Paper 2018/950

Security bound for CTR-ACPKM internally re-keyed encryption mode

Liliya R. Akhmetzyanova, Evgeny K. Alekseev, and Stanislav V. Smyshlyaev

Abstract

In 2018 the CTR-ACPKM internally re-keyed block cipher mode was adopted in Russian Standardization System and must pass through the last formal standardization stages in IETF. The main distinctive feature of this mode is that during each message processing, the key, used for data blocks transformation, is periodically changed. In the current paper we obtained the security bound for this mode in the standard IND-CPNA security model.

Metadata
Available format(s)
PDF
Publication info
Preprint. MINOR revision.
Keywords
re-keyingblock cipher mode of operationCTRprovable security
Contact author(s)
lah @ cryptopro ru
History
2018-10-09: received
Short URL
https://ia.cr/2018/950
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/950,
      author = {Liliya R.  Akhmetzyanova and Evgeny K.  Alekseev and Stanislav V.  Smyshlyaev},
      title = {Security bound for CTR-ACPKM internally re-keyed encryption mode},
      howpublished = {Cryptology ePrint Archive, Paper 2018/950},
      year = {2018},
      note = {\url{https://eprint.iacr.org/2018/950}},
      url = {https://eprint.iacr.org/2018/950}
}
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