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Re: Coded sentences

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On 2016-04-07, Mok-Kong Shen <mok-kong.shen@t-online.de> wrote:
>
> A codebook in classical crypto is a mapping from a chosen number of 
> normal or nonsense words to the corresponding intended words or even 
> phrases and sentences. Wouldn't a generalization of that idea, namely a 
> mapping from certain types of sentences to the corresponding intended 
> phrases or sentences be much more versatile and useful in practice for 
> purposes of steganographical transmission of secret messages? I mean 
> e.g. a rather mundane sentence expressing the fact that some friends 
> came to visit us and we have together done something and that they'll 
> further travel to somewhere could be written in a quite large number of 
> different ways textually via varying the names of the visitors and what 
> we have jointly done etc. as well as via varying the grammatical 
> constructions of the sentence.

If you have 5 words you want to transmit, OK. If you want to encrypt
10^9 bytes, it is hopeless. Languages are pretty well structured, and
meaning is also well structured. It is really hard to tell a computer
how to manufacture plausible and meaningful text. 
So no, it would not be more versatile and useful. 
>
> M. K. Shen

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Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-07 22:36 +0200
  Re: Coded sentences William Unruh <unruh@invalid.ca> - 2016-04-08 01:30 +0000
    Re: Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-08 23:14 +0200
      Re: Coded sentences William Unruh <unruh@invalid.ca> - 2016-04-08 22:44 +0000
        Re: Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-09 19:54 +0200
          Re: Coded sentences William Unruh <unruh@invalid.ca> - 2016-04-09 20:21 +0000
            Re: Coded sentences Barry Margolin <barmar@alum.mit.edu> - 2016-04-09 16:31 -0400
            Re: Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-10 23:09 +0200
              Re: Coded sentences William Unruh <unruh@invalid.ca> - 2016-04-10 21:28 +0000
                Re: Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-11 22:39 +0200
                Re: Coded sentences William Unruh <unruh@invalid.ca> - 2016-04-11 21:47 +0000
                Re: Coded sentences Mok-Kong Shen <mok-kong.shen@t-online.de> - 2016-04-12 21:55 +0200

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