TheCodeBreakers
For example, if a polyalphabetic
cipher provides 26 cipher alphabets, a keyword might define the half dozen or so that are to be used in a
particular message.
Codewords or codenumbers can be subjected to transposition or substitution just like any other group
of letters or numbers—the transforming processes do not ask that the texts given to them be intelligible.
Code that has not yet undergone such a process—called superencipherment —or which has been
deciphered from it is called placode, a shortening of "plain code." Code that has been transformed is called
encicode, from "enciphered code."
To pass a plaintext through these transformations is to encipher or encode it, as the case may be. What
comes out of the transformation is the ciphertext or the codetext. The final secret message, wrapped up
and sent, is the cryptogram. (The term "ciphertext" emphasizes the result of encipherment more, while
annaabi.ee 
