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Re: IETF solution for pairing cellular hosts

2007-09-25 12:38:44
On 9/25/07, Daniel Senie <dts(_at_)senie(_dot_)com> wrote:

 At 03:02 PM 9/25/2007, Pars Mutaf wrote:



On 9/25/07, *Pars Mutaf* <pars(_dot_)mutaf(_at_)gmail(_dot_)com> wrote:
 Hello,

On 25 Sep 2007 16:33:32 -0000, John Levine < johnl(_at_)iecc(_dot_)com> wrote:
 >1. The querier user types the target user's "human name" (as if he were
  consulting a phonebook), or a pseudoynm.
2. The pairing request is forwarded to the target phone.
3. The query, along with the querier user's name, are displayed on the
  target phone's screen.

I have a list of 250,000 people here (scraped off web sites) to whom
I'd just love to make recorded phone calls.  Can I use your protocol
to ask them all if it's OK?  If not, why not, and how are you going to
stop me?


Using a Turing test (CAPTCHA) for example.

 http://en.wikipedia.org/wiki/Captcha

When you make a request, the target phone returns a captcha. If you
don't provide the right solution, the target user won't even see your
request, it will be dropped. Captcha's difficulty can be adaptively
tuned by the target phone..

So another step should be added to the above description.


A quick addition to my previous mail:

Captcha is proposed for protecting the target user against
disturbing bogus requests.

There is also the 4th step (below) in the original mail which suggests
that user approval is needed before the phone number
(or any info you like) is returned to the querier:

4. The target user approves the request in real-time by pushing on the YES
   button of the phone.


And hopefully this can all be FULLY disabled, or be disabled by default.
Otherwise, everyone will be inundated with these messages popping up, asking
you to hit the "yes" button. Count me as someone who'd never want this
protocol implemented in my phone.


You have the other problems listed above in this case (manual exchange
difficult etc.
and the other problems listed in my original mail).

Why the CAPTCHA solution is not enough for you? In my personal view, the
person who
wants to disturb you is the one who is suffering (CAPTCHAs can be made very
hard
if you wish).

Maybe it wasn't clear. Here are the steps:

The querier user makes the request.
The target phone returns a CAPTCHA.
The querier user solves the CAPTHA.
The target user sees the query displayed on the screen and approves the
request (or not).
The phone number is returned (or not).




Thanks,
pars





Regards,
pars



 I hope this answers your question!

Regards,
pars



 Regards,
John Levine, johnl(_at_)iecc(_dot_)com, Primary Perpetrator of "The Internet 
for
Dummies",
Information Superhighwayman wanna-be, http://www.johnlevine.com , ex-Mayor
"More Wiener schnitzel, please", said Tom, revealingly.



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