VoIP security features Security Toolkit, and related standards-VoIP, security, t
Technology in the world Telecommunications Market continues to spread, on Service Suppliers, equipment manufacturers and end users, performance improvement, cost reduction and functional support to enable VoIP become a very attractive thing.
Due to people's growing interest in VoIP, voice Communicate Of Security Of the possibility of developing a VoIP solution, a key requirement. Packet-based communication particularly vulnerable to security risks, these risks include: Packet monitoring Voice "bugging", false ID, not pay services network use and manipulation of data packets caused by service interruption. Despite the security features included the implementation of VoIP is still a small number, but we now have to consider several criteria included within the scope.
Why should we discuss the security of VoIP?
Now PS TN (Public Switched Telephone Network) voice calls are often not safe, then the VoIP call is also necessary to have real security? The answer is twofold. First, IP network, the nature of their group are more vulnerable to security threats than PSTN. On the current services provided for the data network technology, the probing packet voice network, the physical gathering information than circuit-switched networks more easily. In addition, the current socio-political conditions of the new security concerns, the voice of our integrated network security features of the service providers and end users alike.
From the service provider perspective, the implementation of security measures to avoid all kinds of destructive behavior, such behavior may lead to theft of services and substantial loss of income. By accessing the network database and IP address, get fake registration services, you can use the service without pay, or the actual cost will be passed on to another customer's head. In addition, the telephone terminal equipment, implementation and configuration may be as effective devices to clone the same way and unknown circumstances in free and efficient access to services. If hackers can successfully access network equipment, modify the database or copy the device, then they will be threatened, resulting in the closure of voice network or "congestion", and control voice network. Lastly, such as Session Initiation Protocol (SIP), H.323 and Media Gateway Control Protocol (MGCP) and other packet network protocols to access data packets through the manipulation of information to modify the agreement, leading to the destination or the call connection data packet changes.
Other security threats would constitute a privacy threat to end users. Hackers only need a simple packet network "eavesdropping" can "hear" the voice-carrier channels, or "see" the call setup (signaling) information, which call for more information. If the user's personal information, behavior and habits are extracted for the illegal entry or disruptive behavior, then it will lead to personal information stolen or reputation. After cloning the terminal telephone equipment configuration, network protocol through the manipulation disguised as other innocent users, or "bugging" of ongoing transmission of voice and related signaling traffic for offline analysis, we can achieve the above purpose.
While the security threat is real, but that does not mean that VoIP deployment is completely vulnerable. We can implement security features to address the problem.
Internet Security Components Security, VoIP can make use of most of the currently existing safety data communication components. Current Internet security infrastructure is one of the key functions of data integrity. The component is to ensure the information between the two entities is not destroyed, but also to ensure that the receiver for confirmation. Similarly component of support is undeniable that the exclusion of digital signature message (via the security key), so as to avoid charges. Internet Security degree of security ensures that only messages of the receiver and the transmission side to see the contents of the message. Security component set (securityelementsuite) authentication feature to ensure users are satisfied only in the identity confirmation in order to access specific network.
According to end-users or service providers different levels of security concern, may require different levels of security. A total of its features is the voice payload encryption. Another level of security requires the establishment of telephone call signaling messages must be encrypted.
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