[Uram-rejections] Contactless Cards- Radio Related

[webstump+uram-bounces at chiark.greenend.org.uk]

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> From webstump at chiark.greenend.org.uk Wed Mar 23 02:30:48 2016
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> From: rickman <gnuarm at gmail.com>
> Newsgroups: uk.radio.amateur.moderated
> Subject: Re: Contactless Cards- Radio Related
> Date: Tue, 22 Mar 2016 21:30:00 -0400
> Organization: A noiseless patient Spider
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> References: <nch2sh$g4c$1 at dont-email.me> <dl2i4cF9o4eU3 at mid.individual.net>
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> On 3/22/2016 7:20 PM, David Woolley wrote:
> > On 22/03/16 15:19, rickman wrote:
> >> Is the ability to read the card the only means of protection?  Is there
> >> no security built in?
> >
> > There is a limited amount of data, including the PAN, which is available
> > in clear from some cards, but most if it is protected by encryption
> > and/or hashes with nonces.  The PIN isn't sent in clear.
> 
> How easy is it to probe the card for the needed info by spoofing?  I 
> can't see how it would be very easy to eavesdrop on a card in use.
> 
> -- 
> 
> Rick
> 
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