Samenvatting
There is a well-known gap between second-preimage resistance and preimage resistance for length-preserving hash functions. This paper introduces a simple concept that fills this gap. One consequence of this concept is that tight reductions can remove interactivity for multi-target length-preserving preimage problems, such as the problems that appear in analyzing hash-based signature systems. Previous reduction techniques applied to only a negligible fraction of all length-preserving hash functions, presumably excluding all off-the-shelf hash functions.
Originele taal-2 | Engels |
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Titel | Advances in Cryptology – ASIACRYPT 2019 - 25th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings |
Redacteuren | Steven D. Galbraith, Shiho Moriai |
Plaats van productie | Berlin |
Uitgeverij | Springer |
Hoofdstuk | 2 |
Pagina's | 33-62 |
Aantal pagina's | 30 |
ISBN van elektronische versie | 978-3-030-34618-8 |
ISBN van geprinte versie | 978-3-030-34617-1 |
DOI's | |
Status | Gepubliceerd - 22 nov. 2019 |
Evenement | 25th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2019 - Kobe, Japan Duur: 8 dec. 2019 → 12 dec. 2019 Congresnummer: 25 |
Publicatie series
Naam | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 11923 LNCS |
ISSN van geprinte versie | 0302-9743 |
ISSN van elektronische versie | 1611-3349 |
Congres
Congres | 25th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2019 |
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Verkorte titel | ASIACRYPT 2019 |
Land/Regio | Japan |
Stad | Kobe |
Periode | 8/12/19 → 12/12/19 |