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

Title	Integrating Classical Encryption with Modern Technique
Author	Fauzan Saeed, Mustafa Rashid
Citation	Vol. 10  No. 5  pp. 280-285
Keywords	Network security, Playfair cipher, viginere cipher, Classical encryption, Modern Encryption

Title	Data Encryption and Hiding using Playfair and Complementary Techniques based on DNA Sequences
Author	Ahmed Elhadad
Citation	Vol. 22  No. 1  pp. 697-701
Keywords	DNA, Playfair, complementary technique, reference DNA, Playfair cipher.