Cryptology ePrint Archive: Report 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 with a single processing pass. 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. 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.

Category / Keywords: secret-key cryptography / StriBob, Authenticated Encryption, GOST R 34.11-2012, Streebog, Sponge Construction, SpongeWrap, MonkeyDuplex, CAESAR

Original Publication (with minor differences): CTCrypt '14

Date: received 17 Apr 2014, last revised 31 May 2014

Contact author: mjos at iki fi

Available format(s): PDF | BibTeX Citation

Note: To appear in CTCrypt 2014 workshop, 0506 June 2014, Moscow RU.

Version: 20140531:060118 (All versions of this report)

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