Analysis of a measure of correlation between two binary strings of different lengths
Gustafson, Helen M., Simpson, Leonie R., & Golic, Jovan (2002) Analysis of a measure of correlation between two binary strings of different lengths. Australasian Journal of Combinatorics, 25, pp. 185-199.
The joint probability between two binary strings of differenet lengths has been demonstrated as a suitable basis for a correlation attack on the shrinking generator when the decimation probability is 0.5. As an extension of this, further computer simulations have been conducted to determine whether the joint probability can be used as a basis for similar correlation attacks on irregularly clocked shift registers, where the deletions occur independently with a fixed probabilitydifferent from 0.5. These results show that as the decimation probability increases, the length of the known keystream required for the joint probability to be a useful measure of correlation must also be increased. Thus the joint probability is shown to be a suitable basis for such correlation attacks, provided a sufficient length of the keystream is known.
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|Item Type:||Journal Article|
|Subjects:||Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2002 University of Queensland|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher: This journal is available online - use link above.|
|Deposited On:||20 Oct 2004|
|Last Modified:||02 Feb 2012 19:44|
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