Title	An Efficient Approach for Increasing Security to Symmetric Data Encryption
Author	Muhammad Nazrul Islam, Md. Monir Hossain Mia, Md. Foizul Islam, M.A. Matin
Citation	Vol. 8  No. 4  pp. 16-20
Keywords	Computer Security, Block cipher, plain text, cipher text, Differential cryptanalysis, Linear cryptanalysis, Symmetric Encryption

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	Cryptography: The Sciene of Secure Communication
Author	Jangala. Sasi Kiran, M.Anusha, A.Vijaykumar, M.Kavya
Citation	Vol. 16  No. 4  pp. 129-134
Keywords	Network security, cryptography, symmetric encryption, asymmetric encryption and Caesar table.