Re-Consolidating First-Order Masking Schemes
نویسندگان
چکیده
منابع مشابه
Consolidating Masking Schemes
In this paper we investigate relations between several masking schemes. We show that the Ishai–Sahai–Wagner private circuits construction is closely related to Threshold Implementations and the Trichina gate. The implications of this observation are manifold. We point out a higher-order weakness in higher-order Threshold Implementations, suggest a mitigation and provide new sharings that use a ...
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Masking schemes are a prominent countermeasure to defeat power analysis attacks. One of their core ingredients is the encoding function. Due to its simplicity and comparably low complexity overheads, many masking schemes are based on a Boolean encoding. Yet, several recent works have proposed masking schemes that are based on alternative encoding functions. One such example is the inner product...
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Masking is a common countermeasure against side-channel attacks. The principle is to randomly split every sensitive intermediate variable occurring in the computation into d+1 shares, where d is called the masking order and plays the role of a security parameter. The main issue while applying masking to protect a block cipher implementation is to design an efficient scheme for the s-box computa...
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This paper summarizes the current state of the art in the topics of rst-order theory revision and theory restructuring. The various tasks involved in rst-order theory reenement (revision vs. restructuring) are deened and then discussed in turn. For theory revision, the issue of minimality is discussed in detail, and a general outline algorithm is given which identiies the major places of diiere...
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One protection of cryptographic implementations against sidechannel attacks is the masking of the sensitive variables. In this article, we present a first-order masking that does not leak information when the registers change values according to some specific (and realistic) rules. This countermeasure applies to all devices that leak a function of the distance between consecutive values of inte...
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ژورنال
عنوان ژورنال: IACR Transactions on Cryptographic Hardware and Embedded Systems
سال: 2020
ISSN: 2569-2925
DOI: 10.46586/tches.v2021.i1.305-342