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Paper 2013/096
State convergence in bit-based stream ciphers
Sui-Guan Teo and Harry Bartlett and Ali Alhamdan and Leonie Simpson and Kenneth Koon-Ho Wong and Ed Dawson
Abstract
Well-designed initialisation and keystream generation processes for stream ciphers should ensure that each key-IV pair generates a distinct keystream. In this paper, we analyse some ciphers where this does not happen due to state convergence occurring either during initialisation, keystream generation or both. We show how state convergence occurs in each case and identify two mechanisms which can cause state convergence.
Note: Under review
Metadata
- Available format(s)
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Stream ciphersstate convergenceMickeyA51Sfinks
- Contact author(s)
- teosuiguan @ gmail com
- History
- 2013-02-27: received
- Short URL
- https://ia.cr/2013/096
- License
-
CC BY