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Identifier 000337099
Title Anontool : per application field anonymization to promote network data sharing
Alternative Title Διατήρηση Ανωνυμίας Ανά Πεδίο που Προάγει τη Διανομή Δεδομένων Δικτύου
Author Φουκαράκης, Μιχαήλ Ιωάννη
Thesis advisor Μαρκάτος, Ευάγγελος
Abstract As computer networks grow in size and complexity, the need for distributed network management and monitoring becomes increasingly important. Net- work data is the single most valuable resource available to network analysts and security professionals, yet organizations and researchers are still reluctant to share data with third parties. As a result, there is a lack of realistic network traces for research studies and prototype testing and poor cooperation in network defense.
To alleviate this problem and limit sensitive information leakage, anonymization is often applied to network data prior to being publicized. Anonymization aims to obfuscate data to protect the privacy of monitored subjects, while preserving useful information about the data. Today’s approaches in this field are software utilities or ad-hoc solutions which offer limited flexibility or performance.
Our proposal is Anontool , an application which aims to provide a flex- ible and efficient solution to deal with anonymization on every layer of a network packet. Anontool uses the Anonymization API (AAPI) and extends it to support the popular NetFlow and IPFIX protocols. We also developed two new anonymization primitives to address attacks against the anonymized traces’ privacy. Furthermore, we have implemented a way to find and anonymize sensitive information within binary packet payloads, in particular malicious executable payloads. Our evaluation shows Anontool is one of the most flexible and powerful tools currently available, and our experimental results suggest that Anontool outperforms tools with similar functionality and is on par with specialized tools.
Physical description xviii, 73 σ. : εικ. ; 30 cm.
Language English
Issue date 2008-12-04
Collection   Faculty/Department--Faculty of Sciences and Engineering--Department of Computer Science--Post-graduate theses
  Type of Work--Post-graduate theses
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