📅 Original date posted:2014-05-18
📝 Original message:Erm, few things here.
- I can't see really how to embed electronics capable to run an SPV
client into printed paper. I know that passive NFC tags can be printed on
paper, but not actual chips and/or power modules. So we are talking about a
completely different things here.
- even with paper notes printed proprietarily by some business the notes
itself still can have routes for independent blockchain-based verification,
and you won't need to trust anybody to test it. You will have to trust
security of the notes itself, but this is same as when you trust the phone
manufacturer when you're putting your bitcoin wallet on it.
So really I see only issues of technical security in here, and this is
the problem I'm seeking solutions for.
Best regards,
Alex Kotenko
2014-05-18 14:50 GMT+01:00 Natanael <natanael.l at gmail.com>:
> Now you are talking about Trusted Platform Modules. Like smartcards,
> actually. Devices that won't leak their keys but let the holder spend the
> coins. It could even have it's own simple SPV wallet client to make it
> easier to handle. And they'd use the attestation features provided by the
> TPM to prove the software it's unmodified top the current holder.
>
> But then you still have to trust the manufacturer of the device, and you
> have to trust it has no exploitable side channels.
>
> - Sent from my phone
> Den 18 maj 2014 13:52 skrev "Alex Kotenko" <alexykot at gmail.com>:
>
>
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Alex Kotenko [ARCHIVE] /
npub14j…h00t4
2023-06-07 15:21:35
in reply to nevent1q…rnak
Author Public Key
npub14jv7tj33yt72yk8mljmvkck3p4xm5s3mxfpj289up38qqsn9dhkqeh00t4Published at
2023-06-07 15:21:35Event JSON
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"content": "📅 Original date posted:2014-05-18\n📝 Original message:Erm, few things here.\n- I can't see really how to embed electronics capable to run an SPV\nclient into printed paper. I know that passive NFC tags can be printed on\npaper, but not actual chips and/or power modules. So we are talking about a\ncompletely different things here.\n- even with paper notes printed proprietarily by some business the notes\nitself still can have routes for independent blockchain-based verification,\nand you won't need to trust anybody to test it. You will have to trust\nsecurity of the notes itself, but this is same as when you trust the phone\nmanufacturer when you're putting your bitcoin wallet on it.\n\nSo really I see only issues of technical security in here, and this is\nthe problem I'm seeking solutions for.\n\n\nBest regards,\nAlex Kotenko\n\n\n2014-05-18 14:50 GMT+01:00 Natanael \u003cnatanael.l at gmail.com\u003e:\n\n\u003e Now you are talking about Trusted Platform Modules. Like smartcards,\n\u003e actually. Devices that won't leak their keys but let the holder spend the\n\u003e coins. It could even have it's own simple SPV wallet client to make it\n\u003e easier to handle. And they'd use the attestation features provided by the\n\u003e TPM to prove the software it's unmodified top the current holder.\n\u003e\n\u003e But then you still have to trust the manufacturer of the device, and you\n\u003e have to trust it has no exploitable side channels.\n\u003e\n\u003e - Sent from my phone\n\u003e Den 18 maj 2014 13:52 skrev \"Alex Kotenko\" \u003calexykot at gmail.com\u003e:\n\u003e \n\u003e\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20140518/5a1cb108/attachment.html\u003e",
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