A security architect has designated that a server segment of an enterprise network will require each server to have secure and measured boot capabilities. The architect now wishes to ensure service…

A centralized attestation server coordinates attestation workflows in software, but without HSM-backed key storage its signing keys are vulnerable to compromise, undermining the trust chain that verifiers depend on.

In TPM-based remote attestation, boot-measurement values (PCR quotes) must be signed by keys that chain to a trusted root before external verifiers can rely on them. An enterprise HSM stores and protects the root CA signing keys in tamper-resistant hardware, acting as the Privacy CA that certifies TPM Attestation Identity Keys (AIKs). Without an HSM-backed trust anchor, attestation reports cannot be cryptographically validated by consumers or peers, making verification impossible regardless of what the measured boot process recorded.

A vTPM provides TPM measurement capabilities to virtual machines and is a server-side component; it generates measurements but does not supply the external trust anchor needed for remote parties to verify attestation reports.

A SIEM aggregates and correlates security logs for monitoring and alerting, and plays no role in cryptographic attestation or integrity verification.