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From: Alex Kotenko <alexykot@gmail.com>
Date: Mon, 19 May 2014 14:53:04 +0100
Message-ID: <CALDj+BaG=t-j51kb4y_LYuhBwHZDnps0pSUZHyzLghkD+ChrVQ@mail.gmail.com>
To: Sergio Lerner <sergiolerner@certimix.com>
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Cc: bitcoin-development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Paper Currency
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Hmm, this is firmcoin thing looks like what I mean. They don't have a
solution yet, and prices they quote smartcards are unacceptable, but if
they will manage to get down in selfcost - that may work. Ok, I'll follow
them and see what it will come to.


Best regards,
Alex Kotenko


2014-05-19 13:55 GMT+01:00 Sergio Lerner <sergiolerner@certimix.com>:

>  Alex,
>
>     I think that what you are talking about more or less something like
> the Firmcoin
>
>     Check: http://firmcoin.com/?p=92
>
>
>
> On 18/05/2014 08:47 a.m., Alex Kotenko wrote:
>
>
>
>  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?
>
>
>   The firmcoin has two capacitive buttons that you have to press in
> sequence to redeem to coins. No long range antenna can do that.
>
> Best regards,
>  Sergio.
>
> PS:   the device has patents pending
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:courier =
new,monospace;color:#003300">Hmm, this is firmcoin thing looks like what I =
mean. They don&#39;t have a solution yet, and prices they quote smartcards =
are unacceptable, but if they will manage to get down in selfcost - that ma=
y work. Ok, I&#39;ll follow them and see what it will come to.</div>

<div class=3D"gmail_default" style=3D"font-family:courier new,monospace;col=
or:#003300"><br></div><div class=3D"gmail_extra"><br clear=3D"all"><div><di=
v dir=3D"ltr"><span style=3D"color:rgb(0,51,0);font-family:&#39;courier new=
&#39;,monospace">Best regards,=C2=A0</span><div>

<div><div style=3D"text-align:left"><font color=3D"#003300" face=3D"&#39;co=
urier new&#39;, monospace" style=3D"text-align:-webkit-auto">Alex Kotenko</=
font></div></div></div></div></div>
<br><br><div class=3D"gmail_quote">2014-05-19 13:55 GMT+01:00 Sergio Lerner=
 <span dir=3D"ltr">&lt;<a href=3D"mailto:sergiolerner@certimix.com" target=
=3D"_blank">sergiolerner@certimix.com</a>&gt;</span>:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">


 =20
   =20
 =20
  <div bgcolor=3D"#FFFFFF" text=3D"#000000">
    Alex,<br>
    <br>
    =C2=A0=C2=A0=C2=A0 I think that what you are talking about more or less=
 something
    like the Firmcoin<br>
    <br>
    =C2=A0=C2=A0=C2=A0 Check: <a href=3D"http://firmcoin.com/?p=3D92" targe=
t=3D"_blank">http://firmcoin.com/?p=3D92</a><div class=3D""><br>
    <br>
    <br>
    <div>On 18/05/2014 08:47 a.m., Alex Kotenko
      wrote:<br>
    </div>
    <blockquote type=3D"cite">
      <div dir=3D"ltr">
        <div><br>
        </div>
        <div><br>
        </div>
        <div>One problem we couldn&#39;t
          figure out here though - how to protect the notes from
          unauthorized=C2=A0redeem. Like if someone else tries to reach you=
r
          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=C2=A0NFC antenna? Any ideas?</d=
iv>
        <div><br>
        </div>
        <div><br>
        </div>
      </div>
    </blockquote></div>
    The firmcoin has two capacitive buttons that you have to press in
    sequence to redeem to coins. No long range antenna can do that.<br>
    <br>
    Best regards,<br>
    =C2=A0Sergio.<br>
    <br>
    PS: =C2=A0 the device has patents pending
  </div>

</blockquote></div><br></div></div>

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