Title	X. 509 and PGP Public Key Infrastructure methods: A critical review
Author	Shahin Fatima, Shish Ahmad, Shadab Siddiqui
Citation	Vol. 15  No. 5  pp. 55-59
Keywords	public key infrastructure, X.509 certificate, certificate authority (CA), PGP format, authentication, confidentiality

Title	An Avoid Unwanted Messages from OSN User Wall: Content Based Filtering Approach
Author	Dipali D. Vidhate, Ajay P. Thakare
Citation	Vol. 15  No. 5  pp. 50-54
Keywords	OSN, filtering

Title	Partially Interleaved Modular Karatsuba-Ofman Multiplication
Author	Gokay Saldamli, YoJin Baek, Levent Ertaul
Citation	Vol. 15  No. 5  pp. 44-49
Keywords	Modular multiplication Karatsuba-Ofman multiplication Bipartite reduction.

Title	Exploiting Omega Networks to Hide Text-in-Text Messages
Author	Ala Hamarsheh
Citation	Vol. 15  No. 5  pp. 39-43
Keywords	Steganography, watermarking, encryption, secret message, cover message, secret key.