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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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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 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 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 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 Cookbook at the High School that I went to. This is called the
origin of the convergence secret: `Convergence Secret Justification`_ "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`: .. _`Convergence Secret Justification`:
<https://tahoe-lafs.org/hacktahoelafs/drew_perttula.html> <https://tahoe-lafs.org/hacktahoelafs/drew_perttula.html>