Difference between pages "Tools:Data Recovery" and "Context Triggered Piecewise Hashing"

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Based on the work of Dr. Andrew Tridgell, Context Triggered Piecewise Hashing, aka Fuzzy Hashing, can match inputs that have many homologies. This means that the inputs have large sequences of bytes that are identical and in the same order. This technique was originally published at the [[DFRWS]] conference in 2006 in a paper [http://dfrws.org/2006/proceedings/12-Kornblum.pdf |Identifying Almost Identical Files Using Context Triggered Piecewise Hashing].
  
= Partition Recovery =
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== Implementations ==
  
; [[Partition Table Doctor]]
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CTPH has been implemented in the program [[ssdeep]].
: http://www.ptdd.com/index.htm
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; [[parted]]
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: The Linux partition management tool.
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; [[Active Partition Recovery]]
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: ...
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; [[gpart]]
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: http://www.stud.uni-hannover.de/user/76201/gpart/
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; [[Testdisk]]
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: http://www.cgsecurity.org/wiki/TestDisk
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== See Also ==
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* [http://support.microsoft.com/?kbid=166997 Using Norton Disk Edit to Backup Your Master Boot Record]
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== Notes ==
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* "fdisk /mbr" restores the boot code in the [[MBR]], but not the partition itself.
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= Data Recovery =
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; [[BringBack]]
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: http://www.toolsthatwork.com/
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: BringBack offers easy to use, inexpensive, and highly successful data recovery for Windows and Linux (ext2) operating systems and digital images stored on memory cards, etc.
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; [[ByteBack Data Recovery Investigative Suite v4.0]]
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: http://www.toolsthatwork.com
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: Now with UDMA, ATA & SATA support, memory management and greater ease and control of partition and MBR manipulations, ByteBack continues to uphold it's viability as the computer forensics and recovery application of professionals.
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; [[RAID Reconstructor]]
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: http://www.runtime.org/raid.htm
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: Runtime Software's RAID Reconstructor will reconstruct [[RAID Level 0]] (Striping) and [[RAID Level 5]] drives.
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; [[Salvation Data]]
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: http://www.salvationdata.com
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: Claims to have a program that can read the "[[bad blocks]]" of [[Maxtor]] drives with proprietary commands.
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=Carving=
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; [[DataLifter DataLifter® - File Extractor Pro]]
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: http://www.datalifter.com/products.htm
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; [[Foremost]]
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: http://foremost.sourceforge.net/
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Foremost is a console program to recover files based on their headers, footers, and internal data structures.
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; [[Scalpel]]
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: http://www.digitalforensicssolutions.com/Scalpel/
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Scalpel is a fast file carver that reads a database of header and footer definitions and extracts matching files from a set of image files or raw device files. Scalpel is filesystem-independent and will carve files from FATx, NTFS, ext2/3, or raw partitions.
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; [[EnCase]]
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: EnCase comes with some eScripts that will do carving.
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; CarvFs
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A virtual filesystem (fuse) implementation that can provide carving tools
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with the posibility to do recursive multi tool zero-storage carving
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(also called in-place carving). Patches and scripts for scalpel and
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foremost are provided. Works on raw and encase images.
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: http://ocfa.sourceforge.net/libcarvpath/
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; LibCarvPath
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: http://ocfa.sourceforge.net/libcarvpath/
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A shared library that allows carving tools to use zero-storage carving on
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carvfs virtual files.
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; PhotoRec
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: http://www.cgsecurity.org/wiki/PhotoRec
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PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from Hard Disks and CDRom and lost pictures (thus, its 'Photo Recovery' name) from digital camera memory.
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; RevIt
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: https://www.uitwisselplatform.nl/projects/revit
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RevIt (Revive It) is an experimental carving tool, initially developed for the DFRWS 2006 carving challenge.
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It uses 'file structure based carving'. Note that RevIt currently is a work in progress.
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Revision as of 12:04, 24 February 2007

Based on the work of Dr. Andrew Tridgell, Context Triggered Piecewise Hashing, aka Fuzzy Hashing, can match inputs that have many homologies. This means that the inputs have large sequences of bytes that are identical and in the same order. This technique was originally published at the DFRWS conference in 2006 in a paper |Identifying Almost Identical Files Using Context Triggered Piecewise Hashing.

Implementations

CTPH has been implemented in the program ssdeep.