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On locking conditions in m-sequence generators for the use in digital watermarking

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3 Author(s)
A. Ahmad ; Department of Electrical and Computer Engineering, College of Engineering, Sultan Qaboos University, PO Box 33, Zip Code 123, Oman ; A. Al-Mashari ; A. M. J. Al-Lawati

The maximal length pseudo random binary sequence is known as m-sequence. The m-sequence of domain {0, 1} can be represented in bipolar form of sequence in domain {-1, 1}. The m-sequences are used for watermarking because of their very good correlation properties, noise like characteristics and resistance to interference. This paper investigates a new locking condition in the operations of an m-sequence generator. Through this finding it is revealed that an LFSR structure may turn into locking state due to particular seed selection other than the all zeros or all ones.

Published in:

Methods and Models in Computer Science, 2009. ICM2CS 2009. Proceeding of International Conference on

Date of Conference:

14-15 Dec. 2009