Reduction of Key Search Space of Vigenere Cipher Using Particle Swarm Optimization

@inproceedings{Sivagurunathan2011ReductionOK,
  title={Reduction of Key Search Space of Vigenere Cipher Using Particle Swarm Optimization},
  author={G. Sivagurunathan and Thiyagarajan Purusothaman},
  year={2011}
}
Problem statement: With the demand for effective network security is i ncreasing, it becomes necessary to find the strength and weakness es 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… CONTINUE READING