Timing attacks in security protocols: symbolic framework and proof techniques - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2015

Timing attacks in security protocols: symbolic framework and proof techniques

Abstract

We propose a framework for timing attacks, based on (a variant of) the applied-pi calculus. Since many privacy properties, as well as strong secrecy and game-based security properties, are stated as process equivalences, we focus on (time) trace equivalence. We show that actually, considering timing attacks does not add any complexity: time trace equivalence can be reduced to length trace equivalence, where the attacker no longer has access to execution times but can still compare the length of messages. We therefore deduce from a previous decidability result for length equivalence that time trace equivalence is decidable for bounded processes and the standard cryptographic primitives. As an application, we study several protocols that aim for privacy. In particular, we (automatically) detect an existing timing attack against the biometric passport and new timing attacks against the Private Authentication protocol.
No file

Dates and versions

hal-01103618 , version 1 (15-01-2015)

Identifiers

  • HAL Id : hal-01103618 , version 1

Cite

Vincent Cheval, Véronique Cortier. Timing attacks in security protocols: symbolic framework and proof techniques. 4th Conference on Principles of Security and Trust (POST 2015), Apr 2015, Londres, United Kingdom. ⟨hal-01103618⟩
121 View
0 Download

Share

Gmail Facebook X LinkedIn More