NIST Net: a Linux-based network emulation tool
ACM SIGCOMM Computer Communication Review
Measuring IP and TCP behavior on edge nodes with Tstat
Computer Networks: The International Journal of Computer and Telecommunications Networking
Internet traffic classification using bayesian analysis techniques
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Quantifying Skype user satisfaction
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Advanced Network Fingerprinting
RAID '08 Proceedings of the 11th international symposium on Recent Advances in Intrusion Detection
ACM SIGMETRICS Performance Evaluation Review
Tunnel Hunter: Detecting application-layer tunnels with statistical fingerprinting
Computer Networks: The International Journal of Computer and Telecommunications Networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
Understanding IPv6 Usage: Communities and Behaviors
APNOMS '08 Proceedings of the 11th Asia-Pacific Symposium on Network Operations and Management: Challenges for Next Generation Network Operations and Service Management
Skype video responsiveness to bandwidth variations
Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video
Traffic analysis of peer-to-peer IPTV communities
Computer Networks: The International Journal of Computer and Telecommunications Networking
Efficient application identification and the temporal and spatial stability of classification schema
Computer Networks: The International Journal of Computer and Telecommunications Networking
Profiling and identification of P2P traffic
Computer Networks: The International Journal of Computer and Telecommunications Networking
Rapid identification of Skype traffic flows
Proceedings of the 18th international workshop on Network and operating systems support for digital audio and video
On Metrics to Distinguish Skype Flows from HTTP Traffic
Journal of Network and Systems Management
TIE: A Community-Oriented Traffic Classification Platform
TMA '09 Proceedings of the First International Workshop on Traffic Monitoring and Analysis
Accurate, Fine-Grained Classification of P2P-TV Applications by Simply Counting Packets
TMA '09 Proceedings of the First International Workshop on Traffic Monitoring and Analysis
Detection and Tracking of Skype by Exploiting Cross Layer Information in a Live 3G Network
TMA '09 Proceedings of the First International Workshop on Traffic Monitoring and Analysis
KISS: Stochastic Packet Inspection
TMA '09 Proceedings of the First International Workshop on Traffic Monitoring and Analysis
Identify P2P Traffic by Inspecting Data Transfer Behaviour
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
A Real-Time Algorithm for Skype Traffic Detection and Classification
NEW2AN '09 and ruSMART '09 Proceedings of the 9th International Conference on Smart Spaces and Next Generation Wired/Wireless Networking and Second Conference on Smart Spaces
On dominant characteristics of residential broadband internet traffic
Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference
Challenging statistical classification for operational usage: the ADSL case
Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference
A framework for foresighted resource reciprocation in P2P networks
IEEE Transactions on Multimedia
Feasibility evaluation of a communication-oriented P2P system in mobile environments
Mobility '09 Proceedings of the 6th International Conference on Mobile Technology, Application & Systems
Performance evaluation of a Kademlia-based communication-oriented P2P system under churn
Computer Networks: The International Journal of Computer and Telecommunications Networking
Identify P2P traffic by inspecting data transfer behavior
Computer Communications
Entropy-based traffic filtering to support real-time Skype detection
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Diffprobe: detecting ISP service discrimination
INFOCOM'10 Proceedings of the 29th conference on Information communications
Towards software-friendly networks
Proceedings of the first ACM asia-pacific workshop on Workshop on systems
A detailed measurement of skype network traffic
IPTPS'08 Proceedings of the 7th international conference on Peer-to-peer systems
Statistical analysis and modeling of Skype VoIP flows
Computer Communications
Website fingerprinting and identification using ordered feature sequences
ESORICS'10 Proceedings of the 15th European conference on Research in computer security
Evaluation of bulk traffic mitigation practices in campus network
Proceedings of the Sixth Asian Internet Engineering Conference
Optimizing Deep Packet Inspection for High-Speed Traffic Analysis
Journal of Network and Systems Management
KISS: stochastic packet inspection classifier for UDP traffic
IEEE/ACM Transactions on Networking (TON)
Graption: A graph-based P2P traffic classification framework for the internet backbone
Computer Networks: The International Journal of Computer and Telecommunications Networking
Identifying skype traffic in a large-scale flow data repository
TMA'11 Proceedings of the Third international conference on Traffic monitoring and analysis
On traffic characteristics and user experience of Skype video call
Proceedings of the Nineteenth International Workshop on Quality of Service
Statistical analysis and modeling of peer-to-peer multimedia traffic
Network performance engineering
Inferring users' online activities through traffic analysis
Proceedings of the fourth ACM conference on Wireless network security
Gozar: NAT-friendly peer sampling with one-hop distributed NAT traversal
Proceedings of the 11th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
Session-based classification of internet applications in 3G wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Application Level Energy and Performance Measurements in a Wireless LAN
GREENCOM '11 Proceedings of the 2011 IEEE/ACM International Conference on Green Computing and Communications
Can Skype be used beyond video calling?
Proceedings of the 9th International Conference on Advances in Mobile Computing and Multimedia
Live traffic monitoring with tstat: capabilities and experiences
WWIC'10 Proceedings of the 8th international conference on Wired/Wireless Internet Communications
Uncovering the big players of the web
TMA'12 Proceedings of the 4th international conference on Traffic Monitoring and Analysis
Identifying skype nodes in the network exploiting mutual contacts
TMA'12 Proceedings of the 4th international conference on Traffic Monitoring and Analysis
Skype-Hunter: A real-time system for the detection and classification of Skype traffic
International Journal of Communication Systems
SkypeMorph: protocol obfuscation for Tor bridges
Proceedings of the 2012 ACM conference on Computer and communications security
Quality of experience management for video streams: the case of Skype
Proceedings of the 10th International Conference on Advances in Mobile Computing & Multimedia
High throughput and programmable online trafficclassifier on FPGA
Proceedings of the ACM/SIGDA international symposium on Field programmable gate arrays
Detection and classification of peer-to-peer traffic: A survey
ACM Computing Surveys (CSUR)
Proceedings of the 4th ACM Multimedia Systems Conference
Robust network traffic identification with unknown applications
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Network layer soft handoff for IP mobility
Proceedings of the 8th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
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Skype is a very popular VoIP software which has recently attracted the attention of the research community and network operators. Following a closed source and proprietary design, Skype protocols and algorithms are unknown. Moreover, strong encryption mechanisms are adopted by Skype, making it very difficult to even glimpse its presence from a traffic aggregate. In this paper, we propose a framework based on two complementary techniques to reveal Skypetraffic in real time. The first approach, based on Pearson'sChi-Square test and agnostic to VoIP-related trafficcharacteristics, is used to detect Skype's fingerprint from the packet framing structure, exploiting the randomness introduced at the bit level by the encryption process. Conversely, the second approach is based on a stochastic characterization of Skype traffic in terms of packet arrival rate and packet length, which are used as features of a decision process based on Naive Bayesian Classifiers.In order to assess the effectiveness of the above techniques, we develop an off-line cross-checking heuristic based on deep-packet inspection and flow correlation, which is interesting per se. This heuristic allows us to quantify the amount of false negatives and false positives gathered by means of the two proposed approaches: results obtained from measurements in different networks show that the technique is very effective in identifying Skype traffic. While both Bayesian classifier and packet inspection techniques are commonly used, the idea of leveraging on randomness to reveal traffic is novel. We adopt this to identify Skype traffic, but the same methodology can be applied to other classification problems as well.