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Are Intel PTT (Intel Platform Trust Technology) and TPM chips functionally equivalent?
If I had a board with a Intel processor that supported PTT, would I have the same functions as if I had a hardwired TPM chip, e.g support of Trousers, etc.?
How do you discover if a particular Intel processor supports PTT?
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Intel® Platform Trust Technology (Intel® PTT) - Intel® Platform Trust Technology (Intel® PTT) offers the capabilities of discrete TPM 2.0. Intel PTT is a platform functionality for credential storage and key management used by Windows 8* , Windows® 10 and Windows* 11.
If your computer is based on the 8th Generation or later Intel® Core™ Processor family, you can rest assured knowing your system has Intel® Platform Trust Technology (Intel® PTT), an integrated TPM that adheres to the 2.0 specifications.
Most newer Intel CPUs feature a TPM inside of the CPU itself, which it calls Platform Trusted Technology.
Windows 11 does not recognize the Intel® Platform Trust Technology (Intel® PTT) as a valid TPM 2.0 chipset.
The Intel Platform Trust Technology (PTT) architecture, first introduced in 2013 on 4th generation chips, implements TPM functionality within the CPU. PTT fully supports all Microsoft’s requirements for firmware Trusted Platform Module (fTPM) 2.0 specification.
To your operating system and applications, there should be no discernible difference between using PTT or using a dedicated TPM chip.
You will typically have an option in your firmware configuration utility to enable or disable PTT if your processor supports a fTPM. On Windows, you can check if you are using a TPM or a fTPM (PTT) by running TPM.MSC. On Linux, check under /sys/class/tpm, sys/kernel/security/tpm or your boot log.
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