Trusted Platform Module (TPM) and other protocols and components of trust in a computer or computer network

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TPM support with OpenSSL FIPS Object Module

How can I use a TPM chip along with the OpenSSL FIPS Object Module without modifying OpenSSL FIPS Object Module (to avoid Private Label certification)? Should we add an engine interface in OpenSSL ...
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Deep attestation of VM's

Hypervisors like Xen have virtual TPM (vTPM) support. In cloud environments, are there any implementations where such vTPM's are being used during remote attestation in addition to the host TPM based ...
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How can one protect TPM firmware from tampering?

I know that a TPM includes ROM, nonvolatile (e.g. EEPROM), and volatile (e.g. SRAM) memories. The executable firmware is stored in ROM, such as various drivers and commands. But this time, I want to ...
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How are TPMs provisioned for Intel Trusted Execution Environment (TXT)?

For Intel TXT to work, the TPM must be provisioned. Intel provides some tools for doing this but many are protected by non-public login or an NDA. Many OEM platform vendors provision their boards and ...
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how to create TPM_AUTHDATA as input in tpm commands ?

I'm writing my first program which use tpm (version 1.2) services in Windows 7 using TBS, in this program I'm trying to execute the TPM_CreateWrapKey command. I noticed that many commands like the ...
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How are TPMs used to detect tampering?

I've known some stuff about trusted platform modules for over six or seven years. I understand their usage in (un)wrapping keys and storing information in NVRAM which may then be locked permanently or ...
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Chain of Trust Extension with TPM2.0

I am looking for a way to implement a trusted boot using a firmware TPM2.0 on Arch Linux. I am using TPM2.0-TSS, and tpm2-tools, however I cannot find a way to do this with tpm2-tools, as I do not ...
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TPM PCR value unchanged with BIOS configuration changes

I have been experimenting with the TPM on a Dell R710 (BIOS version 6.3.0). My goal was to detect changes to BIOS settings through TPM PCRs. The research I have done leads me to believe that BIOS ...
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Differences between Intel TXT and Linux IMA

I understand that Intel TXT provides a Dynamic Root of Trust Measurement (DRTM). Does the Linux integrity measurement architecture do logically similar things? If not, what are the differences?
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Kernel-based integrity measurement of an operating system startup in RAM

This idea is based on the Integrity Measurement Architecture and the usage of a trusted platform module to ensure the integrity of boot procedures. Let's say we have a kernel designed for an embedded ...
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31 views

Decrypting keys wrapped by the Storage Root Key (SRK) of a TPM

Lets say I have a symmetric key wrapped with a storage root key (SRK) in a TPM. The SRK cannot be read by an attacker and so I perform the decryption and using the SRK and get the symmetric key in ...
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48 views

What is the market acceptance of ARM trustzone vs standalone TPM?

ARM are keen on marketing their Trustzone features, in a secure implementation (e.g. with OTP memory/fuses), to establish a TEE on an SOC. Generally, what is the market view on the security of this ...
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In practice, does TPM SRK really be decrypted by EK first, before it decrypt its child keys

I know that TPM SRK was generated when user take TPM ownership, and it is encrypted by EK public part. All the child keys under SRK need to be loaded into TPM and decrypted by SRK before use. (These ...