Paper 2009/179 Original: eprint.iacr.org/2009/179 ↗

Near-Collision Attack on the Compression Function of Dynamic SHA2

Hongbo Yu
Xiaoyun Wang
Abstract

In this paper, we present a near-collision attack on the compression functions of Dynamic SHA2 for all the output sizes. For the Dynamic SHA2-224/256, the complexity is about $2^{45}$ operations and for the Dynamic SHA2-384/512, the complexity is about $2^{75}$.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2009-04-24: last updated
2009-04-24: published
Short URL
https://ia.cr/2009/179
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2009/179,
      author = {Hongbo Yu and Xiaoyun Wang},
      title = {Near-Collision Attack on the Compression Function of Dynamic SHA2},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/179},
      year = {2009},
      url = {https://eprint.iacr.org/2009/179}
}
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