A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not

Cong Chen; Mohammad Farmani; Thomas and Eisenbarth

doi:10.1007/978-3-662-53887-6_30

A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not

Cong Chen, Mohammad Farmani, Thomas and Eisenbarth

Institut für IT-Sicherheit

Worcester Polytechnic Institute

21 Zitate (Scopus)

Abstract

This work explores the possibilities for practical Threshold Implementation (TI) with only two shares in order for a smaller design that needs less randomness but is still first-order leakage resistant. We present the first two-share Threshold Implementations of two lightweight block ciphers---Simon and Present. The implementation results show that two-share TI improves the compactness but usually further reduces the throughput when compared with first-order resistant three-share schemes. Our leakage analysis shows that two-share TI can retain perfect first-order resistance. However, the analysis also exposes a strong second-order leakage. All results are backed up by simulation as well as analysis of actual implementations.

Originalsprache	Englisch
Titel	Advances in Cryptology – ASIACRYPT 2016
Redakteure/-innen	Jung Hee Cheon, Tsuyoshi Takagi
Seitenumfang	25
Band	10031
Erscheinungsort	Berlin, Heidelberg
Herausgeber (Verlag)	Springer Berlin Heidelberg
Erscheinungsdatum	09.11.2016
Seiten	819-843
ISBN (Print)	978-3-662-53886-9
ISBN (elektronisch)	978-3-662-53887-6
DOIs	https://doi.org/10.1007/978-3-662-53887-6_30
Publikationsstatus	Veröffentlicht - 09.11.2016
Veranstaltung	22th International Conference on the Theory and Application of Cryptology and Information Security - Hanoi, Vietnam Dauer: 04.12.2016 → 08.12.2016

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Dokumente

10.1007/978-3-662-53887-6_30

https://eprint.iacr.org/2016/434.pdf

Weitere Links

https://www.researchgate.net/publication/309778035_A_Tale_of_Two_Shares_Why_Two-Share_Threshold_Implementation_Seems_Worthwhile-and_Why_It_Is_Not

Zitieren

Chen, C., Farmani, M., & and Eisenbarth, T. (2016). A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not. in J. H. Cheon, & T. Takagi (Hrsg.), Advances in Cryptology – ASIACRYPT 2016 (Band 10031, S. 819-843). (Lecture Notes in Computer Science; Band 10031). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-53887-6_30

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abstract = "This work explores the possibilities for practical Threshold Implementation (TI) with only two shares in order for a smaller design that needs less randomness but is still first-order leakage resistant. We present the first two-share Threshold Implementations of two lightweight block ciphers---Simon and Present. The implementation results show that two-share TI improves the compactness but usually further reduces the throughput when compared with first-order resistant three-share schemes. Our leakage analysis shows that two-share TI can retain perfect first-order resistance. However, the analysis also exposes a strong second-order leakage. All results are backed up by simulation as well as analysis of actual implementations.",

author = "Cong Chen and Mohammad Farmani and \{and Eisenbarth\}, Thomas",

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Chen, C, Farmani, M & and Eisenbarth, T 2016, A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not. in JH Cheon & T Takagi (Hrsg.), Advances in Cryptology – ASIACRYPT 2016. Bd. 10031, Lecture Notes in Computer Science, Bd. 10031, Springer Berlin Heidelberg, Berlin, Heidelberg, S. 819-843, 22th International Conference on the Theory and Application of Cryptology and Information Security, Hanoi, Vietnam, 04.12.16. https://doi.org/10.1007/978-3-662-53887-6_30

A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not. / Chen, Cong; Farmani, Mohammad; and Eisenbarth, Thomas.
Advances in Cryptology – ASIACRYPT 2016. Hrsg. / Jung Hee Cheon; Tsuyoshi Takagi. Band 10031 Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. S. 819-843 (Lecture Notes in Computer Science; Band 10031).

Publikation: Kapitel in Büchern/Berichten/Konferenzbänden › Kapitel › Begutachtung

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AU - Chen, Cong

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N2 - This work explores the possibilities for practical Threshold Implementation (TI) with only two shares in order for a smaller design that needs less randomness but is still first-order leakage resistant. We present the first two-share Threshold Implementations of two lightweight block ciphers---Simon and Present. The implementation results show that two-share TI improves the compactness but usually further reduces the throughput when compared with first-order resistant three-share schemes. Our leakage analysis shows that two-share TI can retain perfect first-order resistance. However, the analysis also exposes a strong second-order leakage. All results are backed up by simulation as well as analysis of actual implementations.

AB - This work explores the possibilities for practical Threshold Implementation (TI) with only two shares in order for a smaller design that needs less randomness but is still first-order leakage resistant. We present the first two-share Threshold Implementations of two lightweight block ciphers---Simon and Present. The implementation results show that two-share TI improves the compactness but usually further reduces the throughput when compared with first-order resistant three-share schemes. Our leakage analysis shows that two-share TI can retain perfect first-order resistance. However, the analysis also exposes a strong second-order leakage. All results are backed up by simulation as well as analysis of actual implementations.

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A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why It Is Not

Abstract

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Dokumente

Weitere Links

Fingerprint

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