The Pollux cipher is a super-encryption system based on Morse code and replaces the dots, dashes and space by alphanumeric characters (0 - 9, a - z, A - Z are supported). When encrypting, a corresponding character is randomly
selected from the list of possibilities; therefore every encryption will be almost certainly be different each time.
Some versions of this cipher use only numbers for the character replacement, as in this example, however the version implemented here has been expanded to support numbers, lowercase, and uppercase letters in the replacement possibilities. Note: Each of the alphanumeric characters must be unique in each set of replacement dots, dashes, and spaces.