Chaotic bit stream cipher
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Hello
I have a sets of data stream, i want to encrypt the data streams using chaotic system or logistcs map. unfortunately the codes i have found are used to encrypt images, could i use the same code for the data streams?
thanks in advence
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Walter Roberson
2019-12-16
0 个投票
Logicists maps can be used for this purposes, as they only need to know the current state.
"cat map" on the other hand requires 2D arrays. In theory you could create a 2D array of encryption information, and then keep a 2d state variable that reflected your current virtual position in the array, moving between the positions according to cat map.
But what you are asking is algorithm questions, and you should be researching in algorithm sources.
It is not entirely clear whether we are legally permitted to assist you with code for this purpose; the USA has strict laws about code for encryption purposes, and I think it likely that further discussion of implementing MATLAB code would pass those legal limits.
4 个评论
Amelia
2019-12-16
Walter Roberson
2019-12-17
Which tool are you asking about? MATLAB itself does not have any Logistics Map of catmap tool. Are you using the File Exchange Contribution https://www.mathworks.com/matlabcentral/fileexchange/32424-logistics-map and referring to that as your tool ?
Amelia
2019-12-25
Walter Roberson
2019-12-26
Well, that File Exchange contribution cannot itself be used to encrypt or encode anything. However you can make use of the fundamental equation
x(i)=r*x(i-1)*(1-x(i-1));
The question you would have would be "given that a chaotic floating point sequence can be created, how would you use that to encrypt or encode a bit stream?
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