2. AFRICACRYPT 2009: Gammarth, Tunisia

Bart Preneel (Ed.): Progress in Cryptology - AFRICACRYPT 2009, Second International Conference on Cryptology in Africa, Gammarth, Tunisia, June 21-25, 2009. Proceedings. Lecture Notes in Computer Science 5580 Springer 2009, ISBN 978-3-642-02383-5

Hash Functions

Gaoli Wang, Shaohui Wang:
Second Preimage Attack on 5-Pass HAVAL and Partial Key-Recovery Attack on HMAC/NMAC-5-Pass HAVAL. 1-13
Jean-Philippe Aumasson, Orr Dunkelman, Florian Mendel, Christian Rechberger, Søren S. Thomsen:
Cryptanalysis of Vortex. 14-28
Florian Mendel:
Two Passes of Tiger Are Not One-Way. 29-40

Block Ciphers

Joana Treger, Jacques Patarin:
Generic Attacks on Feistel Networks with Internal Permutations. 41-59
Marine Minier, Raphael C.-W. Phan, Benjamin Pousse:
Distinguishers for Ciphers and Known Key Attack against Rijndael with Large Blocks. 60-76

Asymmetric Encryption

Thierry P. Berger, Pierre-Louis Cayrel, Philippe Gaborit, Ayoub Otmani:
Reducing Key Length of the McEliece Cryptosystem. 77-97
Abderrahmane Nitaj:
Cryptanalysis of RSA Using the Ratio of the Primes. 98-115

Digital Signatures

Le Trieu Phong, Kaoru Kurosawa, Wakaha Ogata:
New RSA-Based (Selectively) Convertible Undeniable Signature Schemes. 116-134
David Galindo, Flavio D. Garcia:
A Schnorr-Like Lightweight Identity-Based Signature Scheme. 135-148
Go Ohtake, Arisa Fujii, Goichiro Hanaoka, Kazuto Ogawa:
On the Theoretical Gap between Group Signatures with and without Unlinkability. 149-166
Ilker Nadi Bozkurt, Kamer Kaya, Ali Aydin Selçuk:
Practical Threshold Signatures with Linear Secret Sharing Schemes. 167-178

Asymmetric Encryption and Anonymity

Pooya Farshim, Bogdan Warinschi:
Certified Encryption Revisited. 179-197
Siamak Fayyaz Shahandashti, Reihaneh Safavi-Naini:
Threshold Attribute-Based Signatures and Their Application to Anonymous Credential Systems. 198-216
Laila El Aimani:
Anonymity from Public Key Encryption to Undeniable Signatures. 217-234

Key Agreement Protocols

Manuel Barbosa, Pooya Farshim:
Security Analysis of Standard Authentication and Key Agreement Protocols Utilising Timestamps. 235-253
Michel Abdalla, Dario Catalano, Céline Chevalier, David Pointcheval:
Password-Authenticated Group Key Agreement with Adaptive Security and Contributiveness. 254-271

Cryptographic Protocols

Ueli M. Maurer:
Unifying Zero-Knowledge Proofs of Knowledge. 272-286
Carmine Ventre, Ivan Visconti:
Co-sound Zero-Knowledge with Public Keys. 287-304
Julien Bringer, Hervé Chabanne:
Another Look at Extended Private Information Retrieval Protocols. 305-322
Huafei Zhu, Feng Bao:
Constructing Universally Composable Oblivious Transfers from Double Trap-Door Encryptions. 323-333

Efficient Implementations

Marc Joye, Michael Tunstall:
Exponent Recoding and Regular Exponentiation Algorithms. 334-349
Owen Harrison, John Waldron:
Efficient Acceleration of Asymmetric Cryptography on Graphics Hardware. 350-367
Neil Costigan, Peter Schwabe:
Fast Elliptic-Curve Cryptography on the Cell Broadband Engine. 368-385
Billy Bob Brumley, Kaisa Nyberg:
On Modular Decomposition of Integers. 386-402

Implementation Attacks

Markus Kasper, Timo Kasper, Amir Moradi, Christof Paar:
Breaking KeeLoq in a Flash: On Extracting Keys at Lightning Speed. 403-420
Debdeep Mukhopadhyay:
An Improved Fault Based Attack of the Advanced Encryption Standard. 421-434