Paper 2006/269
An Analysis of the Hermes8 Stream Ciphers
Steve Babbage, Carlos Cid, Norbert Pramstaller, and Havard Raddum
Abstract
Hermes8 is one of the stream ciphers submitted to the ECRYPT Stream Cipher Project (eSTREAM). In this paper we present an analysis of the Hermes8 stream ciphers. In particular, we show an attack on the latest version of the cipher (Hermes8F), which requires very few known keystream bytes and recovers the cipher secret key in less than a second on a normal PC. Furthermore, we make some remarks on the cipher's key schedule and discuss some properties of ciphers with similar algebraic structure to Hermes8.
Note: Updated version presented at ACISP 2007.
Metadata
- Available format(s)
-
PDF PS
- Publication info
- Published elsewhere. Presented at ACISP 2007.
- Keywords
- Hermes8Stream CipherCryptanalysis.
- Contact author(s)
- carlos cid @ rhul ac uk
- History
- 2007-06-28: revised
- 2006-08-15: received
- See all versions
- Short URL
- https://ia.cr/2006/269
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2006/269,
author = {Steve Babbage and Carlos Cid and Norbert Pramstaller and Havard Raddum},
title = {An Analysis of the Hermes8 Stream Ciphers},
howpublished = {Cryptology {ePrint} Archive, Paper 2006/269},
year = {2006},
url = {https://eprint.iacr.org/2006/269}
}