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Abstract
The block cipher Jarvis and the hash function Friday, both members of the MARVELlous family of cryptographic primitives, were recently proposed as custom designs aimed at addressing bottlenecks involving practical applications of STARKs. In the proposal several types of algebraic attacks were ruled out, and security arguments from Rijndael/AES were used to inform the choice for the number of rounds, with extra security margin added. In this work we describe new algebraic attacks on Jarvis and Friday using Gröbner bases, showing that the proposed number of rounds is not sufficient to provide security. In Jarvis, the round function is obtained by combining a finite field inversion S-box with a full-degree linearised permutation polynomial. However, we show that even though the high degree of this polynomial should prevent some algebraic attacks (as claimed by the designers), their particular algebraic properties make the designs vulnerable to Gröbner basis attacks. Our analysis illustrates that block cipher designs for algebraic platforms such as STARKs, FHE or MPC may be particularly vulnerable to algebraic attacks. Finally, we argue that MiMC -- a cipher similar in structure to Jarvis -- is resistant against our proposed attack strategy.
Original language | English |
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Title of host publication | Advances in Cryptology - ASIACRYPT 2019 |
Place of Publication | Cham |
Publisher | Springer |
Pages | 371-397 |
ISBN (Print) | 978-3-030-34617- |
DOIs | |
Publication status | Published - 2019 |
Event | ASIACRYPT 2019 - Kobe, Japan Duration: 8 Dec 2019 → 12 Dec 2019 |
Publication series
Name | Lecture Notes in Computer Science |
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Volume | 11923 |
Conference
Conference | ASIACRYPT 2019 |
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Country/Territory | Japan |
City | Kobe |
Period | 8/12/19 → 12/12/19 |
Keywords
- Gröbner Basis
- MARVELlous
- Jarvis
- Friday
- MiMC
- STARKs
- Algebraic Cryptanalysis
- Arithmetic Circuits
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Dive into the research topics of 'Algebraic Cryptanalysis of STARK-Friendly Designs: Application to MARVELlous and MiMC'. Together they form a unique fingerprint.Activities
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Algebraic Cryptanalysis of STARK-Friendly Designs: Application to MARVELlous and MiMC
Reinhard Lüftenegger (Speaker)
19 Dec 2019Activity: Talk or presentation › Talk at conference or symposium › Science to science