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Add paragraph about the "Learn-The-Remaining-Information" attack 

[Imported from Trac: page Convergence Secret, version 4]
ClashTheBunny 2013-03-18 08:19:51 +00:00
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commit 7c06519bc4
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13
Convergence Secret.md

@ -22,8 +22,17 @@ would allow me to determine that you have uploaded a file to the grid.
This isn't a big deal for things that are personally produced, but is a
big deal for commonly known things that you want to keep secret that you
know about. Examples would be a Bible in China or The Anarchist's
Cookbook at the High School that I went to. Here's the details of the
origin of the convergence secret: `Convergence Secret Justification`_
Cookbook at the High School that I went to. This is called the
"Confirm-The-File" attack.
There is one more way that this can be used. Let's say that you know
somebody stores their W-2 (a US tax document) on their Tahoe-LAFS grid.
You can, with a little script, try various numbers for identity information
and eventually end up with your full identity and salary. This is called
the "Learn-The-Remaining-Information" attack.
Here's the details of the origin of the convergence secret:
`Convergence Secret Justification`_
.. _`Convergence Secret Justification`:
<https://tahoe-lafs.org/hacktahoelafs/drew_perttula.html>