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seen Oct 11 '11 at 7:21

Sep
27
comment What is the best method to determine the language used in a monoalphabetic substitution cipher?
Thanks! I'll check these up.
Sep
26
comment What is the best method to determine the language used in a monoalphabetic substitution cipher?
I got it from a friend as a challenge, as he couldn't break it. Monoalphabetic is a guess, I'm quite new to ciphers but made this assumption due to the high IC and that the letter frequency table is unbalanced (otherwise it's a poor multialphabetic cipher!?) However, I'm not certain if it's a pure substitution cipher or a combination of that and transposition (could be as simple as it's reversed and pattern-matching becomes harder). Maybe the absence of whitespaces indicates something? Since I have such little to go on, identifying the language would be a nice first step.
Sep
26
comment What is the best method to determine the language used in a monoalphabetic substitution cipher?
Thank you for your tips! My cipher is not handwritten, have no whitespaces and I have no clue what it's about (it consist of some 400 letters, the most common occurs 18.4%, IC= 0.077, no triplets). So it may be an example of a cipher with unknown language. I guess what you are saying is that one have to assume one language and then try solving it, if that fails try another. Is there a smart way to identify a language through pattern-matching, without actually solving it? (Remember i do not know the word boundaries) May the formation of the monogram frequency-chart somehow be used?
Sep
20
awarded  Student
Sep
19
asked What is the best method to determine the language used in a monoalphabetic substitution cipher?