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This is the '''Forensics Wiki''', a [http://creativecommons.org/licenses/by-sa/2.5/ Creative Commons]-licensed [http://en.wikipedia.org/wiki/Wiki wiki] devoted to information about [[digital forensics]] (also known as computer forensics). We currently list a total of [[Special:Allpages|{{NUMBEROFARTICLES}}]] pages.
 
This is the '''Forensics Wiki''', a [http://creativecommons.org/licenses/by-sa/2.5/ Creative Commons]-licensed [http://en.wikipedia.org/wiki/Wiki wiki] devoted to information about [[digital forensics]] (also known as computer forensics). We currently list a total of [[Special:Allpages|{{NUMBEROFARTICLES}}]] pages.
 
    
 
    
Much of [[computer forensics]] is focused on the [[tools]] and [[techniques]] used by [[investigator]]s, but there are also a number of important [[papers]], [[people]], and [[organizations]] involved. Many of those organizations sponsor [[conferences]] throughout the year and around the world. You may also wish to examine the popular [[journals]] and some special [[reports]].
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Much of [[computer forensics]] is focused on the [[tools]] and [[techniques]] used by [[investigator]]s, but there are also a number of important [[papers]], [[people]], and [[organizations]] involved. Many of those organizations sponsor [[Upcoming_events|conferences]] throughout the year and around the world. You may also wish to examine the popular [[journals]] and some special [[reports]].
 
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<b>WIKI MAINTENANCE NOTE: We have re-installed mediawiki. New anti-spam measures and account re-confirmation software is in effect. Please let us know if you have problems on the [[Contact Form]]</b>
 
  
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==WIKI NEWS==
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2013-MAR-18: We have moved to a new server on hostgator and upgraded the mediawiki installation. All accounts and images have been restored from backups. There may be some hiccups, but it seems to be working.
  
 
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<h2 style="margin:0; background-color:#ffff33; font-size:120%; font-weight:bold; border:1px solid #afa3bf; text-align:left; color:#000; padding-left:0.4em; padding-top:0.2em; padding-bottom:0.2em;"> Featured Forensic Research </h2>
 
<h2 style="margin:0; background-color:#ffff33; font-size:120%; font-weight:bold; border:1px solid #afa3bf; text-align:left; color:#000; padding-left:0.4em; padding-top:0.2em; padding-bottom:0.2em;"> Featured Forensic Research </h2>
  
<small>Dec 2011</small>
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<small>Jan 2013</small>
 
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<bibtex>
 
<bibtex>
@INPROCEEDINGS{5931110,  
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@article{young:distinct,
author={Baier, H. and Breitinger, F.},  
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title="Distinct Sector hashing for Target Detection",
booktitle={IT Security Incident Management and IT Forensics (IMF), 2011 Sixth International Conference on},
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author="Joel Young and Kristina Foster and Simson Garfinkel and Kevin Fairbanks",
title={Security Aspects of Piecewise Hashing in Computer Forensics},  
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year=2012,
year={2011},  
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month=Dec,
month={may},
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journal="IEEE Computer"
volume={},
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}
number={},
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pages={21 -36},
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keywords={MD5 hash function;SHA-1 hash function;computer forensics;cryptographic hash function;piecewise hashing security aspect;pseudorandom number generator;security analysis;computer forensics;cryptography;random number generation;},
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doi={10.1109/IMF.2011.16},  
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abstract="Although hash functions are a well-known method in computer science to map arbitrary large data to bit strings of a fixed length, their use in computer forensics is currently very limited. As of today, in a pre-step process hash values of files are generated and stored in a database, typically a cryptographic hash function like MD5 or SHA-1 is used. Later the investigator computes hash values of files, which he finds on a storage medium, and performs look ups in his database. This approach has several drawbacks, which have been sketched in the community, and some alternative approaches have been proposed. The most popular one is due to Jesse Kornblum, who transferred ideas from spam detection to computer forensics in order to identify similar files. However, his proposal lacks a thorough security analysis. It is therefore one aim of the paper at hand to present some possible attack vectors of an active adversary to bypass Kornblum's approach. Furthermore, we present a pseudo random number generator being both more efficient and more random compared to Kornblum's pseudo random number generator."
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ISSN={},}
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</bibtex>
 
</bibtex>
Although hash functions are a well-known method in computer science to map arbitrary large data to bit strings of a fixed length, their use in computer forensics is currently very limited. As of today, in a pre-step process hash values of files are generated and stored in a database, typically a cryptographic hash function like MD5 or SHA-1 is used. Later the investigator computes hash values of files, which he finds on a storage medium, and performs look ups in his database. This approach has several drawbacks, which have been sketched in the community, and some alternative approaches have been proposed. The most popular one is due to Jesse Kornblum, who transferred ideas from spam detection to computer forensics in order to identify similar files. However, his proposal lacks a thorough security analysis. It is therefore one aim of the paper at hand to present some possible attack vectors of an active adversary to bypass Kornblum's approach. Furthermore, we present a pseudo random number generator being both more efficient and more random compared to Kornblum's pseudo random number generator.
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Using an alternative approach to traditional file hashing, digital forensic investigators can hash individually sampled subject drives on sector boundaries and then check these hashes against a prebuilt database, making it possible to process raw media without reference to the underlying file system.
  
 
(See also [[Past Selected Articles]])
 
(See also [[Past Selected Articles]])

Revision as of 06:17, 19 March 2013

This is the Forensics Wiki, a Creative Commons-licensed wiki devoted to information about digital forensics (also known as computer forensics). We currently list a total of 686 pages.

Much of computer forensics is focused on the tools and techniques used by investigators, but there are also a number of important papers, people, and organizations involved. Many of those organizations sponsor conferences throughout the year and around the world. You may also wish to examine the popular journals and some special reports.


WIKI NEWS

2013-MAR-18: We have moved to a new server on hostgator and upgraded the mediawiki installation. All accounts and images have been restored from backups. There may be some hiccups, but it seems to be working.

Featured Forensic Research

Jan 2013

Joel Young, Kristina Foster, Simson Garfinkel, Kevin Fairbanks - Distinct Sector hashing for Target Detection
IEEE Computer , December 2012
Bibtex
Author : Joel Young, Kristina Foster, Simson Garfinkel, Kevin Fairbanks
Title : Distinct Sector hashing for Target Detection
In : IEEE Computer -
Address :
Date : December 2012

Using an alternative approach to traditional file hashing, digital forensic investigators can hash individually sampled subject drives on sector boundaries and then check these hashes against a prebuilt database, making it possible to process raw media without reference to the underlying file system.

(See also Past Selected Articles)

Featured Article

Forensic Linux Live CD issues
Forensic Linux Live CD distributions are widely used during computer forensic investigations. Currently, many vendors of such Live CD distributions state that their Linux do not modify the contents of hard drives or employ "write protection." Testing indicates that this may not always be the case. Read More...


Topics



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