How to generate a new Key value

Question

Elysi Cochin 2017-11-3

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https://ww2.mathworks.cn/matlabcentral/answers/364893-how-to-generate-a-new-key-value

回答： Steven Lord 2017-11-3

采纳的回答： Steven Lord

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With a integer row vector (p1) and a randomly generated key using key = rand;

i wanted to generate a "newKey" (can we generate a single value?)

size of p1 = 1xn
size of key = 1x1

any methods can be used. Please can someone suggest some key-generation ideas or links how to do it or how it can be done.

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Adam 2017-11-3

编辑：Adam 2017-11-3

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You aren't giving enough information on what properties you want for your key. e.g. You could just do

newKey = sum( p1 ) + rand;

or

newKey = prod( p1 ) + rand;

but neither of those will necessarily meet the properties you may want from a key.

Jos (10584) 2017-11-3

Can you give a small example of the input and the expected output, and the relation between the two?

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Answer 1

Steven Lord 2017-11-3

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https://ww2.mathworks.cn/matlabcentral/answers/364893-how-to-generate-a-new-key-value#answer_289264

If you're looking to create your own random number generator (where p1 is the state), here are two possibilities.

newKey = 4;

or

newKey = 9;

If you want something a bit more robust than the XKCD or Dilbert pseudorandom number generators, perhaps you want to implement your own PRNG. A linear feedback shift register may be suitable for your needs and shouldn't be too difficult to write in MATLAB.

If you're not looking to create your own random number generator, I think we need a lot more information about your task in order to be able to offer any useful suggestions. Start from the beginning, assume we know nothing about what you've been asked or told to do (because we don't) and explain in detail.