TPMTEE
TPMTEE is a design pattern that combines a Trusted Platform Module (TPM) with a Trusted Execution Environment (TEE) to enhance hardware-based security for software running in trusted enclaves. The TPM provides hardware-backed key storage, cryptographic operations, and attestation, while the TEE offers isolated execution and protected memory. Integrating the two allows a TEE to seal secrets to a verified platform state and to obtain attestation of its integrity from the TPM.
In typical implementations, boot-time measurements are recorded in the TPM’s Platform Configuration Registers (PCRs). The TEE
Applications of TPMTEE include secure provisioning and updates of software, remote attestation of devices, and robust
Challenges involve coordinating cross-vendor implementations, managing performance overhead, and designing secure interfaces between the TPM and