Add paragraph about the "Learn-The-Remaining-Information" attack
[Imported from Trac: page Convergence Secret, version 4]
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@ -22,8 +22,17 @@ would allow me to determine that you have uploaded a file to the grid.
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This isn't a big deal for things that are personally produced, but is a
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big deal for commonly known things that you want to keep secret that you
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know about. Examples would be a Bible in China or The Anarchist's
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Cookbook at the High School that I went to. Here's the details of the
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origin of the convergence secret: `Convergence Secret Justification`_
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Cookbook at the High School that I went to. This is called the
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"Confirm-The-File" attack.
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There is one more way that this can be used. Let's say that you know
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somebody stores their W-2 (a US tax document) on their Tahoe-LAFS grid.
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You can, with a little script, try various numbers for identity information
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and eventually end up with your full identity and salary. This is called
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the "Learn-The-Remaining-Information" attack.
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Here's the details of the origin of the convergence secret:
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`Convergence Secret Justification`_
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.. _`Convergence Secret Justification`:
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<https://tahoe-lafs.org/hacktahoelafs/drew_perttula.html>
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