] This is an unofficial list of well-known unsolved codes
] and ciphers. A couple of the better-known unsolved
] ancient historical scripts are also thrown in, since they
] tend to come up during any discussion of unsolved codes.
] There has also been an attempt to sort this list by
] "fame", as defined by a loose formula involving the
] number of times that a particular cipher has been written
] about, and/or how many hits it pulls up on a
] moderately-sorted Google search.

A list of unsolved codes and ciphers from Elonka. If anyone can think of anything she missed, she wants to know.

Elonka's List of Famous Unsolved Codes and Ciphers