For example the ShmooCon 2008 Badge Puzzle or the DEF CON 18 Crypto Challenge.
Full sets at http://darthnull.org/ – check the tab bar at the top for an index page, or just browse through the old posts.
by Alec Muffett
For example the ShmooCon 2008 Badge Puzzle or the DEF CON 18 Crypto Challenge.
Full sets at http://darthnull.org/ – check the tab bar at the top for an index page, or just browse through the old posts.
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