Abstract:
Internet Protocol (IP) has been used for most of modern communication systems standards as a networking protocol. It survived for over 30 years and has been an essential part of the Internet evolution. Today’s Internet is a much different than it was 30 years ago. Most traditional communications media -including telephone -are being restructured by the Internet, giving new services such as voice over Internet Protocol (VoIP).
As a result of increased demand for these services, the number of Internet-connected users and devices are growing at a rapid way.
Adopting IP to support new services introduces many challenges such as managing networking resources efficiently and true end-to-end functionality (i.e. end-to-end security, QoS, etc.) which is not feasible with IPv4.
IPv6 designed to be the successor to IPv4 with 128 bit to provide large address space. Additional features are impeded within the design to meet the demands of future networks. Implementing voice over IPv6 network with addition of encryption introduces an assortment of ways configurations.
In this research The Secure Real-Time Transport Protocol (SRTP) will be used for media encryption and Transport Layer Security (TLS) for secure signaling.
Testing Scenario will be conducted using soft-phones and Asterisk free PBX server running in Linux. It is expected that applying an encryption technique on VoIP will degrade QoS parameters
