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Paper 2014/271

STRIBOB: Authenticated Encryption from GOST R 34.11-2012 LPS Permutation

Markku-Juhani O. Saarinen

Abstract

Authenticated encryption algorithms protect both the confidentiality and integrity of messages in a single processing pass. In this note we show how to utilize the $L \circ P \circ S$ transform of the Russian GOST R 34.11-2012 standard hash ``Streebog'' to build an efficient, lightweight algorithm for Authenticated Encryption with Associated Data (AEAD) via the Sponge construction and BLNK padding. The proposed algorithm ``StriBob'' has attractive security properties, is faster than the Streebog hash alone, twice as fast as the GOST 28147-89 encryption algorithm, and requires only a modest amount of running-time memory. StriBob is a Round 1 candidate in the CAESAR competition.

Note: To appear in CTCrypt 2014 workshop, 05–06 June 2014, Moscow RU. http://ctcrypt.ru/

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Major revision. Proc. CTCrypt '14 (05-06 June 2014, Moscow). To appear in different form in Matematicheskie Voprosy Kriptografii [Mathematical Aspects of Cryptography], Steklov Mathematical Institute of RAS
Keywords
StriBobAuthenticated EncryptionGOST R 34.11-2012StreebogSponge ConstructionDuplexWrapBLNK PaddingCAESAR
Contact author(s)
mjos @ iki fi
History
2015-04-14: last of 6 revisions
2014-04-21: received
See all versions
Short URL
https://ia.cr/2014/271
License
Creative Commons Attribution
CC BY
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