A Very Compact Rijndael S-Box

A Very Compact Rijndael S-Box PDF Author: D. Canright
Publisher:
ISBN: 9781423586999
Category :
Languages : en
Pages : 66

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Book Description
One key step in the Advanced Encryption Standard (AES), or Rijndael, algorithm is called the "S-box", the only nonlinear step in each round of encryption/decryption. A wide variety of implementations of AES have been proposed, for various desiderata, that effect the S-box in various ways. In particular, the most compact implementation to date of Satoh et al. performs the 8-bit Galois field inversion of the S-box using subfields of 4 bits and of 2 bits. This work describes a refinement of this approach that minimizes the circuitry, and hence the chip area, required for the S-box. While Satoh used polynomial bases at each level, we consider also normal bases, with arithmetic optimizations; altogether, 432 different cases were considered. The isomorphism bit matrices are fully optimized, improving on the "greedy algorithm." The best case reduces the number of gates in the S-box by 16%. This decrease in chip area could be important for area-limited hardware implementations, e.g., smart cards. And for applications using larger chips, this approach could allow more copies of the S-box, for parallelism and/or pipelining in non-feedback modes of AES.

A Very Compact Rijndael S-Box

A Very Compact Rijndael S-Box PDF Author: D. Canright
Publisher:
ISBN: 9781423586999
Category :
Languages : en
Pages : 66

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Book Description
One key step in the Advanced Encryption Standard (AES), or Rijndael, algorithm is called the "S-box", the only nonlinear step in each round of encryption/decryption. A wide variety of implementations of AES have been proposed, for various desiderata, that effect the S-box in various ways. In particular, the most compact implementation to date of Satoh et al. performs the 8-bit Galois field inversion of the S-box using subfields of 4 bits and of 2 bits. This work describes a refinement of this approach that minimizes the circuitry, and hence the chip area, required for the S-box. While Satoh used polynomial bases at each level, we consider also normal bases, with arithmetic optimizations; altogether, 432 different cases were considered. The isomorphism bit matrices are fully optimized, improving on the "greedy algorithm." The best case reduces the number of gates in the S-box by 16%. This decrease in chip area could be important for area-limited hardware implementations, e.g., smart cards. And for applications using larger chips, this approach could allow more copies of the S-box, for parallelism and/or pipelining in non-feedback modes of AES.

The Design of Rijndael

The Design of Rijndael PDF Author: Joan Daemen
Publisher: Springer Science & Business Media
ISBN: 3662047225
Category : Computers
Languages : en
Pages : 244

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Book Description
An authoritative and comprehensive guide to the Rijndael algorithm and Advanced Encryption Standard (AES). AES is expected to gradually replace the present Data Encryption Standard (DES) as the most widely applied data encryption technology. This book, written by the designers of the block cipher, presents Rijndael from scratch. The underlying mathematics and the wide trail strategy as the basic design idea are explained in detail and the basics of differential and linear cryptanalysis are reworked. Subsequent chapters review all known attacks against the Rijndael structure and deal with implementation and optimization issues. Finally, other ciphers related to Rijndael are presented.

Applied Cryptography and Network Security

Applied Cryptography and Network Security PDF Author: Steven M. Bellovin
Publisher: Springer Science & Business Media
ISBN: 3540689133
Category : Business & Economics
Languages : en
Pages : 518

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Book Description
ACNS2008,the6thInternationalConferenceonAppliedCryptographyandN- work Security, was held in New York, New York, June 3–6, 2008, at Columbia University. ACNS 2008 was organized in cooperation with the International - sociation for Cryptologic Research (IACR) and the Department of Computer Science at Columbia University. The General Chairs of the conference were - gelos Keromytis and Moti Yung. The conference received 131 submissions, of which the Program Committee, chairedbyStevenBellovinandRosarioGennaro, selected 30 for presentation at the conference. The Best Student Paper Award was given to Liang Xie and Hui Song for their paper “On the E?ectiveness of Internal Patch Dissemination Against File-Sharing Worms” (co-authored with Sencun Zhu). These proceedings consist of revised versions of the presented papers. The revisions werenot reviewed.The authors bear full responsibility for the contents of their papers. Thereweremany submissionsof goodquality, and consequentlythe selection process was challenging and very competitive. Indeed, a number of good papers were not accepted due to lack of space in the program. The main considerations in selecting the program were conceptual and technical innovation and quality of presentation. As re?ected in the Call for Papers, an attempt was made to solicit and publish papers suggesting novel paradigms, original directions, or non-traditional perspectives.

Advances in Cryptology — ASIACRYPT 2001

Advances in Cryptology — ASIACRYPT 2001 PDF Author: Colin Boyd
Publisher: Springer
ISBN: 3540456821
Category : Computers
Languages : en
Pages : 614

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Book Description
The origins of the Asiacrypt series of conferences can be traced back to 1990, when the ?rst Auscrypt conference was held, although the name Asiacrypt was ?rst used for the 1991 conference in Japan. Starting with Asiacrypt 2000, the conference is now one of three annual conferences organized by the Inter- tional Association for Cryptologic Research (IACR). The continuing success of Asiacrypt is in no small part due to the e?orts of the Asiacrypt Steering C- mittee (ASC) and the strong support of the IACR Board of Directors. There were 153 papers submitted to Asiacrypt 2001 and 33 of these were accepted for inclusion in these proceedings. The authors of every paper, whether accepted or not, made a valued contribution to the success of the conference. Sending out rejection noti?cations to so many hard working authors is one of the most unpleasant tasks of the Program Chair. The review process lasted some 10 weeks and consisted of an initial refe- eing phase followed by an extensive discussion period. My heartfelt thanks go to all members of the Program Committee who put in extreme amounts of time to give their expert analysis and opinions on the submissions. All papers were reviewed by at least three committee members; in many cases, particularly for those papers submitted by committee members, additional reviews were obt- ned. Specialist reviews were provided by an army of external reviewers without whom our decisions would have been much more di?cult.

Cryptographic Engineering

Cryptographic Engineering PDF Author: Cetin Kaya Koc
Publisher: Springer Science & Business Media
ISBN: 0387718176
Category : Technology & Engineering
Languages : en
Pages : 528

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Book Description
This book is for engineers and researchers working in the embedded hardware industry. This book addresses the design aspects of cryptographic hardware and embedded software. The authors provide tutorial-type material for professional engineers and computer information specialists.

Cryptology and Network Security

Cryptology and Network Security PDF Author: Josef Pieprzyk
Publisher: Springer Science & Business Media
ISBN: 3642354041
Category : Computers
Languages : en
Pages : 323

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Book Description
This book constitutes the refereed proceedings of the 11th International Conference on Cryptology and Network Security, CANS 2012, held in Darmstadt, Germany, in December 2012. The 22 revised full papers, presented were carefully reviewed and selected from 99 submissions. The papers are organized in topical sections on cryptanalysis; network security; cryptographic protocols; encryption; and s-box theory.

Information Security and Privacy Research

Information Security and Privacy Research PDF Author: Dimitris Gritzalis
Publisher: Springer
ISBN: 9783642448928
Category : Computers
Languages : en
Pages : 0

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Book Description
This book constitutes the refereed proceedings of the 27th IFIP TC 11 International Information Security Conference, SEC 2012, held in Heraklion, Crete, Greece, in June 2012. The 42 revised full papers presented together with 11 short papers were carefully reviewed and selected from 167 submissions. The papers are organized in topical sections on attacks and malicious code, security architectures, system security, access control, database security, privacy attitudes and properties, social networks and social engineering, applied cryptography, anonymity and trust, usable security, security and trust models, security economics, and authentication and delegation.

Cryptographic Hardware and Embedded Systems – CHES 2008

Cryptographic Hardware and Embedded Systems – CHES 2008 PDF Author: Elisabeth Oswald
Publisher: Springer Science & Business Media
ISBN: 354085052X
Category : Computers
Languages : en
Pages : 457

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Book Description
by Andrey Bogdanov, Thomas Eisenbarth, Andy Rupp and Christopher Wolf. The purpose of the award is to formally acknowledge excellence in research. We would like to c- gratulate the authors of these two papers.

Cryptographic Hardware and Embedded Systems - CHES 2005

Cryptographic Hardware and Embedded Systems - CHES 2005 PDF Author: Josyula R. Rao
Publisher: Springer Science & Business Media
ISBN: 3540284745
Category : Business & Economics
Languages : en
Pages : 469

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Book Description
This book constitutes the refereed proceedings of the 7th International Workshop on Cryptographic Hardware and Embedded Systems, CHES 2005, held in Edinburgh, UK in August/September 2005. The 32 revised full papers presented were carefully reviewed and selected from 108 submissions. The papers are organized in topical sections on side channels, arithmetic for cryptanalysis, low resources, special purpose hardware, hardware attacks and countermeasures, arithmetic for cryptography, trusted computing, and efficient hardware.

Experimental Algorithms

Experimental Algorithms PDF Author: Paola Festa
Publisher: Springer
ISBN: 364213193X
Category : Computers
Languages : en
Pages : 526

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Book Description
Annotation. This volume constitutes the refereed proceedings of the 9th International Symposium on Experimental Algorithms, SEA 2010, held on Ischia Island, Naples, Italy, in May 2010. The 40 revised full papers presented together with two invited papers were carefully reviewed and selected from 73 submissions. The topics covered include algorithm engineering, algorithmic libraries, algorithmic mechanism design, analysis of algorithms, algorithms for memory hierarchies, approximation techniques, bioinformatics, branch and bound algorithms, combinatorial and irregular problems, combinatorial structures and graphs, communication networks, complex networks, computational geometry, computational learning theory, computational optimization, computer systems, cryptography and security, data streams, data structures, distributed and parallel algorithms, evaluation of algorithms for realistic environments, experimental techniques and statistics, graph drawing, heuristics for combinatorial optimization.