During my time working for a TPM manufacturer, we worked extensively on TPM adoption which seemed to be stagnant with the saturated growth phase of the PC industry. The thought at first was to achieve market adoption of TPM products in the Embedded systems space. Doing so was met with much resistance which were mostly cost related as many times the BOM would be doubled with adding a TPM device. What happened over time was that these markets were driving their own need for trust. This trust was minimal in compared to TCG as the human-User trust center functionality which the PC TPM basis was largely built around was not as relevant.
To make a long story short, what my work and the direction of the industry was moving toward was exactly what my Security Management work on is based on and is precisely what I am advocating with this blog. The needs for the embedded systems market and the Internet of things was to minimalizing trust centers while making them network coordinated. Then adding a eco-system trust model for many devices distributed by both physical network locations and logistic chain or business organization. I see that trust for the next generation will be best suited by groups like tailored Trustworthiness space, (TTS) and other organizations focused on designed-in security, these seem to be more suited to this evolving environment.
The image I displayed here is more accurate to the light weight trust model needed for Trusted Computing in the PC industry. Though currently it does not exist, I believe the market will grow to adopt this type of light weight network trust model. Keep coming back to my blog and help expand this needed area.
If you have suggestions or can help my work in the area, please contact me. Check out my latest article for more content on this.