Hi everyone - 

Just two quick comments on the "how much data should be disclosed" theme…

1 - I think the fact that this is being discussed in detail is very healthy; 
the fact that there's no easy answer shouldn't deter us from exploring all the 
nuances and contradictions.

2 - In case it's useful… I can think of at least three instances where I can 
communicate successfully with a website, without that website knowing my IP 
address:

A trivial case: when I'm behind a network component that performs Network 
Address Translation
A more general case: When I'm using TOR (The Onion Router) and my traffic 
passes through one or more intermediary nodes
A more specific case: when I use privacy-enhanced search tools like IXQuick or 
DuckDuckGo

Yrs.,
Robin

Robin Wilton
Technical Outreach Director - Identity and Privacy
Internet Society

email: [email protected]
Phone: +44 705 005 2931
Twitter: @futureidentity




On 3 Sep 2012, at 11:33, S Moonesamy wrote:
> 
> 
>> * Section 5: The right amount of information
>> 
>> I believe what this section should say is that there are situations where 
>> one would like to provided information to the recipient so that a response 
>> can be provided and in other cases that's not desired. For example, in 
>> today's telephone system you can hide your phone number. Similarly, in SIP 
>> there are ways to prevent all information to reach the recipient.
> 
> I will see how to fit in the following sentence in Section 5:
> 
>  There are situations where one would like to provided information to the
>  recipient so that a response can be provided and in other cases that's
>  not desired."
> 
> I read about several identifiers, including the phone number for SIP, when I 
> wrote the draft.  I decided to avoid SIP as I could not find a definition 
> similar to "where" or "to whom" which the average person might grasp easily.  
> I'll comment on the telephone system as an example.  Let's say that you call 
> me and you hide your phone number.  We can still have a conversation; a 
> response can be provided.  Now, why can't I hide my IP address when I go to a 
> web site?  We both know the argument.  That gets you to: why does the 
> Internet work like that?
> 
>> So, the question isn't really about all or nothing but it is about the 
>> ability for the user to decide about the context when they want to reveal 
>> information and when they don't.
> 
> That's another way to look at it.  Let me put it differently.  We don't ask 
> for consent to reveal the IP address.  That's the all-or-nothing proposition 
> for communication over the Internet.  We could argue about having a "trusted" 
> middle so that the user does not have to reveal the IP address.  We end up 
> putting into question an architectural choice on which the Internet is based. 
>  I used the following as the argument:
> 
>  "There is an implicit assumption that the underlying protocols are
>   transmitting the right amount of information needed for the
>   protocols to work."
> 
> The "amount of information needed for the protocol to work" is debatable.  It 
> comes down to a technical choice where we may decide that it is necessary to 
> transmit the IP address at a different layer to address a performance issue.  
> The question I might ask the user is:
> 
>  Do you want to share your IP address to make your communication faster?
> 
> The usual answer would be yes.  I'll reword your comment as follows:
> 
>  it is about the ability for the user to decide about the context when
>  they want to reveal information and when they don't, in all fairness.
> 
> There are too many tangents to that.  There is also the question of whether 
> the average person can take an informed decision.

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