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

Liliya R.  Akhmetzyanova; Evgeny K.  Alekseev; Stanislav V.  Smyshlyaev

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-keying block cipher mode of operation CTR provable security
Contact author(s): lah @ cryptopro ru
History: 2018-10-09: received
Short URL: https://ia.cr/2018/950
License: 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},
      url = {https://eprint.iacr.org/2018/950}
}