Il 04/07/2014 05:54, Robert J. Hansen ha scritto:
> If someone asks you for your certificate, you don't have to
> trade a SHA-1 fingerprint -- just put down your keychain and let the
> person wave a cell phone over it.
Just place in the tag the URL where to retrieve your key.
> Obviously there ar
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On Friday 4 July 2014 at 6:24:53 AM, in
, Robert J. Hansen wrote:
> NFC is significantly more convenient than
> fumbling with your phone's camera app, taking a
> snapshot, etc. Wave it and it's done. NFC has some
> interesting human interface
It seems that APG and OpenKeychain on Android supports GPG key exchange
via NFC just like BBM pin exchange via QRcode.
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First thought: wow, someone came up with an NFC application that I
would actually accept as not obviously horrible security.
Second thought: you could just keep your public key in a saved TXT
and just send it to the other's phone that way. Even my unsmart phone
with the 4.5cm screen can do that
> Read-only you say?
Given I've only been playing around with these things for the last few
hours, you'll have to forgive the occasional newbie mistake. :) But
damn, they're *neat*!
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On 04-07-2014 6:18, Robert J. Hansen wrote:
> But what if giving them your key was as simple as putting down a
> read-only NFC token and telling people, "there, scan that"?
Read-only you say? NFC writers are cheap (they were even sold out here
when someone foud out you could use them to top-up th
On 07/03/2014 11:54 PM, Robert J. Hansen wrote:
> the ability to store 400 bytes, to
> access it quickly and easily, and all in a tag that costs less than a
> dollar and can be read with almost any modern smartphone, is kind of cool.
it is cool indeed.
You can also get all of the above properties
> You can also get all of the above properties...
*Almost*. NFC is significantly more convenient than fumbling with your
phone's camera app, taking a snapshot, etc. Wave it and it's done. NFC
has some interesting human interface engineering behind it.
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> 1) might it be possible to combine several of these storage devices
> (reading them one after the other) to add up their capacity?
Probably, but once you've got a dozen of these things they sort of stop
being a convenient form factor. :)
> 2) wouldn't it be enough to transfer the mainkey? Or
> This is too large to store an RSA or DSA2 certificate, unfortunately.
Too *small*. Sorry. Time for me to go drink coffee straight from the pot.
Also, for Americans, happy Fourth of July. :)
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Am Do 03.07.2014, 23:54:39 schrieb Robert J. Hansen:
> Bring it close
> to a mobile phone and presto, bang, it can access the 400 bytes.
>
> This is too large to store an RSA or DSA2 certificate, unfortunately.
I don't even have a smartphone... but
1) might it be possible to combine several of
A good friend just gave me a handful of NFC tags that are capable of
storing about 400 bytes. It's a convenient form factor: a cardboard
disk with an adherent backing, perhaps 2.5cm across. Bring it close to
a mobile phone and presto, bang, it can access the 400 bytes.
This is too large to store
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