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University of Cambridge
(274 results)-
White Papers
Security Across Disparate Management Domains in MANETs
July 31, 2008, 12:00am PDT
Creating a division between inter-domain and intra-domain routing is expected to assist in meeting the challenges of future MANET deployments in terms of heterogeneity and administrative...
Provided by University of Cambridge
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White Papers
A Location Prediction Algorithm for Directional Communication
June 16, 2008, 12:00am PDT
Directional antennas concentrate the transmitted power into a specified direction and form a directional beam pointing to a receiver. Directional communication can bring benefits in terms of power...
Provided by University of Cambridge
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White Papers
Volatile FPGA Design Security - A Survey
April 17, 2008, 12:00am PDT
Volatile FPGAs, the dominant type of programmable logic devices, are used in space, military, automotive, and consumer electronics applications which require them to operate in a wide range of...
Provided by University of Cambridge
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White Papers
Using Dust Clouds to Enhance Anonymous Communication
May 7, 2010, 12:00am PDT
Cloud computing platforms, such as Amazon EC2, enable customers to lease several Virtual Machines (VMs) on a per-hour basis. The customer can now obtain a dynamic and diverse collection of...
Provided by University of Cambridge
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White Papers
Possibility, Impossibility and Cheat-Sensitivity of Quantum Bit String Commitment
November 8, 2007, 12:00am PST
Unconditionally secure non-relativistic bit commitment is known to be impossible in both the classical and the quantum worlds. But when committing to a string of n bits at once, how far can they...
Provided by University of Cambridge
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White Papers
On Next-Generation Telco-Managed P2P TV Architectures
January 25, 2008, 12:00am PST
In recent years, Telcos worldwide have deployed IPTV networks to offer cable TV-like services over the IP backbones. Such walled garden IPTV networks are provisioned to guarantee the quality of...
Provided by University of Cambridge
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White Papers
Network Clustering Via Spectral Projections
May 9, 2011, 12:00am PDT
This paper proposes a novel non-parametric technique for clustering networks based on their structure. Many topological measures have been introduced in the literature to characterize topological...
Provided by University of Cambridge
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White Papers
Nomadic Pict: Programming Languages, Communication Infrastructure Overlays, and Semantics for Mobile Computation
February 3, 2010, 12:00am PST
Mobile computation, in which executing computations can move from one physical computing device to another, is a recurring theme: from OS process migration, to language-level mobility, to virtual...
Provided by University of Cambridge
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White Papers
Workload Characterization of the Specjms2007 Benchmark
July 23, 2007, 12:00am PDT
Message-Oriented Middleware (MOM) is at the core of a vast number of financial services and telco applications, and is gaining increasing traction in other industries, such as manufacturing,...
Provided by University of Cambridge
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White Papers
A Marriage of Rely/Guarantee and Separation Logic
June 14, 2007, 12:00am PDT
In the quest for tractable methods for reasoning about concurrent algorithms both rely/guarantee logic and separation logic have made great advances. They both seek to tame, or control, the...
Provided by University of Cambridge
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White Papers
Tracking Elephant Flows in Internet Backbone Traffic with an FPGA-Based Cache
June 10, 2009, 12:00am PDT
This paper presents an FPGA-friendly approach to tracking elephant flows in network traffic. The authors' approach, Single Step Segmented Least Recently Used (S3-LRU) policy, is a network...
Provided by University of Cambridge
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White Papers
GTVS: Boosting the Collection of Application Traffic Ground Truth
February 27, 2009, 12:00am PST
Interesting research in the areas of traffic classification, network monitoring, and application-oriented analysis can not proceed without real traffic traces, labeled with actual application...
Provided by University of Cambridge
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White Papers
Revisiting the Issues on Netflow Sample and Export Performance
June 1, 2008, 12:00am PDT
The high volume of packets and packet rates of traffic on some router links makes it exceedingly difficult for routers to examine every packet in order to keep detailed statistics about the...
Provided by University of Cambridge
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White Papers
Techniques for Flow Inversion on Sampled Data
March 27, 2008, 12:00am PDT
The distribution of flow sizes is a quantity of interest fundamental to traffic engineering and network modelling and only likely to become more important in the future. The recovery of the...
Provided by University of Cambridge
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White Papers
Efficient Application Identification and the Temporal and Spatial Stability of Classification Schema
October 16, 2008, 12:00am PDT
Motivated by the importance of accurate identification for a range of applications, this paper compares and contrasts the effective and efficient classification of network-based applications using...
Provided by University of Cambridge
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White Papers
Physical Layer Impact Upon Packet Errors
January 1, 2012, 12:00am PST
The authors postulate a future for optical networks where data is more susceptible to errors than has been the case to date. This paper builds upon a previous study that highlighted...
Provided by University of Cambridge
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White Papers
On the Security of Internet Banking in South Korea
March 6, 2010, 12:00am PST
South Korean Internet banking systems have a unique way of enforcing security controls. Users are obliged to install proprietary security software - typically an ActiveX plugin that implements a...
Provided by University of Cambridge
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White Papers
Identifying Social Communities in Complex Communications for Network Efficiency
December 29, 2008, 12:00am PST
Complex communication networks, more particular Mobile Ad Hoc NETworks (MANET) and Pocket Switched Networks (PSN), rely on short range radio and device mobility to transfer data across the...
Provided by University of Cambridge
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White Papers
Empirical Evaluation of Hybrid Opportunistic Networks
January 1, 2012, 12:00am PST
In this paper, the authors study the utility of opportunistic communication systems with the co-existence of network infrastructure using three real experimental deployments. They study how some...
Provided by University of Cambridge
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White Papers
Distributed Multicast Grouping for Publish/Subscribe Over Mobile Ad Hoc Networks
January 1, 2012, 12:00am PST
Event broker grids that deploy the publish/subscribe communication paradigm extend the capabilities of seamless messaging in heterogeneous network environments. In order to support such mixed...
Provided by University of Cambridge
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White Papers
Dynamic SLA-Based QoS Control for Third Generation Wireless Networks: The CADENUS Extension
November 8, 2007, 12:00am PST
With the evolution of QoS-capable third generation wireless networks, the wireless network community has been increasingly looking for a framework that can provide an effective, network...
Provided by University of Cambridge
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White Papers
Sensor Network Based Vehicle Classification and License Plate Identification System
April 20, 2009, 12:00am PDT
Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor...
Provided by University of Cambridge
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Whitepapers
Error and Attack Vulnerability of Temporal Networks
June 6, 2012, 12:00am PDT
The study of real-world communication systems via complex network models has greatly expanded the people understanding on how information flows, even in completely decentralized architectures such...
Provided by University of Cambridge
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Whitepapers
Measuring User Activity on an Online Location-Based Social Network
March 21, 2011, 12:00am PDT
While in recent years online social networks have been largely shaping user experience on the Web, only in the last year there has been a soaring increase of novel location-based social...
Provided by University of Cambridge
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Whitepapers
STOP: Socio-Temporal Opportunistic Patching of Short Range Mobile Malware
March 31, 2012, 12:00am PDT
Mobile phones are integral to everyday life with emails, social networking, online banking and other applications; however, the wealth of private information accessible increases economic...
Provided by University of Cambridge
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Whitepapers
On a Construction of Short Digests for Authenticating Ad Hoc Networks
July 10, 2009, 12:00am PDT
In pervasive ad-hoc networks, there is a need for devices to be able to communicate securely, despite the lack of apriori shared security associations and the absence of an infrastructure such as...
Provided by University of Cambridge
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Whitepapers
Measuring the Cost of Cybercrime
June 8, 2012, 12:00am PDT
In this paper, the authors present what they believe to be the first systematic study of the costs of cybercrime. It was prepared in response to a request from the UK Ministry of Defence following...
Provided by University of Cambridge
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Whitepapers
The Seven Deadly Sins of Cloud Computing Research
May 17, 2012, 12:00am PDT
Research into distributed parallelism on "The cloud" has surged lately. As the research agenda and methodology in this area are being established, the authors observe a tendency towards certain...
Provided by University of Cambridge
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Whitepapers
Crowd-Sourcing World Models With OpenRoomMap
January 26, 2010, 12:00am PST
The construction of world models typically requires laborious survey and cataloguing of a building's contents. OpenRoomMap attempts to crowd-source this information by allowing all building...
Provided by University of Cambridge
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Whitepapers
Free Lunch: Exploiting Renewable Energy for Computing
May 3, 2011, 12:00am PDT
This paper argues for "Free Lunch", a computation architecture that exploits otherwise wasted renewable energy by co-locating data-centres with these remote energy sources, connecting them over a...
Provided by University of Cambridge
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Whitepapers
CHERI: A Research Platform Deconflating Hardware Virtualization and Protection
February 8, 2012, 12:00am PST
Contemporary CPU architectures conflate virtualization and protection, imposing virtualization-related performance, programmability, and debuggability penalties on software requiring fine-grained...
Provided by University of Cambridge
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White Papers
Augmented Statistical Models for Speech Recognition
January 1, 2008, 12:00am PST
Recently there has been significant interest in developing new acoustic models for speech recognition. One such model, that allows complex dependencies to be represented, is the augmented...
Provided by University of Cambridge
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White Papers
Hermes: A Distributed Event-Based Middleware Architecture
January 1, 2008, 12:00am PST
This paper argues that there is a need for an event-based middleware to build large-scale distributed systems. Existing publish/subscribe systems still have limitations compared to...
Provided by University of Cambridge
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White Papers
A Theoretical Model for Location Privacy in Wireless Personal Area Networks
December 5, 2008, 12:00am PST
Location privacy is one of the major security problems in a Wireless Personal Area Network (WPAN). The use of temporary pseudonyms has been suggested by several authors to solve the problem. This...
Provided by University of Cambridge
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White Papers
Scripting the Cloud With Skywriting
May 27, 2010, 12:00am PDT
Recent distributed computing frameworks - such as MapReduce, Hadoop and Dryad - have made it simple to exploit multiple machines in a compute cloud. However, these frameworks use coordination...
Provided by University of Cambridge
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White Papers
Enforcing End-to-End Application Security in the Cloud
October 26, 2010, 12:00am PDT
Security engineering must be integrated with all stages of application specification and development to be effective. Doing this properly is increasingly critical as organisations rush to offload...
Provided by University of Cambridge
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White Papers
Xen 3.0 and the Art of Virtualization
December 12, 2010, 12:00am PST
The Xen Virtual Machine Monitor will soon be undergoing its third major release, and is maturing into a stable, secure, and full-featured virtualization solution for Linux and other operating...
Provided by University of Cambridge
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White Papers
Toward Natural Human-Robot Interaction: Exploring Facial Expression Synthesis on an Android Robot
July 15, 2009, 12:00am PDT
Robots are entering domestic environments in increasing number. However, the present means for interacting with them is quite limited and difficult for people who are not technically inclined or...
Provided by University of Cambridge
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White Papers
Steganographic Message Broadcasting Using Web Protocols
September 26, 2010, 12:00am PDT
The project involved creating a pair of programs that allow arbitrary files to be hidden in cover HTTP network traffic. The server and client are implemented as plugins to a web server and a web...
Provided by University of Cambridge
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White Papers
The Semantics of X86-CC Multiprocessor Machine Code
November 13, 2008, 12:00am PST
Multiprocessors are now dominant, but real multiprocessors do not provide the sequentially consistent memory that is assumed by most work on semantics and verification. Instead, they have subtle...
Provided by University of Cambridge
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White Papers
The Semantics of X86 Multiprocessor Machine Code Supplementary Examples
October 24, 2008, 12:00am PDT
This note contains supplementary details for the paper The Semantics of x86 Multiprocessor Machine Code [SSZN+09], with an informal-mathematics paper of the axiomatic memory model, and...
Provided by University of Cambridge
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White Papers
X86-TSO: A Rigorous and Usable Programmer's Model for X86 Multiprocessors
May 17, 2010, 12:00am PDT
Exploiting the multiprocessors that have recently become ubiquitous requires high-performance and reliable concurrent systems code, for concurrent data structures, operating system kernels,...
Provided by University of Cambridge
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White Papers
A Better X86 Memory Model: X86-TSO
June 4, 2009, 12:00am PDT
Real multiprocessors do not provide the sequentially consistent memory that is assumed by most work on semantics and verification. Instead, they have relaxed memory models, typically described in...
Provided by University of Cambridge
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White Papers
VOIP on Wireless LAN: A Comprehensive Review
February 29, 2008, 12:00am PST
VoIP requires timely servicing of the voice traffic, which is a challenging task in WLANs, even when using QoS enforcement. The use of Wireless LANs (WLANs) is more and more at present. Voice over...
Provided by University of Cambridge
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White Papers
Modelling Airline Network Routing and Scheduling Under Airport Capacity Constraints
July 2, 2008, 12:00am PDT
A flight routing and scheduling model is under development that predicts airline routing and scheduling under airport capacity constraints. It consists of several components describing different...
Provided by University of Cambridge
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White Papers
Internet Routing Policies and Round-Trip-Times
January 1, 2010, 12:00am PST
Round Trip Times (RTTs) play an important role in Internet measurements. In this paper, authors explore some of the ways in which routing policies impact RTTs. In particular, they investigate how...
Provided by University of Cambridge
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White Papers
The Marketability Of Bank Assets And Managerial Rents: Implications For Financial Stability
February 4, 2008, 12:00am PST
Financial innovation and greater information availability have increased the tradability of bank assets and reduced banks' dependence on individual bank managers as private information in the...
Provided by University of Cambridge
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White Papers
Learning the Switching Rate by Discretising Bernoulli Sources Online Phishing Pages
April 18, 2009, 12:00am PDT
The expert tracking algorithm Fixed-Share depends on a parameter, called the switching rate. The switching rate can be learned online with regret 1 2 log T + O(1) bits. The current fastest method...
Provided by University of Cambridge
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White Papers
Live Migration of Virtual Machines
January 1, 2010, 12:00am PST
In this paper the design options for migrating OSes running services with liveness constraints, focusing on data center and cluster environments are considered. The paper introduces and analyzes...
Provided by University of Cambridge
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White Papers
Jones Optimality and Hardware Virtualization: A Report on Work in Progress
December 2, 2007, 12:00am PST
The growing popularity of hardware virtualization (VMware and Xen being two prominent implementations) lead to examine the common ground between this yet-again vibrant technology and partial...
Provided by University of Cambridge
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White Papers
An Analysis of Hard Drive Energy Consumption
October 24, 2008, 12:00am PDT
The increasing storage capacity and necessary redundancy of data centers and other large-scale IT facilities has drawn attention to the issue of reducing the power consumption of hard drives. This...
Provided by University of Cambridge
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White Papers
Resource Provisioning for Virtualized Server Applications
November 1, 2009, 12:00am PDT
Data centre virtualization creates an agile environment for application deployment. Applications run within one or more virtual machines and are hosted on various servers throughout the data...
Provided by University of Cambridge
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White Papers
Understanding Scam Victims: Seven Principles for Systems Security
August 1, 2009, 12:00am PDT
The success of many attacks on computer systems can be traced back to the security engineers not understanding the psychology of the system users they meant to protect. The paper examines a...
Provided by University of Cambridge
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White Papers
TDMA for Long Distance Wireless Networks
September 21, 2009, 12:00am PDT
Off late the UC Berkeley TIER Project studied the need to deploy network infrastructure to emerging regions. Their goal was to "Address the challenges in bringing the Information Technology...
Provided by University of Cambridge
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White Papers
Securing Peer-to-Peer Content Sharing Service From Poisoning Attacks
June 20, 2008, 12:00am PDT
Poisoning attacks in the Peer-to-Peer (P2P) content sharing service have become a serious security problem on the global Internet due to the features of P2P systems such as self-organization,...
Provided by University of Cambridge
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White Papers
Practical Experiences With Wireless Integration Using Mobile IPv6
January 1, 2009, 12:00am PST
World over, mobile Internet access has shown strong growth, fuelled by the increasing popularity of WiFi (802.11b-based WLANs), and the world-wide deployment of wide-area wireless networks such as...
Provided by University of Cambridge
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White Papers
Traffic Analysis of the HTTP Protocol Over TLS
January 1, 2009, 12:00am PST
The paper analyzes attacks that take advantage of the data length information leaked by HTTP transactions over the TLS protocol, in order to link clients with particular resources they might...
Provided by University of Cambridge
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White Papers
Security Economics and European Policy
June 23, 2008, 12:00am PDT
As Europe moves online, information security is becoming increasingly important: first, because the direct and indirect losses are now economically significant; and second, because growing public...
Provided by University of Cambridge
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White Papers
Stopping Spam by Extrusion Detection
January 1, 2009, 12:00am PST
End users are often unaware that their systems have been compromised and are being used to send bulk unsolicited email (spam). This paper shows how automated processing of the email logs recorded...
Provided by University of Cambridge
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White Papers
The Snooping Dragon: Social-Malware Surveillance of the Tibetan Movement
March 1, 2009, 12:00am PST
This paper says about a case of malware-based electronic surveillance of a political organisation by the agents of a nation state. While malware attacks are not new, two aspects of this case make...
Provided by University of Cambridge
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White Papers
Cooperative Attack and Defense in Distributed Networks
June 1, 2008, 12:00am PDT
Computer networks are becoming increasingly decentralized. No single entity controls the entire system; therefore, no entity can compel compliance. Peer-to-peer file sharing systems connect users...
Provided by University of Cambridge
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White Papers
Understanding Victims: Six Principles for Systems Security
June 11, 2009, 12:00am PDT
The success of many attacks on computer systems can be traced back to the security engineers not understanding the psychology of the system users they meant to protect. It examined a variety of...
Provided by University of Cambridge
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White Papers
A Theoretical Model for Location Privacy in Wireless Personal Area Networks
December 5, 2008, 12:00am PST
Location privacy is one of the major security problems in a Wireless Personal Area Network (WPAN). The use of temporary pseudonyms has been suggested by several authors to solve the problem. This...
Provided by University of Cambridge
-
White Papers
Hermes: A Distributed Event-Based Middleware Architecture
January 1, 2008, 12:00am PST
This paper argues that there is a need for an event-based middleware to build large-scale distributed systems. Existing publish/subscribe systems still have limitations compared to...
Provided by University of Cambridge
-
White Papers
Augmented Statistical Models for Speech Recognition
January 1, 2008, 12:00am PST
Recently there has been significant interest in developing new acoustic models for speech recognition. One such model, that allows complex dependencies to be represented, is the augmented...
Provided by University of Cambridge
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White Papers
Policy-Controlled Event Management for Distributed Intrusion Detection
January 1, 2008, 12:00am PST
A powerful strategy in intrusion detection is the separation of surveillance mechanisms from a site's policy for processing observed events. The Bro intrusion detection system has been using the...
Provided by University of Cambridge
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White Papers
Honeycomb - Creating Intrusion Detection Signatures Using Honeypots
January 1, 2008, 12:00am PST
This paper describes a system for automated generation of attack signatures for network intrusion detection systems. The system applies pattern-matching techniques and protocol conformance checks...
Provided by University of Cambridge
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White Papers
Architecture of a Network Monitor
December 1, 2007, 12:00am PST
This paper describes a system for simultaneously monitoring multiple protocols. It performs full line-rate capture and implements on-line analysis and compression to record interesting data...
Provided by University of Cambridge
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