Finnbarr P. Murphy does not blog often, but each post is usually very well written, and often focused on using some UEFI Shell commands to do some specific task. In the current post, the topic is accessing TPM’s features from the UEFI Shell, and it is called “part 1”, with more to come!
“Why an I writing this series of posts? Because there are few published examples of working UEFI code that interacts with a TPM. Such example code is useful to security researchers and computer forensics practitioners.”
http://blog.fpmurphy.com/2016/02/accessing-tpm-functionality-from-uefi-shell-part-1.html
Firmware Security 