Formal analysis of protocols based on TPM state registers - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2011

Formal analysis of protocols based on TPM state registers

Abstract

We present a Horn-clause-based framework for analysing security protocols that use platform configuration registers (PCRs), which are registers for maintaining state inside the Trusted Platform Module (TPM). In our model, the PCR state space is unbounded, and our experience shows that a naïve analysis using ProVerif or SPASS does not terminate. To address this, we extract a set of instances of the Horn clauses of our model, for which ProVerif does terminate on our examples. We prove the soundness of this extraction process: no attacks are lost, that is, any query derivable in the more general set of clauses is also derivable from the extracted instances. The effectiveness of our framework is demonstrated in two case studies: a simplified version of Microsoft Bitlocker, and a digital envelope protocol that allows a user to choose whether to perform a decryption, or to verifiably renounce the ability to perform the decryption.
Fichier principal
Vignette du fichier
DKRS-csf11.pdf (218.41 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

inria-00636747 , version 1 (09-10-2015)

Identifiers

Cite

Stéphanie Delaune, Steve Kremer, Ryan D. Mark, Graham Steel. Formal analysis of protocols based on TPM state registers. 24th IEEE Computer Security Foundations Symposium (CSF'11), Jun 2011, Cernay-la-Ville, France. ⟨10.1109/CSF.2011.12⟩. ⟨inria-00636747⟩
102 View
200 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More