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Trade-Offs for S-Boxes: Cryptographic Properties and Side-Channel Resilience

机译：S-Box的权衡：加密属性和侧通道弹性

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摘要

When discussing how to improve side-channel resilience of a cipher, an obvious direction is to use various masking or hiding counter-measures. However, such schemes come with a cost, e.g. an increase in the area and/or reduction of the speed. When considering lightweight cryptography and various constrained environments, the situation becomes even more difficult due to numerous implementation restrictions. However, some options are possible like using S-boxes that are easier to mask or (more on a fundamental level), using S-boxes that possess higher inherent side-channel resilience. In this paper we investigate what properties should an S-box possess in order to be more resilient against side-channel attacks. Moreover, we find certain connections between those properties and cryptographic properties like nonlinearity and differential uniformity. Finally, to strengthen our theoretical findings, we give an extensive experimental validation of our results.
机译：在讨论如何提高密码的边信道弹性时，一个明显的方向是使用各种掩蔽或隐藏对策。但是，这样的方案需要付出一定的成本，例如面积增加和/或速度降低。当考虑轻量级加密和各种受限环境时，由于众多实现限制，情况变得更加困难。但是，某些选项也是可能的，例如使用更容易掩盖的S-box或（在基本层面上更高），使用具有更高固有侧信道弹性的S-box。在本文中，我们研究了S盒应具有哪些属性，以更强地抵抗侧通道攻击。此外，我们发现这些属性和密码属性之间存在某些联系，例如非线性和微分均匀性。最后，为了加强我们的理论发现，我们对结果进行了广泛的实验验证。

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  • 会议地点 Kanaxzawa(JP)
  • 作者

    Claude Carlet; Annelie Heuser; Stjepan Picek;

  • 作者单位

    Universities of Paris VIII and Paris XIII, LAGA, UMR 7539, CNRS, Saint-Denis, Prance;

    CMRS/IRISA, Rennes, France;

    Universities of Paris VIII and Paris XIII, LAGA, UMR 7539, CNRS, Saint-Denis, Prance,Massachusetts Institute of Technology, CSAIL, Cambridge, USA,Cyber Security Research Group, Delft University of Technology, Mekelweg 2, Delft, The Netherlands;

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  • 正文语种 eng
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