[Resource Topic] 2018/950: Security bound for CTR-ACPKM internally re-keyed encryption mode

Welcome to the resource topic for 2018/950

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

Authors: Liliya R. Akhmetzyanova, Evgeny K. Alekseev, 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.

ePrint: https://eprint.iacr.org/2018/950

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