Difference between pages "Slack" and "JTAG Forensics"

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== Definition ==
 
== Definition ==
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=== From Wikipedia ([http://en.wikipedia.org/wiki/Joint_Test_Action_Group http://en.wikipedia.org/wiki/Joint_Test_Action_Group ]): ===
  
In [[computer forensics]] '''slack''' refers to the bytes after the logical end of a file and the end of the cluster wherein the final byte of the valid file resides.
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Joint Test Action Group (JTAG) is the common name for what was later standardized as the IEEE 1149.1 Standard Test Access Port and Boundary-Scan Architecture. It was initially devised for testing printed circuit boards using boundary scan and is still widely used for this application. Today JTAG is also widely used for IC debug ports. In the embedded processor market, essentially all modern processors support JTAG when they have enough pins. Embedded systems development relies on debuggers talking to chips with JTAG to perform operations like single stepping and breakpointing. Digital electronics products such as cell phones or a wireless access point generally have no other debug or test interfaces.
  
== File Slack Types ==
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=== Forensic Application ===
  
=== RAM Slack ===
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JTAG forensics is an acquisition procedure which involves connecting to the Standard Test Access Port (TAPs) on a device and instructing the processor to transfer the raw data stored on connected memory chips. Jtagging supported phones can be an extremely effective technique to extract a full physical image from devices that cannot be acquired by other means.
  
The data storage space that exists from the end of a file to the end of the last sector assigned to a file.
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== Procedures ==
  
=== Drive Slack ===
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* [[JTAG Samsung Galaxy S4 (SGH-I337)]]
 
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The data storage space that exists from the end of the last sector assigned to a file to the end of the last cluster assigned to a file.
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== See Also ==
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* [[FAT#File_Slack]]
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== External Links ==
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* http://www.forensics-intl.com/def6.html
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Revision as of 11:38, 6 August 2013

Definition

From Wikipedia (http://en.wikipedia.org/wiki/Joint_Test_Action_Group ):

Joint Test Action Group (JTAG) is the common name for what was later standardized as the IEEE 1149.1 Standard Test Access Port and Boundary-Scan Architecture. It was initially devised for testing printed circuit boards using boundary scan and is still widely used for this application. Today JTAG is also widely used for IC debug ports. In the embedded processor market, essentially all modern processors support JTAG when they have enough pins. Embedded systems development relies on debuggers talking to chips with JTAG to perform operations like single stepping and breakpointing. Digital electronics products such as cell phones or a wireless access point generally have no other debug or test interfaces.

Forensic Application

JTAG forensics is an acquisition procedure which involves connecting to the Standard Test Access Port (TAPs) on a device and instructing the processor to transfer the raw data stored on connected memory chips. Jtagging supported phones can be an extremely effective technique to extract a full physical image from devices that cannot be acquired by other means.

Procedures