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2022 | OriginalPaper | Chapter

18. Software Optimization of Rijndael for Modern x86-64 Platforms

Authors : Nir Drucker, Shay Gueron

Published in: ITNG 2022 19th International Conference on Information Technology-New Generations

Publisher: Springer International Publishing

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Abstract

The chapter delves into the optimization of the Rijndael 256-bit block cipher for modern x86-64 platforms, focusing on the use of new vector AES-NI instructions. It provides a detailed background on the Advanced Encryption Standard (AES) and its significance in various applications. The authors present their implementation of Rijndael 256 in Electronic CodeBook (ECB) and Counter (CTR) modes, measuring performance on different CPUs with varying microarchitectures. The results show that the optimized implementation achieves a throughput of 0.27 cycles per byte (C/B) on modern processors, comparable to the performance of the standard 128-bit block size AES. The chapter also discusses the implications of block size on security and the potential benefits of a 256-bit block cipher in cloud-scale applications. The authors conclude by highlighting the importance of considering specific processor characteristics and compiler behavior in achieving optimal performance.
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Metadata
Title
Software Optimization of Rijndael for Modern x86-64 Platforms
Authors
Nir Drucker
Shay Gueron
Copyright Year
2022
Book
ITNG 2022 19th International Conference on Information Technology-New Generations

Print ISBN: 978-3-030-97651-4

Electronic ISBN: 978-3-030-97652-1

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-3-030-97652-1_18

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