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Author Topic: PaperCoins  (Read 3616 times)
casascius
Mike Caldwell
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The Casascius 1oz 10BTC Silver Round (w/ Gold B)


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February 02, 2012, 02:24:48 PM
 #41

The idea that someone could use a URL to their own server is a credible concern and not a whole lot can be done to stop it.

EV SSL (https with green bar) would help but surely there's a lot of people who wouldn't know to look or notice.

Idea would still work among known/trusted trading partners and as a proof of concept, but no magic bullet.

Companies claiming they got hacked and lost your coins sounds like fraud so perfect it could be called fashionable.  I never believe them.  If I ever experience the misfortune of a real intrusion, I declare I have been honest about the way I have managed the keys in Casascius Coins.  I maintain no ability to recover or reproduce the keys, not even under limitless duress or total intrusion.  Remember that trusting strangers with your coins without any recourse is, as a matter of principle, not a best practice.  Don't keep coins online. Use paper wallets instead.
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February 02, 2012, 08:08:42 PM
 #42

I'd be happy with improved CSS for bitaddress.org  I started playing around with the paper wallet layout, but couldn't come up with anything I liked more.

I was also trying to decide if its worth having it laid out so you can fold the note to cover the private key.

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February 02, 2012, 08:19:15 PM
 #43

I'd be happy with improved CSS for bitaddress.org  I started playing around with the paper wallet layout, but couldn't come up with anything I liked more.

I was also trying to decide if its worth having it laid out so you can fold the note to cover the private key.

+1 i would like that too

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February 02, 2012, 08:31:17 PM
 #44

I was also trying to decide if its worth having it laid out so you can fold the note to cover the private key.

If you get a nice design, please post it. In the mean time, I got my hands on a business card holder that opens on a side, so I can put the bills with the qr code first. When I need one, I only extract haft the bills, enough to see the numbers on them, but not also the QR code. If someone can manage to steal the key in this way, they deserve the coins Smiley
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Let's talk governance, lipstick, and pigs.


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February 12, 2012, 04:27:40 PM
 #45

I wonder if a better scheme might be to print papercoin QR codes in invisible ink.
You only need a UV light to scan it.
http://www.lifehack.org/articles/lifehack/how-to-make-invisible-ink-for-ink-jet-printers.html

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February 13, 2012, 10:47:33 AM
 #46

It's better (and cool) but I think it's a little too complicated to use (for both the buyer and the seller). A different paper layout that hides the QR code is much easier to do and offers the same security.
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February 26, 2012, 05:39:34 PM
 #47

Seems like a pretty good idea, I just wish more store accepted bitcoins Sad

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