Friday, July 03, 2009
Encoding liberty
More than 200 years ago, Thomas Jefferson received a letter in a cipher that has only just been broken (by, as it happens, a cryptographer in a government facility not a mile from my house). Turned out it was a joke, albeit a respectful one.
CWCID: Volokh.
3 Comments:
, atVery cool. I hope they can work this in to the next "National Treasure" film.
By Unknown, at Fri Jul 03, 09:26:00 AM:
TH: That should read 'cryptanalyst'. A cryptographer creates ciphers. A cryptanalyst breaks them.
, at
Speaking of Thomas Jefferson, he also invented an encryption device, the Jefferson Disk.
You can read more about it at wikipedia:
http://en.wikipedia.org/wiki/Jefferson_disk
There is only one "slight" problem with this wikipedia entry. They use "heilhitler" as the text to show how this device worked.
Vilmos