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17
votes
3answers
2k views

Status of Trusted Computing and Remote Attestation deployment

Hardware support for various client-side controls based on Trusted Computing (Wikipedia) has been evolving over the years, e.g. TCPM, TPM, TXT (LaGrande, DRTM). I've heard of one practical ...
9
votes
5answers
1k views

Protect application from being modified

I have a question about how to protect a program from modification if that program is able to communicate with a remote validation server. More specifically I'm asking for android APK file, but it can ...
6
votes
3answers
1k views

Does any tablet support remote attestation?

Some PCs come with a TPM. One of the nifty capabilities of TPMs is the ability to perform remote attestation. Remote attestation allows your computer to tell a third computer what software your ...
6
votes
3answers
623 views

Does “late launch”/“dynamic chain of trust” allow remote attestation?

One of the features support by modern processes and Trusted Platform Modules is "dynamic chain of trust" (also known under the acronym DRTM, for dynamic root of trust measurement). This allows ...
6
votes
1answer
382 views

TPM: signing key or Attestation Identity Key?

I am dealing with the TPM right now and do not get why there is a need for an extra signing key. Instead one could use one of the Attestation Identity Keys (AIKs) for signing as well?! Using different ...
4
votes
3answers
566 views

Preventing users from tampering with replay data [duplicate]

Possible Duplicate: Protect application from being modified This probably belongs here as much as it does belong in gamedev.stackexchange.com, but I suppose I might find better technical ...
4
votes
2answers
920 views

How to use TPM to perform platform authentication?

I am currently looking at TPM (Trusted Platform Module) and wondering how does TPM offer platform authentication. Suppose a legal host is deployed on the cloud. How do I use TPM to assure that the ...
2
votes
1answer
57 views

What, or who, exactly is a Certificate Authority (CA) for TPM attestation?

I'm learning about and researching the Trusted Platform Module (TPM) to incorporate into a solution involving remote machines. As I understand it: all attestation methods (AIK, DAA) still require ...
2
votes
1answer
102 views

Is there are any mechanism available in Android platform for remote attestation?

I recently read about PC/Desktops which comes with TPM chips which is used for remote attestation. So following are my questions: Does any Android smartphone comes with TPM chip? Is there any way ...
2
votes
1answer
26 views

Revoking AIK Key

How can I prevent attacks via compromised Attestation Identity Key (AIK) keys, such as having an attacker forging the cryptographic signature of an AIK key on TPM?
1
vote
3answers
74 views

How to verify that a host applied a firewall ruleset as is?

I have a service that sends rulesets to a fleet of hosts. Each host in its turn is expected to apply its ruleset to its firewall (iptables) and then send an acknowledgement back to the service. I ...
1
vote
1answer
77 views

TPM - number of AIKs and signing key [closed]

I try to learn a bit about the TPM and have a few questions I could not solve by myself. There are some privacy concerns about using the EK for identifying a TPM. I do not get these privacy ...
0
votes
0answers
16 views

TPM based authentication without a trusted third party

Consider a scenario - Device manufacture provides in advance the TPM’s endorsement key certificate(containing EK public key) for device to be deployed. In general, what are the TPM operations that ...