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URN: urn:nbn:de:0030-drops-10172
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A Collision-Resistant Rate-1 Double-Block-Length Hash Function

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Abstract

This paper proposes a construction for collision resistant
$2n$-bit hash functions, based
on $n$-bit block ciphers with $2n$-bit keys. The construction is analysed
in the ideal cipher model; for $n=128$ an adversary would need roughly
$2^{122}$ units of time to find a collision.
The construction employs ``combinatorial'' hashing
as an underlying building block (like
Universal Hashing for cryptographic
message authentication by Wegman and Carter).
The construction runs at rate~1, thus improving on a similar
rate~1/2 approach by Hirose (FSE 2006).


BibTeX - Entry

@InProceedings{lucks:DagSemProc.07021.3,
  author =	{Lucks, Stefan},
  title =	{{A Collision-Resistant Rate-1 Double-Block-Length Hash Function}},
  booktitle =	{Symmetric Cryptography},
  pages =	{1--14},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{7021},
  editor =	{Eli Biham and Helena Handschuh and Stefan Lucks and Vincent Rijmen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2007/1017},
  URN =		{urn:nbn:de:0030-drops-10172},
  doi =		{10.4230/DagSemProc.07021.3},
  annote =	{Keywords: Hash function, provable security, double-block-length}
}

Keywords: Hash function, provable security, double-block-length
Seminar: 07021 - Symmetric Cryptography
Issue date: 2007
Date of publication: 06.06.2007


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