Collaborate Disseminate
RoT: element within a system that is trusted and must always behave as expected because any misbehavior cannot be detected at runtime. It’s part of the TCB.
TCB: the smallest set of hardware, firmware, software, and other resources (e.g.,… Continue reading What is the difference between Root of Trust and Trusted Computing Base (TCB)?
I have researched a little bit about TPM, and the way I see it is that it stores the keys securely and erases them if it detects even the slightest hacking attempt.
What I have not found anywhere, though is how can I be sure that the TPM t… Continue reading How do I know my TPM is not tampered with before using it? [duplicate]
The TPM (Trusted Platform Module) has a feature called dynamic root-of-trust. If i understand correctly a measurement of the current system is taken (to enable attestation) by the CPU and transmitted to the TPM. To make sure that the measu… Continue reading Do microcontroller processors like Arm Cortex-M support the TPM’s Dynamic root of trust (similar to e.g. Intel TXT)?
I don’t know much about TPMs, and I admittedly don’t know as much about cryptography as I’d like to, though I am quite familiar with basic concepts. For the past two hours I’ve been attempting to improve this situation by trying to gain an… Continue reading How and why can a TPM be used for disk encryption or DRM?
The following two CPUs listed here both have TrustZone.
From a high level, could someone post a comparison list with the difference between the features TrustZone offers in each of them? Such as whether one does something in an improved wa… Continue reading TrustZone in Exynos CPU [closed]
The following two CPUs listed here both have TrustZone.
From a high level, could someone post a comparison list with the difference between the features TrustZone offers in each of them? Such as whether one does something in an improved wa… Continue reading TrustZone in Exynos CPU [closed]
The following two CPUs listed here both have TrustZone.
From a high level, could someone post a comparison list with the difference between the features TrustZone offers in each of them? Such as whether one does something in an improved wa… Continue reading TrustZone in Exynos CPU [closed]
I’ve also checked with systemd-analyze pcrs if PCRs are the same at every reboot, and they are.
Only at first reboot I don’t know why the only PCRs that change are 8,9,10 lol(I don’t know why)… but in next reboots they are always the sam… Continue reading Why is my TPM bugged? If I enable checks on PCR 8,9,10, it ALWAYS asks for decryption password even if it shouldn’t [migrated]
In my laptop I’ve set up a bios password when I power on the laptop, and once I enter it the laptop starts my linux distro and decrypts the disk without asking any other password. To do this I’ve set up TPM to automatically decrypts the di… Continue reading Why the TPM PCRs does not consider a UEFI settings change? If someone resets CMOS, it’s undetected
I have a remote client A which wants to communicate securely with a server B having a discrete TPM. My understanding is that each TPM normally come with a endorsement key from manufacture like Infineon. Therefore, client A can validate cli… Continue reading How to wrap/unwrap with TPM2 endorsement key