Stéphanie Delaune An Undecidability Result for AGh

نویسنده

  • Stéphanie Delaune
چکیده

We present an undecidability result for the verification of security protocols. Since the perfect cryptography assumption is unrealistic for cryptographic primitives with visible algebraic properties, several recent works relax this assumption, allowing the intruder to exploit these properties. We are interested in the Abelian groups theory in combination with the homomorphism axiom. We show that the security problem for a bounded number of sessions (expressed by satisfaisability of symbolic deducibility constraints) is undecidable, obtaining in this way the first undecidability result concerning a theory for which unification is known to be decidable.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An undecidability result for AGh

We present an undecidability result for the verification of security protocols. Since the perfect cryptography assumption is unrealistic for cryptographic primitives with visible algebraic properties, several recent works relax this assumption, allowing the intruder to exploit these properties. We are interested in the Abelian groups theory in combination with the homomorphism axiom. We show th...

متن کامل

Stéphanie Delaune , Steve Kremer and Graham Steel Formal Analysis of

PKCS#11 defines an API for cryptographic devices that has been widely adopted in industry. However, it has been shown to be vulnerable to a variety of attacks that could, for example, compromise the sensitive keys stored on the device. In this paper, we set out a formal model of the operation of the API, which differs from previous security API models notably in that it accounts for non-monoton...

متن کامل

Ştefan Ciobâcă , Stéphanie Delaune , and Steve Kremer Computing knowledge in security protocols under convergent equational theories Research Report LSV - 09 - 05 March , 2009

The analysis of security protocols requires reasoning about the knowledge an attacker acquires by eavesdropping on network traffic. In formal approaches, the messages exchanged over the network are modeled by a term algebra equipped with an equational theory axiomatizing the properties of the cryptographic primitives (e.g. encryption, signature). In this context, two classical notions of knowle...

متن کامل

Stéphanie Delaune , Steve Kremer and Mark D . Ryan Symbolic bisimulation for the applied pi calculus Research Report LSV - 07 - 14 April 2007

We propose a symbolic semantics for the finite applied pi calculus, which is a variant of the pi calculus with extensions for modelling cryptgraphic protocols. By treating inputs symbolically, our semantics avoids potentially infinite branching of execution trees due to inputs from the environment. Correctness is maintained by associating with each process a set of constraints on symbolic terms...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006