Paper 2005/257 Original: eprint.iacr.org/2005/257 ↗
TMD-Tradeoff and State Entropy Loss Considerations of Streamcipher MICKEY
Abstract
We give three weaknesses of a recently proposed streamcipher MICKEY. A small class of weak keys is found and we show time-memory-data tradeoff is applicable. We also show that the state update function reduces entropy of the internal state as it is iterated, resulting in keystreams that start out differently but become merged together towards the end.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2008-08-06: last updated
- 2005-08-11: published
- Short URL
- https://ia.cr/2005/257
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2005/257,
author = {Jin Hong and Woo-Hwan Kim},
title = {TMD-Tradeoff and State Entropy Loss Considerations of Streamcipher MICKEY},
howpublished = {Cryptology {ePrint} Archive, Paper 2005/257},
year = {2005},
url = {https://eprint.iacr.org/2005/257}
}