CSC 379 SUM2008:Week 4, Group 4: Difference between revisions
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_working on this section_ --[[User:Jcsmith2|Jcsmith2]] 20:20, 1 August 2008 (EDT) | _working on this section_ --[[User:Jcsmith2|Jcsmith2]] 20:20, 1 August 2008 (EDT) | ||
Encoding data in the form a machine-readable printed graph is not new | |||
Encoding data in the form a machine-readable printed graph is not a new idea—adhering printed barcodes to physical objects for tracking purposes has been a commercial practice since 1966, and a ubiquitous commercial tool since the 1980s. [http://en.wikipedia.org/wiki/Barcode#History] | |||
* Currently found only in ''some'' laser printers. (highlight EFF's list of affected printers) | * Currently found only in ''some'' laser printers. (highlight EFF's list of affected printers) | ||
Revision as of 00:28, 2 August 2008
What if every page you print from a color printer were labeled with a hidden code, detailing the printer the page was printed from, the date of printing and the time of printing, down to the minute? What if this feature was intentionally hidden from the user and could not be disabled? What if the code could be viewed and decoded by anyone, not just law enforcement? These hidden tracking codes exist – examine the ethical considerations they pose. Should users be informed of the feature? Should users be able to disable the feature? Develop ethical arguments for both positions.
Printer Tracking Technology
How does it work?
_working on this section_ --Jcsmith2 20:20, 1 August 2008 (EDT)
Encoding data in the form a machine-readable printed graph is not a new idea—adhering printed barcodes to physical objects for tracking purposes has been a commercial practice since 1966, and a ubiquitous commercial tool since the 1980s. [1]
- Currently found only in some laser printers. (highlight EFF's list of affected printers)
How it works. (This section should have a picture/diagram example of how tracking dots can be used to encode information)
Why Is It Useful?
<Work in Progress>
- Currently, the only official use of the hidden tracking dots by our government is their role in tracking down Counterfeiters. These criminals often employ the technique of scanning legal currency, then by using a color laser printer or color laser copier, they are able to mass-produce the counterfeit bills that are of a high enough quality that they will fool most people. By using the hidden tracking codes, law-enforcement officials, specifically the Secret Service, are able to determine the brand and model number of the printer that produced the counterfeit bills as well as finding the specific serial number of the offending machine. They are then able to use that information to contact the manufacturer of the printer to gain determine who purchased that specific device.
- This practice is not limited the the United States government as the governments of other countries concerned with the circulation of counterfeit currency also employ the same techniques used by the Secret Service.