Paper 2018/124

Evaluating the indistinguishability of the XTS mode in the proposed security model

Nguyen Tuan Anh and Nguyen Bui Cuong

Abstract

In this paper, we consider the indistinguishability of XTS in some security models for both full final block and partial final block cases. Firstly, some evaluations of the indistinguishability up-to-block are presented. Then, we present a new security model in which the adversary can not control sector number, based on an $\epsilon$-collision resistant function. In this model, we give a bound of the distinguishing advantage that the adversary can get when attacks on XTS. The received results is an extension of \cite{6}.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
block cipherXTSindistinguishabilityciphertext stealing
Contact author(s)
nguyenbuicuong @ gmail com
History
2018-02-02: received
Short URL
https://ia.cr/2018/124
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/124,
      author = {Nguyen Tuan Anh and Nguyen Bui Cuong},
      title = {Evaluating the indistinguishability of the XTS mode in the proposed security model},
      howpublished = {Cryptology ePrint Archive, Paper 2018/124},
      year = {2018},
      note = {\url{https://eprint.iacr.org/2018/124}},
      url = {https://eprint.iacr.org/2018/124}
}
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