The ACPKM internal re-keying mechanism for block cipher modes of operation

Document Type Expired Internet-Draft (individual)
Authors Stanislav Smyshlyaev  , Evgeny Alekseev  , Igor Oshkin  , Lilia Ahmetzyanova  , Ekaterina Smyshlyaeva 
Last updated 2017-04-24 (latest revision 2016-10-21)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This specification presents an approach to increase the security of block cipher operation modes based on re-keying (with no additional keys needed) during each separate message processing. It provides an internal re-keying mechanism called ACPKM. This mechanism doesn't require additional secret parameters or complicated transforms - for key update only the base encryption function is used.


Stanislav Smyshlyaev (
Evgeny Alekseev (
Igor Oshkin (
Lilia Ahmetzyanova (
Ekaterina Smyshlyaeva (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)