Generating a Strong Key for a Stream Cipher Systems Based on Permutation Networks
The choice of binary Pseudonoise (PN) sequences with specific properties, having long period high complexity, randomness, minimum cross and auto- correlation which are essential for some communication systems. In this research a nonlinear PN generator is introduced . It consists of a combinati...
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| Format: | Article |
| Language: | Arabic |
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College of Science for Women, University of Baghdad
2007-09-01
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| Series: | Baghdad Science Journal |
| Online Access: | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/831 |
| Summary: | The choice of binary Pseudonoise (PN) sequences with specific properties, having long period high complexity, randomness, minimum cross and auto- correlation which are essential for some communication systems.
In this research a nonlinear PN generator is introduced . It consists of a combination of basic components like Linear Feedback Shift Register (LFSR), ?-element which is a type of RxR crossbar switches.
The period and complexity of a sequence which are generated by the proposed generator are computed and the randomness properties of these sequences are measured by well-known randomness tests.
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| ISSN: | 2078-8665 2411-7986 |