State convergence in the initialisation of stream ciphers
Teo, Sui-Guan, Alhamdan, Ali, Bartlett, Harry, Simpson, Leonie R., Wong, Kenneth Koon-Ho, & Dawson, Edward (2011) State convergence in the initialisation of stream ciphers. In Parampalli, Udaya & Hawkes, Philip (Eds.) Information Security and Privacy, Springer Berlin / Heidelberg, RMIT University, Melbourne, Vic, pp. 75-88.
An initialisation process is a key component in modern stream cipher design. A well-designed initialisation process should ensure that each key-IV pair generates a different key stream. In this paper, we analyse two ciphers, A5/1 and Mixer, for which this does not happen due to state convergence. We show how the state convergence problem occurs and estimate the effective key-space in each case.
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|Item Type:||Conference Paper|
|Additional Information:||Published as part of Lecture Notes in Computer Science|
|Keywords:||Stream Cipher, Initialisation, State Convergence, A5/1, Mixer|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300) > Computer System Security (080303)|
|Divisions:||Past > Schools > Computer Science
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Information Security Institute
Past > Schools > Mathematical Sciences
|Copyright Owner:||Copyright 2011 Springer|
|Copyright Statement:||The original publication is available at SpringerLink http://www.springerlink.com|
|Deposited On:||14 Jul 2011 22:19|
|Last Modified:||16 Feb 2012 17:40|
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