Basic frequency analysis tool.
Toy script to aid with basic frequency analysis tasks.
Given a file (supposedly containing intercepted ciphertext),
it will search for the most frequent:
The character set can be tailored with the -c option. By default, all
possible Byte values (0 - 255) are used:
%a (default): Entire numeric range of a Byte%l: lowercase letters (ASCII)%u: uppercase letters (ASCII)%n: alphanumeric characters (ASCII)%h: hex characters (0 - F)