This book constitutes the refereed proceedings of the 10th International Conference on the Theory and Application of Cryptographic Techniques in Africa, AFRICACRYPT 2018, held in Marrakesh, Morocco, in May 2018. The 19 papers presented in this book were carefully reviewed and selected from 54 submissions. AFRICACRYPT is a major scientific event that seeks to advance and promote the field of cryptology on the African continent. The conference has systematically drawn some excellent contributions to the field. The conference has always been organized in cooperation with the International Association for Cryptologic Research (IACR).

This book constitutes the proceedings of the 21st International Conference on Selected Areas in Cryptography, SAC 2014, held in Montreal, QC, Canada, in August 2014. The 22 papers presented in this volume were carefully reviewed and selected from 103 submissions. There are four areas covered at each SAC conference. The three permanent areas are: design and analysis of symmetric key primitives and cryptosystems, including block and stream ciphers, hash function, MAC algorithms, cryptographic permutations, and authenticated encryption schemes; efficient implementations of symmetric and public key algorithms; mathematical and algorithmic aspects of applied cryptology. This year, the fourth area for SAC 2014 is: algorithms for cryptography, cryptanalysis and their complexity analysis.

This book constitutes the thoroughly refereed post-conference proceedings of the 18th International Workshop on Fast Software Encryption, held in Lyngby, Denmark, in February 2011. The 22 revised full papers presented together with 1 invited lecture were carefully reviewed and selected from 106 initial submissions. The papers are organized in topical sections on differential cryptanalysis, hash functions, security and models, stream ciphers, block ciphers and modes, as well as linear and differential cryptanalysis.

Illustrating the power of algorithms, Algorithmic Cryptanalysis describes algorithmic methods with cryptographically relevant examples. Focusing on both private- and public-key cryptographic algorithms, it presents each algorithm either as a textual description, in pseudo-code, or in a C code program. Divided into three parts, the book begins with a short introduction to cryptography and a background chapter on elementary number theory and algebra. It then moves on to algorithms, with each chapter in this section dedicated to a single topic and often illustrated with simple cryptographic applications. The final part addresses more sophisticated cryptographic applications, including LFSR-based stream ciphers and index calculus methods. Accounting for the impact of current computer architectures, this book explores the algorithmic and implementation aspects of cryptanalysis methods. It can serve as a handbook of algorithmic methods for cryptographers as well as a textbook for undergraduate and graduate courses on cryptanalysis and cryptography.

You are holding the proceedings of Eurocrypt 2009, the 28th Annual Inter- tional Conferenceon the Theoryand Applications of CryptographicTechniques. This conference was organized by the International Association for Cryptologic Research in cooperation with the Horst Gort ] z Institute for IT-Security at the Ruhr-Universit] at Bochum. The local organization received additional support from several sponsors: Horst G] ortz Stiftung, Deutsche Forschungsgemeinschaft, Bochum 2015, Secunet, NXP, IET, Taylor & Francis, AuthentiDate. The c- ference was held in Cologne, Germany. The Eurocrypt 2009 Program Committee (PC) consisted of 29 members, listed on the next page. There were 148 submissions and 33 were selected to - pear in this volume.Eachsubmissionwasassignedto at leastthreePCmembers and reviewed anonymously. During the review process, the PC members were assisted by 131 external reviewers.Once the reviews were available, the comm- tee discussed the papers in depth using the EasyChair conference management system. The authors of accepted papers were given ?ve weeks to prepare the- nalversionsincluded in theseproceedings.Therevisedpaperswerenot reviewed again and their authors bear the responsibility for their content. Inadditiontothepapersincludedinthisvolume, theconferencealsofeatured aPosterandaRumpsession.Thelistofpresentedpostersappearsinthisvolume before the table of contents. Dan Bernstein served as the Chair of the Rump session. The conference also had the pleasure of hearing invited talks by Sha? Goldwasser and Phillip Rogaway."