RTL-entropy: Uses RTL-SDR to turn a DVB-T dongle into an entropy source

Re:RTL-entropy: Uses RTL-SDR to turn a DVB-T dongle into an ... by squarefoot on Wednesday March 28, 2018 @08:22AM (#16697116)

Thermal and other noise by analog electronic parts (resistors, transistors pushed to high gain etc.) comes to mind. They are much safer compared to an online service, app or a piece of hardware one doesn't have the source for, but I have no idea if that noise is good once sampled to be used in cryptography or other non-analog fields.

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Re:RTL-entropy: Uses RTL-SDR to turn a DVB-T dongle into an ... by DanBC on Wednesday March 28, 2018 @08:41AM (#16697221)

You have to sample the noise, and deskew it, and check the components are still operating. This is where the errors normally lie.

It's probably a fun project to try, but I'd be wary of using it for cryptography if only because we have other better methods.

I collected a bunch of links a while ago. Here they are, I don't know if these are still working or interesting, but they might be useful: https://news.ycombinator.com/item?id=6060636

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Re:RTL-entropy: Uses RTL-SDR to turn a DVB-T dongle into an ... by mikevin on Friday March 30, 2018 @01:48PM (#16718235)

Thanks for this! I was looking for something like this to play with.

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