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Files from James Fell

Real NameJames Fell
Email addressjames.fell at alumni.york.ac.uk
First Active2003-02-24
Last Active2017-05-10
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Side Channel Attack Countermeasures In Cryptographic Systems
Posted May 10, 2017
Authored by James Fell

Side channel attacks against cryptographic systems involve identifying ways in which their physical implementations leak useful information. A cryptographic algorithm may be secure on paper but when implemented on physical hardware some of the secret data, such as key bits, may potentially be recovered by an attacker by measuring various physical properties whilst encryption or decryption is being performed. This essay reviews the most successful countermeasures that can be used to make different classes of side channel attacks as difficult as possible. An understanding of basic principles of cryptography is assumed.

tags | paper
MD5 | cac393efbdd310e9a2ca73805bcb9ebd
A Review Of Fuzzing Tools And Methods
Posted Apr 8, 2017
Authored by James Fell

This paper reviews fuzzing and its context within the field of information security research. We firstly examine how vulnerabilities come to exist in software and how security researchers find them. After a brief overview of common vulnerability types and methods of static analysis, we look in more depth at the field of fuzzing. Competing approaches to fuzzing are examined, from simple random inputs all the way to using genetic algorithms and taint analysis. The importance of measuring code coverage to evaluate the completeness of a fuzzing campaign is examined. Finally, previous work on fuzz testing of web browsers is reviewed.

tags | paper, web, vulnerability
MD5 | 05ec78341cba442fad300cb679ddfbf5
An Overview Of Some Popular Network Anonymity Systems
Posted Jan 25, 2017
Authored by James Fell

This essay takes a look at a selection of network anonymity systems including VPNs, Tor, Freenet and I2P. The different systems are explained and then compared and contrasted with each other. A number of issues are considered for each system including ease of use, popularity, strength of anonymity provided, and potential attacks on the system.

tags | paper
MD5 | edf4b50c5f22ff22e631de9cd3c9e745
kaletonidspaper.pdf
Posted Feb 24, 2003
Authored by James Fell | Site kaleton.com

This paper investigates combining Misuse and Anomaly based IDS into one system. Misuse detection consists of defining malicious network traffic and monitoring for it. Anomaly detection consists of defining normal or typical network traffic and then detecting anything else. The perl source code for a prototype NIDS is included (requires TCPDump).

tags | paper, perl
MD5 | 7f513964d282d00479d3dc881b750de7
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