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Develop Security of Non-linear Stream Cipher System Based on Adder | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 33, Issue 3, 2007, Pages 1-6 PDF (0 K) | ||
| Abstract | ||
| The strength of stream cipher system depends on the strength of keystream generator. The generator generates pseudo-random-sequence which passes randomness tests. Non-linear stream cipher based on Adder has a number of shortages. This weakness is failure of randomness tests and success of correlation attacks. In this paper, Adder is developed by inserting a third shift register. It leads to improve the generator to pass randomness tests. Also, the non-linear complexity is increased and correlation attack is faced. | ||
| Keywords | ||
| Stream cipher; Adder generator; non; Linear; feedback shift registers | ||
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