Title	Design of a Robust Cryptosystem Algorithm for Non-Invertible Matrices Based on Hill Cipher
Author	Rushdi A. Hamamreh, Mousa Farajallah
Citation	Vol. 9  No. 5  pp. 11-16
Keywords	Plaintext, Ciphertext, Symmetric Encryption, Hill Cipher, known-plaintext attack, security

Title	Classification of Substitution Ciphers using Neural Networks
Author	G.Sivagurunathan, V.Rajendran, T.Purusothaman
Citation	Vol. 10  No. 3  pp. 274-279
Keywords	Cipher text, Classifier, Back propagation neural network, Playfair cipher, Hill Cipher, Vigen?re cipher