Dennis Mattoon is a Principal Software Development Engineer for Microsoft Research. As one of the founding members of the Security and Privacy Research and Engineering team in MSR, he and his team have spent the last 10+ years focused on advances in trusted computing and system security. His most recent work has been on the Device Identifier Composition Engine Specifications (DICE), Robust and Resilient IoT (RIoT), and the Cyber-Resilient Platform Initiative. In addition to chairing the Attestation, Supply Chain Security, and DICE workgroups, Dennis has previously represented Microsoft on TCG efforts including the D-RTM specification, development of the TPM 2.0 reference implementation, and was responsible for Microsoft partner enablement/adoption of TPM 2.0. Dennis also maintains the TPM Software Stack from Microsoft Research and worked with the TSS work group in TCG during its development.