Forgery Attacks on FlexAE and FlexAEAD

Maria Eichlseder; Daniel Kales; Markus Schofnegger

doi:https://doi.org/10.1007/978-3-030-35199-1_10

Forgery Attacks on FlexAE and FlexAEAD

Maria Eichlseder, Daniel Kales, Markus Schofnegger

Institut für Angewandte Informationsverarbeitung und Kommunikationstechnologie (7050)

Publikation: Beitrag in Buch/Bericht/Konferenzband › Beitrag in einem Konferenzband › Begutachtung

Abstract

FlexAEAD is one of the round-1 candidates in the ongoing NIST Lightweight Cryptography standardization project. In this note, we show several forgery attacks on FlexAEAD with complexity less than the security bound given by the designers, such as a block reordering attack on full FlexAEAD-128 with estimated success probability about 2^54. Additionally, we show some trivial forgeries and point out domain separation issues.

Originalsprache	englisch
Titel	Cryptography and Coding - IMACC 2019
Herausgeber (Verlag)	Springer, Cham
Seiten	200-214
Seitenumfang	15
DOIs	https://doi.org/10.1007/978-3-030-35199-1_10
Publikationsstatus	Veröffentlicht - Nov. 2019
Veranstaltung	IMACC 2019: 17th IMA International Conference on Cryptography and Coding - Oxford, Großbritannien / Vereinigtes Königreich Dauer: 16 Dez. 2019 → 18 Dez. 2019

Publikationsreihe

Name	Lecture Notes in Computer Science
Band	11929

Konferenz

Konferenz	IMACC 2019
Land/Gebiet	Großbritannien / Vereinigtes Königreich
Ort	Oxford
Zeitraum	16/12/19 → 18/12/19

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https://doi.org/10.1007/978-3-030-35199-1_10

https://eprint.iacr.org/2019/679Lizenz: CC BY 4.0

Forgery Attacks on FlexAE and FlexAEAD
Maria Eichlseder (Redner/in)
18 Dez. 2019
Aktivität: Vortrag oder Präsentation › Vortrag bei Konferenz oder Fachtagung › Science to science

Dieses zitieren

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title = "Forgery Attacks on FlexAE and FlexAEAD",

abstract = "FlexAEAD is one of the round-1 candidates in the ongoing NIST Lightweight Cryptography standardization project. In this note, we show several forgery attacks on FlexAEAD with complexity less than the security bound given by the designers, such as a block reordering attack on full FlexAEAD-128 with estimated success probability about 2^54. Additionally, we show some trivial forgeries and point out domain separation issues.",

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AB - FlexAEAD is one of the round-1 candidates in the ongoing NIST Lightweight Cryptography standardization project. In this note, we show several forgery attacks on FlexAEAD with complexity less than the security bound given by the designers, such as a block reordering attack on full FlexAEAD-128 with estimated success probability about 2^54. Additionally, we show some trivial forgeries and point out domain separation issues.

KW - authenticated encryption

KW - forgery attack

KW - NIST LWC

U2 - https://doi.org/10.1007/978-3-030-35199-1_10

DO - https://doi.org/10.1007/978-3-030-35199-1_10

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T3 - Lecture Notes in Computer Science

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BT - Cryptography and Coding - IMACC 2019

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ER -

Forgery Attacks on FlexAE and FlexAEAD

Abstract

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Forgery Attacks on FlexAE and FlexAEAD

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