Calculate/show (in %) how far is key generation process? about openpgpjs HOT 7 CLOSED

Hey, nice idea. Maybe the mailing list is better to discuss this:
http://list.openpgpjs.org/

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Hm, does it vary within one machine that much? If that's the case then it's almost certainly a difference in how long it takes to generate the random values. Unfortunately the window.crypto.getRandomValues does not provide us a lot of insight into the progress it is making. A more creative solution might be necessary for this...

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I am pretty sure this is not possible due to the way keys are generated.

If you generate a key, he basically takes two random numbers and searches for the next bigger prime.
Because you do not know how far away the next bigger prime is, you can not know how long it will take until you get there.
The only thing you can display is when the first prime was found but there is no way in telling how long the second one will take. It often occured to me that the first prime took 2 seconds and the second took 20 seconds.

As for that I think it is impossible. There is a reason enigmail for example does not have a bar either. (To say the truth: it has a bar, but the bar does not move fluently and just gets stuck at one point)

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Is it possible to profile the system with some simpler calculations, time how long that takes, and use it to "fake" a progress percentage?

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@patcon

I am trying this by letting browser create a 128bit key which is pretty fast any browser. I am not faking a percentage but telling user that the key creation might take a minute or a few minutes etc...

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Nice! 👍

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Not relevant anymore as we use native keygen now in most cases.

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