Many manufacturers want to build devices that include Roots of Trust for Measurement (RTM), Storage (RTS) and Reporting (RTR) to allow the devices to work securely within the TCG Measurement and Attestation framework. TPM chips are used to implement the RTS and RTR in a secure manner.

The increasing number of IoT devices means that the inclusion of a full TPM chip might be impractical due to factors such as cost, space and power. TCG’s has formed a new Measurement and Attestation RootS (MARS) Subgroup to develop specifications that will enable manufacturers to build compliant chips with very little overhead.

The first prototype of such a TPM (named Radicle) was shown at a TCG’s members’ meeting in Warsaw during the inaugural session of the MARS Subgroup. At the event, the team also agreed on the scope of its work, which will focus on the hardware requirements necessary to control and operate the primitives supporting the RTS and RTR, and the software API to access them.

The TCG’s also made progress on other ongoing projects during the members’ meeting, including work on specifications for secure software and firmware updates for embedded systems. Security in the IoT, including industrial applications and the automotive industry, was another key focus.

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