HILA5 pindakaas: on the CCA security of lattice-based encryption with error correction

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

6 Citaten (Scopus)
2 Downloads (Pure)

Samenvatting

We show that the NISTPQC submission HILA5 is not secure against chosen-ciphertext attacks. Specifically, we demonstrate a key-recovery attack on HILA5 using an active attack on reused keys. The attack works around the error correction in HILA5. The attack applies to the HILA5 key-encapsulation mechanism (KEM), and also to the public-key encryption mechanism (PKE) obtained by NIST’s procedure for combining the KEM with authenticated encryption. This contradicts the most natural interpretation of the IND-CCA security claim for HILA5.

Originele taal-2Engels
TitelProgress in Cryptology - AFRICACRYPT 2018
Subtitel10th International Conference on Cryptology in Africa, Marrakesh, Morocco, May 7–9, 2018, Proceedings
RedacteurenA. Joux, A. Nitaj, T. Rachidi
Plaats van productieDordrecht
UitgeverijSpringer
Pagina's203-216
Aantal pagina's14
ISBN van elektronische versie978-3-319-89339-6
ISBN van geprinte versie978-3-319-89338-9
DOI's
StatusGepubliceerd - 1 jan 2018
Evenement10th International Conference on the Theory and Application of Cryptographic Techniques in Africa (Africacrypt 2018) - Marrakesh, Marokko
Duur: 7 mei 20189 mei 2018
Congresnummer: 10

Publicatie series

NaamLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10831 LNCS
ISSN van geprinte versie0302-9743
ISSN van elektronische versie1611-3349

Congres

Congres10th International Conference on the Theory and Application of Cryptographic Techniques in Africa (Africacrypt 2018)
Verkorte titelAFRICACRYPT 2018
LandMarokko
StadMarrakesh
Periode7/05/189/05/18

Vingerafdruk Duik in de onderzoeksthema's van 'HILA5 pindakaas: on the CCA security of lattice-based encryption with error correction'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit

    Bernstein, D. J., Groot Bruinderink, L., Lange, T., & Panny, L. (2018). HILA5 pindakaas: on the CCA security of lattice-based encryption with error correction. In A. Joux, A. Nitaj, & T. Rachidi (editors), Progress in Cryptology - AFRICACRYPT 2018: 10th International Conference on Cryptology in Africa, Marrakesh, Morocco, May 7–9, 2018, Proceedings (blz. 203-216). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10831 LNCS). Springer. https://doi.org/10.1007/978-3-319-89339-6_12