In this post, I discuss a number of key TPM 2.0 features such as multiple algorithm support and PCR banks, and provide the source code for a UEFI shell utility to display the digests from the first 24 PCRs of a TPM 2.0 implementation.
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In this post, I show you how to decrypt the configuration file for a very popular PROLiNK ADSL router modem. This revealed an undocumented backdoor account with elevated privileges and other interesting configuration options and settings. In this post, I provide the source code for a UEFI shell utility to print out all the Platform Configuration Registers (PCRs) for a TPM 1.2 (Trusted Platform Module, version 1.2) and briefly discuss SRTM versus DRTM. This post discusses the UEFI 2.4 Random Number Generator protocol and Lenovo’s current implementation of the protocol and suggests there is an error in their implementation. This is the first in a series of posts which demonstrate how to access, use and modify TPM 1.2 and TPM 2.0 resources via a series of UEFI shell applications. |
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