ISAP v2.0

Christoph Dobraunig; Maria Eichlseder; Stefan Mangard; Florian Mendel; Bart Mennink; Robert Primas; Thomas Unterluggauer

doi:https://doi.org/10.13154/tosc.v2020.iS1.390-416

ISAP v2.0

Christoph Dobraunig, Maria Eichlseder, Stefan Mangard, Florian Mendel, Bart Mennink, Robert Primas, Thomas Unterluggauer

Institut für Angewandte Informationsverarbeitung und Kommunikationstechnologie (7050)

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

We specify Isap v2.0, a lightweight permutation-based authenticated encryption algorithm that is designed to ease protection against side-channel and fault attacks. This design is an improved version of the previously published Isap v1.0, and offers increased protection against implementation attacks as well as more efficient implementations. Isap v2.0 is a candidate in NIST’s LightWeight Cryptography (LWC) project, which aims to identify and standardize authenticated ciphers that are well-suited for applications in constrained environments. We provide a self-contained specification of the new Isap v2.0 mode and discuss its design rationale. We formally prove the security of the Isap v2.0 mode in the leakage-resilient setting. Finally, in an extensive implementation overview, we show that Isap v2.0 can be implemented securely with very low area requirements.

Originalsprache	englisch
Seiten (von - bis)	390-416
Seitenumfang	27
Fachzeitschrift	IACR Transactions on Symmetric Cryptology
Jahrgang	2020
Ausgabenummer	Special Issue 1
DOIs	https://doi.org/10.13154/tosc.v2020.iS1.390-416
Publikationsstatus	Veröffentlicht - Juni 2020

ASJC Scopus subject areas

Software
Computational Mathematics
Angewandte Mathematik
Angewandte Informatik

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Mangard, S.
1/05/18 → 31/10/20
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Mangard, S., Glanzer, C., Görtschacher, L. J., Bösch, W., Grosinger, J., Fischbacher, R. B., Deutschmann, B. & Shetty, D.
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title = "ISAP v2.0",

abstract = "We specify Isap v2.0, a lightweight permutation-based authenticated encryption algorithm that is designed to ease protection against side-channel and fault attacks. This design is an improved version of the previously published Isap v1.0, and offers increased protection against implementation attacks as well as more efficient implementations. Isap v2.0 is a candidate in NIST{\textquoteright}s LightWeight Cryptography (LWC) project, which aims to identify and standardize authenticated ciphers that are well-suited for applications in constrained environments. We provide a self-contained specification of the new Isap v2.0 mode and discuss its design rationale. We formally prove the security of the Isap v2.0 mode in the leakage-resilient setting. Finally, in an extensive implementation overview, we show that Isap v2.0 can be implemented securely with very low area requirements.",

keywords = "Authenticated encryption, Leakage resilience, NIST LWC, Sponges",

author = "Christoph Dobraunig and Maria Eichlseder and Stefan Mangard and Florian Mendel and Bart Mennink and Robert Primas and Thomas Unterluggauer",

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AU - Dobraunig, Christoph

AU - Eichlseder, Maria

AU - Mangard, Stefan

AU - Mendel, Florian

AU - Mennink, Bart

AU - Primas, Robert

AU - Unterluggauer, Thomas

PY - 2020/6

Y1 - 2020/6

N2 - We specify Isap v2.0, a lightweight permutation-based authenticated encryption algorithm that is designed to ease protection against side-channel and fault attacks. This design is an improved version of the previously published Isap v1.0, and offers increased protection against implementation attacks as well as more efficient implementations. Isap v2.0 is a candidate in NIST’s LightWeight Cryptography (LWC) project, which aims to identify and standardize authenticated ciphers that are well-suited for applications in constrained environments. We provide a self-contained specification of the new Isap v2.0 mode and discuss its design rationale. We formally prove the security of the Isap v2.0 mode in the leakage-resilient setting. Finally, in an extensive implementation overview, we show that Isap v2.0 can be implemented securely with very low area requirements.

AB - We specify Isap v2.0, a lightweight permutation-based authenticated encryption algorithm that is designed to ease protection against side-channel and fault attacks. This design is an improved version of the previously published Isap v1.0, and offers increased protection against implementation attacks as well as more efficient implementations. Isap v2.0 is a candidate in NIST’s LightWeight Cryptography (LWC) project, which aims to identify and standardize authenticated ciphers that are well-suited for applications in constrained environments. We provide a self-contained specification of the new Isap v2.0 mode and discuss its design rationale. We formally prove the security of the Isap v2.0 mode in the leakage-resilient setting. Finally, in an extensive implementation overview, we show that Isap v2.0 can be implemented securely with very low area requirements.

KW - Authenticated encryption

KW - Leakage resilience

KW - NIST LWC

KW - Sponges

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ISAP v2.0

Abstract

ASJC Scopus subject areas

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Projekte

Espresso - Skalierbare hardware-gesicherte authentifizierung und Personalisierung intelligenter Sensorknoten

Dessnet - Zuverlässige, sichere und zeitnahe Sensornetzwerke

EU - SOPHIA - Absicherung von Software gegen Physische Angriffe

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