[Cryptography] Unicity distance of Playfair

[Max Kington]

On 19 Mar 2016 2:08 pm, "mok-kong shen" <mok-kong.shen at t-online.de> wrote:
>
>
> Given the classical scheme Playfair, say, for 5*5 matrices, I am
> interested to determine its unicity-distance. How should one proceed
> to properly do that? Thanks in advance.

http://practicalcryptography.com/cryptanalysis/text-characterisation/statistics/
was a good reference when I was asked the same question on my masters.

There are lots of academics on this list. Perhaps you even know some of
them..
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