LesterG wrote:jetblack wrote:This is probably a Caesar cipher with a keyword.
Ex: Keyword HOLE gives H=A, O=B, L=C, E=D, A=E, B=F, C=G, D=H, F=I, G=J etc.
We just need to try out different keywords until we get it right!
Or it could be a Vigenère cipher which is a bit trickier. But as long as we guess the right keyword and use the tabula recta this shouldn't be too hard.
I think your on to something, maybe instead of hole, should try the subject of his post as the keywords?
Ie: It might as well hurt
Yeah, but after haven given it some thought I don't think it's that easy.
Problem is that we have combinations like FG, BC and XY. Unless they correspond to DE, HI, NO, OP, ST, TU, UV, AB (ie letter combinations that occure in the English language this cannot be a Caesar cipher.
DontHaveAClue wrote:FGNQBOZUMZBXPHTBCVDGFKQEGKCQUTWJDASDMFNDNGZGDXY
48 characters, which in alphabetical order give:
ABBBCCDDDDDEFFFGGGGGHJKKMMNNNOPQQQSTTUUVWXXYZZZ
so we have 23 letters (I, L and R are missing), with the frequencies:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
1 3 2 5 1 3 5 1 0 1 2 0 2 3 1 1 3 0 1 2 2 1 1 2 1 3
So?
We miss a key here to decrypt this thing. I guess that could be in "It might as well hurt"
This is HIGHLY interesting.
I'm thinking that the missing letters correspond to letters that are the least used in English, like Q, K, J or whichever they are.
If we trust the frequency analysis, we might suspect that D and G correspond to A and E (or E and A).
EDIT: D and G are probably E and T (or vice versa) since T is more common than A and the letters occure next to eachother in Frank's message.
The most common letters in the English language are ETAOIN SHRDLU