TPMHashes
TPMHashes is a term used to describe the collection of hash values produced by a Trusted Platform Module (TPM) that reflect the measured state of a computer system. These hashes arise from the TPM’s measurement process, in which components such as firmware, bootloaders, and operating system modules are hashed and extended into Platform Configuration Registers (PCRs). The resulting PCR values, often referred to as TPMHashes in documentation or tooling, summarize the integrity measurements of the boot and runtime environment.
TPMs maintain a chain of trust by extending PCRs with new measurements rather than overwriting them. Each
TPMHashes underpin remote attestation, secure boot verification, and integrity checks in enterprise environments. Verifiers compare the
Access to TPMHashes and attestation data should be tightly controlled, as exposure could allow replay or impersonation
TPM, PCR, Attestation, Remote Attestation, Secure Boot, TPM 2.0.