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Research ArticleOpen accessPhrase in the titleReduction of Key Search Space of Vigenere Cipher Using Particle Swarm OptimizationGanapathi Sivagurunathan, T. PurusothamanProblem statement: With the demand for effective network security is increasing, it becomes necessary to find the strength and weaknesses of the existing cryptographic methods. Vigenere cipher, a classical cipher is analyzed for its strength against a cipher only attack. Approach: The cipher texts so selected were of various sizes up to 1 Kb. A biologically inspired algorithm, Particle Swarm … …Journal of Computer Science, Vol. 7, Issue 11 · 18 Aug 2011 · 7,234 accessesView PDF Cite

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