) module, would I need to do anything different/novel during installation if I wanted to ensure that the bus is encrypted? And, if so, what would I need to do?