Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-04 Thread Jonathan Marquardt
On Thu, Oct 04, 2018 at 06:23:32AM +, ithor wrote: > Ok, correct me if I'm wrong. Is this what happens in a meek request : > 1. unencrypted http request with the hostname I want to connect to in > cleartext. > 2. encrypted https connection to the hostname. > 3. encrypted (http?) relay

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-04 Thread ithor
Sent with ProtonMail Secure Email. ‐‐‐ Original Message ‐‐‐ On Wednesday, October 3, 2018 4:25 PM, Andreas Krey wrote: > On Wed, 03 Oct 2018 13:03:14 +, ithor wrote: > ... > > > Can you elaborate upon that for the noob I am. If i understand you > > correctly, when using domain

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread Andreas Krey
On Wed, 03 Oct 2018 13:03:14 +, ithor wrote: ... > Can you elaborate upon that for the noob I am. If i understand you correctly, > when using domain fronting, Tor basically spoofs or "hijacks" the ip address > of an existing Azure server client ? SNI: Server Name Indication. While setting

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread ithor
The IP address of the Azure server you're connecting to. > How does the selection of the Azure server works ? Randomly ? If i understood > well, domain-fronting servers are supposedly located geographically close to > the origin of the browser request. Could it be that TBB selects an Azure >

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread Jonathan Marquardt
On Wed, Oct 03, 2018 at 12:25:52PM +, ithor wrote: > So a meek request is sent in clear-text. What exact information is given ? > The exact ip address of the Azure server, its geolocation ? The IP address of the Azure server you're connecting to. In the case of meek-azure the firewall would

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread Jonathan Marquardt
On Wed, Oct 03, 2018 at 08:30:53AM -0400, James Bunnell wrote: > I'm a little curious why some people don't take G Suite into consideration :) Google clearly doesn't like seeing it's services used for censorship circumvention.

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread ithor
Or they don't want to ruin their standing with the client who has the name that is used in the SNI (and who takes the loss when china should decide to block that b/c it's used by fronters). Can you elaborate upon that for the noob I am. If i understand you correctly, when using domain fronting,

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread Andreas Krey
On Wed, 03 Oct 2018 14:06:27 +, Jonathan Marquardt wrote: ... > They did so supposedly because it voilated their terms of use. It also probably violates a few RFCs, and they never advertised this 'feature'. > They probably don't want to ruin their relationships with totalitarian > regimes.

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread James Bunnell
I'm a little curious why some people don't take G Suite into consideration :) On Wed, Oct 3, 2018 at 8:26 AM ithor wrote: > > ok, so for once i'll keep my fingers crossed for Microsoft... > > How should I imagine the connection until the Azure server. What does it tell > the DPI ? Just that I'm

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread ithor
ok, so for once i'll keep my fingers crossed for Microsoft... How should I imagine the connection until the Azure server. What does it tell the DPI ? Just that I'm connecting to a close-to-my-country-based Microsoft CDN ? On wikipage it's stated that The technique works by using different

Re: [tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread Jonathan Marquardt
On Wed, Oct 03, 2018 at 08:38:52AM +, ithor wrote: > ever since TBB 8, there's the new moat way to obtain private obfs4 bridges > through a CAPTCHA. In the following webpage it's stated meek is used in > order to communicate with the Tor bridges database. Now, my question is : > which ones

[tor-talk] privacy concerns with new CAPTCHA-method for obfs4 bridges

2018-10-03 Thread ithor
Hi, ever since TBB 8, there's the new moat way to obtain private obfs4 bridges through a CAPTCHA. In the following webpage it's stated meek is used in order to communicate with the Tor bridges database. Now, my question is : which ones ? In my country, domain fronting for Amazon and Google are