Welcome Guest [Log In] [Register]
Viewing Single Post From: Running Key Challenge
Revelation Dec 9 2007, 04:24 PM
Member Avatar
Administrator
[ * * * * * ]
 That was a cool challenge!

My method:

After doing some reading on the Vigenere autokey, I thought I knew what to do. First I swept the text for "the", yielding 'his' and 'did' as the two best options.

Then I tried filling up the beginning with abc, and that gave me 'this'. Then I knew that my 'his' was 'this'. This also gave away the shift. After getting this critical information, the rest was easy :)


The result:
thisisthewinterofourdiscontent

and the key:
abcdethisisthewinterofourdisco
RRRREJMEEEEEPVKLWENFNVJKEEEEEAOLKAFKLXCFZAASDJXZTTTTTTTLSIOWJXMOKLAFJNNKFNXN
RAGRBAQEMHIGDJVDSEOXVIYCELFHWLELJFIENXLRATALSJFSLCYTKLASJDKMHGOVOKAJDNMNUITN
RRRRLJVEEEEECLYVYHNVPFTAEEEEEMWLMEIRNGLARWJAKJDFLWNTIERJMIPQWOTZEOCXKNUBNXCN
RJIRPOWEANFUSNCZVDVZNMSFEKLOEPZLDKDJWSAAAAAAAOERHJCTNCKFRIMVKSOFOMKMANREWNBN
RZUDRGXEEEEENFQIDVLQNCKNEEEEEDGLLLLLLAWIOSNCDARLODMTOEJXMILDFJROTKJSDNLVCZNN
Offline Profile Quote Post
Running Key Challenge · Challenges