The PCR is protected against being rolled back to a previous value. The measurements can then be retrieved by a remote attestation server to determine the configuration of the device at the time it was booted as well as during runtime. When devices start up, the software and firmware are measured by the Linux Integrity Measurement Architecture (IMA) and the results are stored in the OPTIGA TM TPM Platform Configuration Registers (PCRs). The system notifies the user if it does detect changes, e.g. The TPM provides a secured identity and storage space for system control mechanisms that may check whether hardware and software are still running as intended. By the time most users realize they have suffered a data breach, they have actually been under attack for weeks, months, or even years.Ī system health check supported by Infineon’s OPTIGA TM TPM lets users check that their devices have not been manipulated. Once malware is on a device, it may remain there undetected for long periods as it often works undetected in the background. ![]() Worst still, cyber threats have become so sophisticated that conventional defense-in-depth cybersecurity measures may even fail to detect them. Today, network equipment and IoT devices face a constant barrage of attacks aimed at exposing vulnerabilities in software and firmware.
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