Welcome to the resource topic for 2014/111
Title:
A Note on the CLRW2 Tweakable Block Cipher Construction
Authors: Gordon Procter
Abstract:In this note, we describe an error in the proof for CLRW2 given by Landecker et al. in their paper at CRYPTO 2012 on the beyond-birthday-bound security for tweakable block ciphers. We are able to resolve the issue, give a new bound for the security of CLRW2, and identify a potential limitation of this proof technique when looking to extend the scheme to provide asymptotic security.
ePrint: https://eprint.iacr.org/2014/111
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