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From: Alex Kotenko <alexykot@gmail.com>
To: Brooks Boyd <boydb@midnightdesign.ws>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Paper Currency
Date: Mon, 19 May 2014 14:50:34 +0100	[thread overview]
Message-ID: <CALDj+BYoP9=13b4=jLCBjEwectY-+pp3Y1wMAP4z=ydEoTM5Nw@mail.gmail.com> (raw)
In-Reply-To: <CANg-TZAFdmPBj_+U=jbhP_t9Gb-yZ-8LMtGzj+6ub=qWcLP0UQ@mail.gmail.com>

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Asking random ignorant stranger to care to protect themselves never works.
We need solution that requires strictly zero effort.


Best regards,
Alex Kotenko


2014-05-19 14:06 GMT+01:00 Brooks Boyd <boydb@midnightdesign.ws>:

> >> 2014-05-18 13:14 GMT+01:00 Andreas Schildbach <andreas@schildbach.de>:
> >> One problem we couldn't figure out here though - how to protect the
> >> notes from unauthorized redeem. Like if someone else tries to reach your
> >> wallet with his own NFC - how can we distinguish between deliberate
> >> redeem by owner and fraudulent redeem by anybody else with custom built
> >> long range NFC antenna? Any ideas?
> >>
> >> I think you'd need multiple factors to protect against that attack. Like
> >> encrypting with a key that is printed on the note as an QR code.
> >
> >On Sun, May 18, 2014 at 7:51 AM, Alex Kotenko <alexykot@gmail.com> wrote:
> >
> > Yes, but it must not sacrifice usability. It's paper money, people are
> used to it and they have rather high standard of expectations in this area.
> Any usbility sacrifices in this area result into failure of the whole thing.
> >
> > Best regards,
> > Alex Kotenko
>
> One thought I had reading through this exchange: I think the general
> public is becoming more aware of the "hacker with a long range
> antenna" sort of attack, since credit cards are getting microchips
> that can be scanned. There's a few videos I've seen of white hat
> hackers demonstrating how a suitcase-sized apparatus carried by
> someone walking down the street can scan and make charges on cards in
> people's pockets as the attacker brushes past. Hence RFID-blocking
> sleeves/wallets are on the market, such that your smart credit card
> can't make a purchase while its in your wallet. Is a RFID-blocking
> wallet also NFC-blocking? Irregardless of whatever "future cash" you
> choose to carry (be it credit card or bitcoin card/coin/cash), perhaps
> its the wallet/purse that needs an upgrade, to ensure your money
> doesn't spend itself while its in your pocket, but you can easily
> remove it and spend it conveniently?
>
> Brooks
>
>
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  reply	other threads:[~2014-05-19 13:51 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-17 15:31 [Bitcoin-development] Paper Currency Jerry Felix
2014-05-17 15:45 ` Matt Whitlock
2014-05-17 16:07 ` Chris Pacia
2014-05-17 16:40   ` Gregory Maxwell
2014-05-18 11:47     ` Alex Kotenko
2014-05-18 12:14       ` Andreas Schildbach
2014-05-18 12:51         ` Alex Kotenko
2014-05-19 13:06           ` Brooks Boyd
2014-05-19 13:50             ` Alex Kotenko [this message]
2014-05-18 13:50       ` Natanael
2014-05-18 18:47         ` Alex Kotenko
2014-05-18 20:10           ` Natanael
2014-05-19 10:26             ` Alex Kotenko
2014-05-19 12:55       ` Sergio Lerner
2014-05-19 13:34         ` Martin Sip
2014-05-19 13:53         ` Alex Kotenko
2014-05-19 14:47         ` [Bitcoin-development] patents Adam Back
2014-05-19 15:09           ` Mike Hearn
2014-05-19 18:27             ` Peter Todd
2014-05-19 18:40               ` Mike Hearn
2014-05-19 18:43             ` Gregory Maxwell
2014-05-19 18:46               ` Peter Todd
2014-05-19 18:49               ` Mike Hearn
2014-05-19 22:15             ` Bernd Jendrissek
2014-05-20 10:30           ` Jeff Garzik
2014-05-18 13:50 ` [Bitcoin-development] Paper Currency Andreas Schildbach
2014-05-19 12:21 ` Mike Hearn
2014-05-19 18:20   ` Justus Ranvier
2014-05-19 18:39     ` Peter Todd
2014-05-18 19:54 Jerry Felix

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