https://coptr.digipres.org/index.php?title=Crazy-fast-image-scan&feed=atom&action=history
Crazy-fast-image-scan - Revision history
2024-03-28T19:40:45Z
Revision history for this page on the wiki
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https://coptr.digipres.org/index.php?title=Crazy-fast-image-scan&diff=5032&oldid=prev
Prwheatley at 11:35, 8 June 2021
2021-06-08T11:35:15Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:35, 8 June 2021</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Infobox tool</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Infobox tool</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|purpose=<del class="diffchange diffchange-inline">crazy-fast-image-scan is a </del>script to scan media very quickly to find out what kind of content it contains</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|purpose=<ins class="diffchange diffchange-inline">A </ins>script to scan media very quickly to find out what kind of content it contains</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|homepage=https://metacpan.org/pod/distribution/File-FormatIdentification-RandomSampling/bin/crazy_fast_image_scan.pl</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|homepage=https://metacpan.org/pod/distribution/File-FormatIdentification-RandomSampling/bin/crazy_fast_image_scan.pl</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|license=GNU General Public License 3.0</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|license=GNU General Public License 3.0</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|function=File Format Identification</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|function=File Format Identification<ins class="diffchange diffchange-inline">, Content Profiling, Forensic</ins></div></td></tr>
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Prwheatley
https://coptr.digipres.org/index.php?title=Crazy-fast-image-scan&diff=5027&oldid=prev
Andreas Romeyke: file format identification tool for media images
2021-05-27T08:40:50Z
<p>file format identification tool for media images</p>
<p><b>New page</b></p><div>{{Infobox tool<br />
|purpose=crazy-fast-image-scan is a script to scan media very quickly to find out what kind of content it contains<br />
|homepage=https://metacpan.org/pod/distribution/File-FormatIdentification-RandomSampling/bin/crazy_fast_image_scan.pl<br />
|license=GNU General Public License 3.0<br />
|function=File Format Identification<br />
}}<br />
{{Infobox tool details}}<br />
<br />
== Usage ==<br />
<code><br />
perl ./crazy_fast_image_scan.pl --image=/dev/sda<br />
</code><br />
<br />
This scans the device /dev/sda.<br />
<br />
<code><br />
perl ./crazy_fast_image_scan.pl --percent=0.00001 --image=cdrom.img<br />
</code><br />
<br />
This scans the image using 0.00001 (0.001 %) bytes of the image.<br />
<br />
== Description ==<br />
<br />
This script scans devices or images very fast using random sampling and reports what kind of content could be found. This is useful to decide which image or media could have stuff of interest and allows to prioritize the order of further examinations.<br />
<br />
The script uses random sampling and is based on ideas by Simson Garfinkel in a talk http://simson.net/ref/2014/2014-02-21_RPI_Forensics_Innovation.pdf<br />
<br />
It calculates the sectors of a given image or device, select n sector samples, seek to the sector positions and read it.</div>
Andreas Romeyke