Title	Alternative Engine to Detect and Block Port Scan Attacks using Virtual Network Environments
Author	Walter Fuertes, Patricio Zambrano, Marco S?nchez, Pablo Gamboa
Citation	Vol. 11  No. 11  pp. 14-23
Keywords	Network attacks, port scan attack, security, virtual network environments

Title	Performance Evaluation of RSA Variants and Elliptic Curve Cryptography on Handheld Devices
Author	Jagdish Bhatta, Lok Prakash Pandey
Citation	Vol. 11  No. 11  pp. 8-13
Keywords	Elliptic Curve Cryptography, RSA, Public Key Cryptography, Network Security, Handheld Devices

Title	Non-Traditional Security and Role of GIS
Author	Tariq Rahim Soomro
Citation	Vol. 11  No. 11  pp. 1-7
Keywords	GIS, Security, Non-Traditional Security, Threats, Challenges

Title	Vertical Handoff in Future Heterogenous 4G Network
Author	Mithun B Patil
Citation	Vol. 11  No. 10  pp. 201-206
Keywords	4G, Mobile Node, Radio network controller, seamless handoff, SGSN, UMTS, WLAN