A Very Compact Rijndael S-Box PDF Download
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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.
Author: D. Canright
Publisher:
ISBN: 9781423586999
Category :
Languages : en
Pages : 66
Get Book Here
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.
Author: Min Surp Rhee
Publisher: Springer Science & Business Media
ISBN: 3540491120
Category : Business & Economics
Languages : en
Pages : 369
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Book Description
This book constitutes the refereed proceedings of the 9th International Conference on Information Security and Cryptology, ICISC 2006, held in Busan, Korea in November/December 2006. The 26 revised full papers presented together with two invited talks have gone through two rounds of reviewing and improvement and were selected from 129 submissions. The papers are organized in topical sections on hash functions, block and stream ciphers, efficient implementation and hardware, network security and access control, mobile communications security, forensics, copyright protection, biometrics, public key cryptosystems, and digital signatures.
Author: Ingrid M.R. Verbauwhede
Publisher: Springer Science & Business Media
ISBN: 038771829X
Category : Computers
Languages : en
Pages : 250
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Book Description
On any advanced integrated circuit or "system-on-chip" there is a need for security. In many applications the actual implementation has become the weakest link in security rather than the algorithms or protocols. The purpose of the book is to give the integrated circuits and systems designer an insight into the basics of security and cryptography from the implementation point of view. As a designer of integrated circuits and systems it is important to know both the state-of-the-art attacks as well as the countermeasures. Optimizing for security is different from optimizations for speed, area, or power consumption. It is therefore difficult to attain the delicate balance between the extra cost of security measures and the added benefits.
Author: Josyula R. Rao
Publisher: Springer
ISBN: 3540319409
Category : Computers
Languages : en
Pages : 469
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Book Description
These are the proceedings of the 7th Workshop on Cryptographic Hardware and Embedded Systems (CHES 2005) held in Edinburgh, Scotland from August 29 to September 1, 2005.
Author: Shuvra S. Bhattacharyya
Publisher: Springer Science & Business Media
ISBN: 1461468590
Category : Technology & Engineering
Languages : en
Pages : 1395
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Book Description
Handbook of Signal Processing Systems is organized in three parts. The first part motivates representative applications that drive and apply state-of-the art methods for design and implementation of signal processing systems; the second part discusses architectures for implementing these applications; the third part focuses on compilers and simulation tools, describes models of computation and their associated design tools and methodologies. This handbook is an essential tool for professionals in many fields and researchers of all levels.
Author: Guido Marco Bertoni
Publisher: Springer
ISBN: 9783642403484
Category : Computers
Languages : en
Pages : 490
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Book Description
This book constitutes the proceedings of the 15th International Workshop on Cryptographic Hardware and Embedded Systems, CHES 2013, held in Santa Barbara, CA, USA, in August 2013. The 27 papers presented were carefully reviewed and selected from 132 submissions. The papers are organized in the following topical sections: side-channel attacks; physical unclonable function; lightweight cryptography; hardware implementations and fault attacks; efficient and secure implementations; elliptic curve cryptography; masking; side-channel attacks and countermeasures.
Author: Kerstin Lemke
Publisher: Springer Science & Business Media
ISBN: 3540284281
Category : Computers
Languages : en
Pages : 271
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Book Description
Most innovations in the car industry are based on software and electronics, and IT will soon constitute the major production cost factor. It seems almost certain that embedded IT security will be crucial for the next generation of applications. Yet whereas software safety has become a relatively well-established field, the protection of automotive IT systems against manipulation or intrusion has only recently started to emerge. Lemke, Paar, and Wolf collect in this volume a state-of-the-art overview on all aspects relevant for IT security in automotive applications. After an introductory chapter written by the editors themselves, the contributions from experienced experts of different disciplines are structured into three parts. "Security in the Automotive Domain" describes applications for which IT security is crucial, like immobilizers, tachographs, and software updates. "Embedded Security Technologies" details security technologies relevant for automotive applications, e.g., symmetric and asymmetric cryptography, and wireless security. "Business Aspects of IT Systems in Cars" shows the need for embedded security in novel applications like location-based navigation systems and personalization. The first book in this area of fast-growing economic and scientific importance, it is indispensable for both researchers in software or embedded security and professionals in the automotive industry.
Author: Mohammad Tehranipoor
Publisher: Springer Science & Business Media
ISBN: 1441980806
Category : Technology & Engineering
Languages : en
Pages : 429
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Book Description
This book provides the foundations for understanding hardware security and trust, which have become major concerns for national security over the past decade. Coverage includes security and trust issues in all types of electronic devices and systems such as ASICs, COTS, FPGAs, microprocessors/DSPs, and embedded systems. This serves as an invaluable reference to the state-of-the-art research that is of critical significance to the security of, and trust in, modern society’s microelectronic-supported infrastructures.
Author: Jianying Zhou
Publisher: Springer
ISBN: 3540347046
Category : Computers
Languages : en
Pages : 500
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Book Description
This book constitutes the refereed proceedings of the 4th International Conference on Applied Cryptography and Network Security, ACNS 2006, held in Singapore in June 2006. Book presents 33 revised full papers, organized in topical sections on intrusion detection and avoidance, cryptographic applications, DoS attacks and countermeasures, key management, cryptanalysis, security of limited devices, cryptography, authentication and Web security, ad-hoc and sensor network security, cryptographic constructions, and security and privacy.
Author: Emmanuel Prouff
Publisher: Springer
ISBN: 3642330274
Category : Computers
Languages : en
Pages : 580
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Book Description
This book constitutes the proceedings of the 14th International Workshop on Cryptographic Hardware and Embedded Systems, CHES 2012, held in Leuven, Belgium, in September 2012. The 32 papers presented together with 1 invited talk were carefully reviewed and selected from 120 submissions. The papers are organized in the following topical sections: intrusive attacks and countermeasures; masking; improved fault attacks and side channel analysis; leakage resiliency and security analysis; physically unclonable functions; efficient implementations; lightweight cryptography; we still love RSA; and hardware implementations.
