Re: How can you verify the randomness that's coming from a hardware?
⭐ Merited by vapourminer (1)
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That just confirms that this is a good circuit. 
I would imagine all such usb devices use that technology in some way. They're definitely not sampling radioactive decay or something right?Worst-case even just spitting out numbers deterministically and not uniformly random.
That's why I'd prefer to buy a device with open-source hardware.
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I just wasn't aware that they're sold under the simple term 'TRNG', as I couldn't find anything when looking for 'avalanche noise circuit PCB'.
Because they want to be a bit cryptic about how exactly their device works. They don't want people to build one themself necessarily. 
Trezor and Foundation Devices have shown that open-source hardware is possible without your business going down due to the bad bad DIY scene.
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It would be good if these devices came with schematics and board files to verify the circuit more easily.
yeah there's no way that's happening with something like TrueRNG. Quote
(1) Compare product to PCB files
(2) Compare PCB files to schematics
(3) Check schematics to understand what the circuit does and verify that it's what you want it to do
They don't want you doing that. No one want someone doing that to their product? The reason is simple. if you could do that, you could just build the thing yourself. and don't need to buy it from THEM.(2) Compare PCB files to schematics
(3) Check schematics to understand what the circuit does and verify that it's what you want it to do
