Welcome to the resource topic for 2013/096
Title:
State convergence in bit-based stream ciphers
Authors: Sui-Guan Teo, Harry Bartlett, Ali Alhamdan, Leonie Simpson, Kenneth Koon-Ho Wong, 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.
ePrint: https://eprint.iacr.org/2013/096
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