Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Redacting with Confidence - NSA How to Sanitize PDF's.
Federation of American Scientists ^ | 12/13/2005 | National Security Agency

Posted on 01/22/2006 10:43:21 PM PST by Loud Mime

This is a PDF document.

"Abstract

There are a number of pitfalls for the person attempting to sanitize a Word document for release. This paper describes the issue, and gives a step-by-step description of how to do it with confidence that inappropriate material will not be released."

Read the rest at the site.

(Excerpt) Read more at fas.org ...


TOPICS: Government
KEYWORDS: nsa; sanitize
Yeppers, they don't want the citizens to know anything without the New York Time's or Kofi Annan's approval.
1 posted on 01/22/2006 10:43:23 PM PST by Loud Mime
[ Post Reply | Private Reply | View Replies]

To: radioproducer; pissant; saveliberty

ping


2 posted on 01/22/2006 10:44:25 PM PST by Loud Mime (Republicans protect Americans from terrorists, Democrats protect terrorists from Americans)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Loud Mime

Saving it as Rich Text File and bringing it back up in Word should suffice in most cases.


3 posted on 01/22/2006 10:50:54 PM PST by HiTech RedNeck
[ Post Reply | Private Reply | To 1 | View Replies]

To: Loud Mime

I don't see what is so wrong. The DoD frequently deals with confidential information, and some of the techniques used to sanitize documents for hardcopy release do not work for electronic release. The document describes how to delete text and reformat pages, and how to export a Word document to PDF so that metadata comments are not carried over. Basically, this is an idiot's guide on how to not do something stupid.


4 posted on 01/22/2006 10:53:17 PM PST by psychoknk
[ Post Reply | Private Reply | To 1 | View Replies]

To: Loud Mime

I say leave it in Times New Roman, all the default settings, etc, then just fax a printout of it to CBS. Usually works, and it becomes indistinguishable from a 30 year old typewritten memo.


5 posted on 01/22/2006 11:03:35 PM PST by Third Order
[ Post Reply | Private Reply | To 1 | View Replies]

To: psychoknk

There's nothing WRONG with these instructions. I'm just miffed at the Barret report's missing so much data.


6 posted on 01/22/2006 11:05:22 PM PST by Loud Mime (Republicans protect Americans from terrorists, Democrats protect terrorists from Americans)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Loud Mime

Instructions like this are vital in business, too. I worked for a large networking hardware company (which shall remain nameless) and I recall spreadsheets developed for customers which had summary graphs. If you clicked on the summary graph, however, you would be led to complex pricing and technical analysis that should have never been let out of the company. This is a serious issue that is a serious conduit for the release of classified information no matter who you work for.


7 posted on 01/22/2006 11:09:56 PM PST by ProtectOurFreedom
[ Post Reply | Private Reply | To 1 | View Replies]

To: Loud Mime

That's certainly the complicated way to accomplish a simple task.

1. Step one - edit and redact document.

2. Step two - print out the redacted document.

3. Step three - scan in redacted document, in PDF if your scanner supports that (if not, use the image type of your choice, and then plug the page sized images into a new document.)

4. If it isn't already in PDF format, convert it and email it. (Note, if you use Open Offie instead of Microsoft Offie, conversion is much simpler.)

All of the metadocument info is gone, and the file you are sending doesn't have text that can be uncovered or graphics that can be enlarged.


8 posted on 01/22/2006 11:18:52 PM PST by PAR35
[ Post Reply | Private Reply | To 1 | View Replies]

To: ProtectOurFreedom

See post 8.


9 posted on 01/22/2006 11:19:53 PM PST by PAR35
[ Post Reply | Private Reply | To 7 | View Replies]

To: Dark Wing; Dog Gone

industrial strength PING!


10 posted on 01/22/2006 11:33:22 PM PST by Thud
[ Post Reply | Private Reply | To 1 | View Replies]

To: Third Order
I say leave it in Times New Roman, all the default settings, etc, then just fax a printout of it to CBS. Usually works, and it becomes indistinguishable from a 30 year old typewritten memo.

Printing a document in Times New Roman and then redacting it with ink does not do a good job of obscuring information. Consider the following:

According to Joseph Quimby we should do something.
If the name was adequately whited out before copying, it won't be visible at all. But suppose one has a list of plausible names. Plug them in and check the alignment.
to James Johnson we should
to Joseph Quimby we should
to Robert Baldwin we should
to Mark Johanson we should
to Joseph Quimby we should
to Joseph Quimby we should
Only the last line exactly matches the letter width of the mystery text (Mark Johanson comes very close). While I understand that proportional spacing does offer some legibility and space advantages over Courier, it would have been better for security to design a font with a fairly small number of letter widths (like the ones used on IBM Executive typewriters). This would still offer the improved legibility but much lower "resolution" on letter spacing.
11 posted on 01/22/2006 11:47:29 PM PST by supercat (Sony delenda est.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: supercat

If the reader has a list of names that are likely candidates, this would be an issue.


12 posted on 01/22/2006 11:53:11 PM PST by HiTech RedNeck
[ Post Reply | Private Reply | To 11 | View Replies]

To: PAR35

I'm learning a lot from these comments. Luckily, I don't have to redact material in my work. The photos I take or what I write is good for everybody.


13 posted on 01/23/2006 6:07:05 AM PST by Loud Mime (Republicans protect Americans from terrorists, Democrats protect terrorists from Americans)
[ Post Reply | Private Reply | To 8 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson