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About the so-called Vigenere code, Vigenere doesn't use numbers, which the codes in TINP have. Vigenere is a set of alphabets, set up by a key word. For example, if the keyword is Knock, a table fo vigenere code would look like this.
-->(nocode) ABCDEFGHIJKLMNOPQRSTUVWXYZ
-->(code 1) KLMNOPQRSTUVWXYZABCDEFGHIJ
-->(code 2) NOPQRSTUVWXYZABCDEFGHIJKLM
-->(Code 3) OPQRSTUVWXYZABCDEFGHIJKLMN
-->(Code 4) CDEFGHIJKLMNOPQRSTUVWXYZAB
-->(Code 5) KLMNOPQRSTUVWXYZABCDEFGHIJ
You'd then code the phrase like this:
First letter: use the letter corresponding to T in the first alphabet
Second letter: use the letter corresponding to H in the second alphabet...
etc. etc...
Maybe the numbers signify a change to a different alphabet, but then what is the keyword? we need to know that, or else, we can't arrange the alphabets correctly. Or each "alphabet" could actually be alphanumeric.
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