It looks like an attempt to explain a word coding system...
secure communications takes two general forms... encryption which will transmute the plain text into meaningless symbols based on sometimes rather sophisticated algorithm.
A simple (trivial) example is "rot13" where the letters of the plain text are "rotated 13 positions" such that "a" becomes "m" and "b" becomes "n" and so on.
The other method is coding... where both sides of a secure communication have a plain text to coded message dictionary so that a word like "dictionary" becomes "glop" and so on.
The problem with coding is that all possible words that may occur in the message have to be agreed upon by sender and receiver and the translation dictionary or "key" becomes a thing that must be secured.
more sophisticated coding schemes use things like a "one time pad" dictionary... where every message is encoded with a new translation.
My favorite technique is steganography... where the message (usually already encrypted using a strong algorithm ) is chopped into very small bits (in computer world, actual bits). These bits are appended to something else and are hiding in plain site. For example... lets suppose I send you a video file. In that video file format, every pixel is represented by some number of computer bits... each group of bits represents a color. Now suppose I take the least significant bit and "flip" it to represent 1 bit of the encrypted message. The video will still play... and a casual observer won't even notice any issues with the video. But if the receiver knows that the video contains a message... they can decode it by stripping the least significant bit from every pixel and then decrypting the result. A video file describes millions to billions of pixels... and so the sender can transmit very complex messages. If they also code the message then even if the intercept KNOWS that this is an encrypted stegograph, it doesn't help them understand what is being sent.
Not sure what the poster was trying to communicate with the posting.
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