Paper 2008/407
Indifferentiable Security Analysis of choppfMD, chopMD, a chopMDP, chopWPH, chopNI, chopEMD, chopCS, and chopESh Hash Domain Extensions
Donghoon Chang, Jaechul Sung, Seokhie Hong, and Sangjin Lee
Abstract
We provide simple and unified indifferentiable security analyses of choppfMD, chopMD, a chopMDP (where the permutation $P$ is to be xored with any non-zero constant.), chopWPH (the chopped version of Wide-Pipe Hash proposed in \cite{Lucks05}), chopEMD, chopNI, chopCS, chopESh hash domain extensions. Even though there are security analysis of them in the case of no-bit chopping (i.e., $s=0$), there is no unified way to give security proofs. All our proofs in this paper follow the technique introduced in \cite{BeDaPeAs08}. These proofs are simple and easy to follow.
Metadata
- Available format(s)
-
PDF
PS
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Hash FunctionDomain ExtensionRandom OracleIndifferentiability
- Contact author(s)
- pointchang @ gmail com
- History
- 2008-12-12: last of 2 revisions
- 2008-09-24: received
- See all versions
- Short URL
- https://ia.cr/2008/407
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2008/407,
author = {Donghoon Chang and Jaechul Sung and Seokhie Hong and Sangjin Lee},
title = {Indifferentiable Security Analysis of {choppfMD}, {chopMD}, a {chopMDP}, {chopWPH}, {chopNI}, {chopEMD}, {chopCS}, and {chopESh} Hash Domain Extensions},
howpublished = {Cryptology {ePrint} Archive, Paper 2008/407},
year = {2008},
url = {https://eprint.iacr.org/2008/407}
}
