A Novel Protocol Design and Collaborative Forensics Mechanism for VoIP Services
The simplicity and low cost of Voice over Internet Protocol (VoIP) services has made these services increasingly popular as the Internet has grown. Unfortunately, these advantages of VoIP are attractive to both legitimate and nefarious users, and VoIP is often used by criminals to communicate and conduct illegal activities (such as fraud or blackmail) without being intercepted by Law Enforcement Agencies (LEAs). However, VoIP can also increase the efficiency of law enforcement and forensic collaboration. Currently, VoIP researchers have only proposed a framework for this type of partnership, and have yet to provide a common protocol for forensic Internet collaboration. As a result, Internet-based collaboration between agencies is not widespread.