Paper 2001/021 Original: eprint.iacr.org/2001/021 ↗

The Rectangle Attack - Rectangling the Serpent

Biham Eli
Orr Dunkelman
Nathan Keller
Abstract

Serpent is one of the 5 AES finalists. The best attack published so far analyzes up to 9 rounds. In this paper we present attacks on 7-round, 8-round, and 10-round variants of Serpent. We attack 7-round variant of Serpent with all key lengths, and 8- and 10-round variants wih 256-bit keys. The 10-roun attack on the 256-bit keys variants is the best published attack on the cipher. The attack enhances the amplified boomerang attack and uses better differentials. We also present the best 3-round, 4-round, 5-round and 6-round differential characteristics of Serpent.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2001-03-06: last updated
2001-03-06: published
Short URL
https://ia.cr/2001/021
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2001/021,
      author = {Biham Eli and Orr Dunkelman and Nathan Keller},
      title = {The Rectangle Attack - Rectangling the Serpent},
      howpublished = {Cryptology {ePrint} Archive, Paper 2001/021},
      year = {2001},
      url = {https://eprint.iacr.org/2001/021}
}
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