Fun puzzle from Cryptography Research

We got a package from our friends at Cryptography Research today. It was a puzzle inside a puzzle, worthy of being a significant plot device in a Dan Brown novel.

It took us several minutes to open, then the real fun began in cracking the cryptography.

Date: Wed, Dec 22, 2010 at 2:08 PMSubject: Re: crypto research encrypted puzzleCONGRATS! [... remainder removed]On Wed, Dec 22, 2010 at 2:03 PM, Kevin wrote:> Looks like [type of cipher]> > > On Wed, Dec 22, 2010 at 2:02 PM, David wrote:> > ICBJJEVM! [... remainder removed]