TPMs have already been broken, Christopher Tarnovsky showed that for some Infineon TPM. I find it suspect that Lenovo, for instance, is making sure they have tr

TPMs have already been broken, Christopher Tarnovsky showed that for some Infineon TPM. I find it suspect that Lenovo, for instance, is making sure they have truly hardened TPMs. Even dedicated HSMs like the Chrysalis Luna CA3 (I own one) have been broken: http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-592.pdf http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-592.pdf