Paper 2009/201
Enhanced Cryptanalysis of Substitution Cipher Chaining mode (SCC-128)
Mohamed Abo El-Fotouh and Klaus Diepold
Abstract
In this paper, we present an enhanced cryptanalysis of the Substitution Cipher Chaining mode (SCC)~\cite{scc}. In~\cite{scc_attack}, SCC-128 (SCC which uses AES with 128-bit key) was broken using 5 attacks, where the authors used an active attack model (where the attacker can force the disk encryption application to re-encrypt a sector for her), the complexity of these attacks are at most 2$^{40}$ cipher executions. In this paper, we enhance the main attack on SCC-128, this enhancement decrease the complexity of SCC-128 attacks to be at most 2$^{14}$ cipher executions. We also cryptanalze SCC-128 in a less restrictive attack model, our attacks are upper bounded with 2$^{40}$ cipher executions.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- cryptanalysisSCC modedisk encryption
- Contact author(s)
- mohamed @ tum de
- History
- 2009-05-20: received
- Short URL
- https://ia.cr/2009/201
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2009/201,
author = {Mohamed Abo El-Fotouh and Klaus Diepold},
title = {Enhanced Cryptanalysis of Substitution Cipher Chaining mode ({SCC}-128)},
howpublished = {Cryptology {ePrint} Archive, Paper 2009/201},
year = {2009},
url = {https://eprint.iacr.org/2009/201}
}
