Publications related to Cryptography

A Mobile World of Security

Rüdiger Urbanke, Christina Fragouli, Panagiotis Papadimitratos, Christine Neuberg

Mobile users are increasing fast in numbers, new types of services and applications become available, and new mobile systems (e.g., for intelligent transportation) emerge. Meanwhile, the need for securing communication in such large scale, highly dynamic s ...

2010

Efficient and side-channel-aware implementations of elliptic curve cryptosystems over prime fields

Yusuf Leblebici

Elliptic curve cryptosystems (ECCs) are utilised as an alternative to traditional public-key cryptosystems, and are more suitable for resource-limited environments because of smaller parameter size. In this study, the authors carry out a thorough investiga ...

2010

Performance Analysis of the SHA-3 Candidates on Exotic Multi-core Architectures

Joppe Willem Bos, Deian Stefan

The NIST hash function competition to design a new cryptographic hash standard 'SHA-3' is currently one of the hot topics in cryptologic research, its outcome heavily depends on the public evaluation of the remaining 14 candidates. There have been several ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2010

Optimal Revocations in Ephemeral Networks: A Game-Theoretic Framework

Jean-Pierre Hubaux, Maxime Raya, Igor Bilogrevic

Revocation of public-key certificates is an important security primitive. In this paper, we design a fully distributed local certificate revocation scheme for ephemeral networks - a class of extremely volatile wireless networks with short-duration and shor ...

IEEE2010

Design and Performance of Secure Geocast for Vehicular Communication

Panagiotis Papadimitratos

The characteristics of vehicular communication environments and their networking and application requirements have led to the development of unique networking protocols. They enable vehicle-to-vehicle and vehicle-to-infrastructure communication based on th ...

2010

Faster Squaring in the Cyclotomic Subgroup of Sixth Degree Extensions

Robert Granger

This paper describes an extremely efficient squaring operation in the so-called ‘cyclotomic subgroup’ of

\mathbb{F}_{q^6}

, for

q \equiv 1 \bmod{6}

. Our result arises from considering the Weil restriction of scalars of this group from

\mathbb{F}_{q^6}

...

Springer Berlin Heidelberg2010

An Analysis of the Blockcipher-Based Hash Functions from PGV

Martijn Stam

Preneel, Govaerts, and Vandewalle (1993) considered the 64 most basic ways to construct a hash function H: {0, 1}*->{0, 1}(n) from a blockcipher E: {0, 1}(n) x {0, 1}(n)->{0,1}(n). They regarded 12 of these 64 schemes as secure, though no proofs or formal ...

Springer Verlag2010

Attacking the Knudsen-Preneel Compression Functions

Martijn Stam, Onur Özen

Knudsen and Preneel (Asiacrypt’96 and Crypto’97) introduced a hash function design in which a linear error-correcting code is used to build a wide-pipe compression function from underlying blockciphers operating in Davies-Meyer mode. In this paper, we (re) ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2010

Additive Combinatorics and Discrete Logarithm Based Range Protocols

Rafik Chaabouni, Helger Lipmaa

We show how to express an arbitrary integer interval

I = [0, H]

as a sumset

I = \sum_{i=1}^\ell G_i * [0, u - 1] + [0, H']

of smaller integer intervals for some small values

\ell

,

u

, and

H' < u - 1

, where

b * A = \{b a : a \in A\}

and $A + B = ...

Springer2010

Adaptive Message Authentication for Vehicular Networks

Jean-Yves Le Boudec, Jean-Pierre Hubaux, Nikodin Ristanovic, Panagiotis Papadimitratos, Georgios Theodorakopoulos

Public key cryptography can introduce significant processing delays in vehicular communication platforms. This can lead to serious performance issues, especially in the case of multi-hop Inter-Vehicle Communication. In this paper we propose Adaptive Messag ...

Sheridan Printing2009

Cryptography

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A Mobile World of Security

Efficient and side-channel-aware implementations of elliptic curve cryptosystems over prime fields

Performance Analysis of the SHA-3 Candidates on Exotic Multi-core Architectures

Optimal Revocations in Ephemeral Networks: A Game-Theoretic Framework

Design and Performance of Secure Geocast for Vehicular Communication

Faster Squaring in the Cyclotomic Subgroup of Sixth Degree Extensions

An Analysis of the Blockcipher-Based Hash Functions from PGV

Attacking the Knudsen-Preneel Compression Functions

Additive Combinatorics and Discrete Logarithm Based Range Protocols

Adaptive Message Authentication for Vehicular Networks

Performance Analysis of the SHA-3 Candidates on Exotic Multi-core Architectures

A Mobile World of Security

Design and Performance of Secure Geocast for Vehicular Communication

Optimal Revocations in Ephemeral Networks: A Game-Theoretic Framework

Faster Squaring in the Cyclotomic Subgroup of Sixth Degree Extensions

An Analysis of the Blockcipher-Based Hash Functions from PGV

Attacking the Knudsen-Preneel Compression Functions

Additive Combinatorics and Discrete Logarithm Based Range Protocols

Adaptive Message Authentication for Vehicular Networks

Efficient and side-channel-aware implementations of elliptic curve cryptosystems over prime fields