Re: [tor-talk] [Tails-dev] secure and simple network time (hack)

2012-07-20 Thread adrelanos
Jacob Appelbaum: >> If anything, TLS is much harder to get right (see issue #16 on >> GitHub, for instance — tlsdate is currently susceptible to a MITM >> attack). > > It's a work in progress, of course. I use it with a pinned CA, so > in such a case, users are not vulnerable to a MITM attack unle

Re: [tor-talk] [Tails-dev] secure and simple network time (hack)

2012-07-20 Thread Jacob Appelbaum
adrelanos: > Jacob Appelbaum: >>> If anything, TLS is much harder to get right (see issue #16 on >>> GitHub, for instance — tlsdate is currently susceptible to a MITM >>> attack). >> >> It's a work in progress, of course. I use it with a pinned CA, so >> in such a case, users are not vulnerable to

Re: [tor-talk] More secure hidden service as client or relay?

2012-07-20 Thread HardKor
When you run a relay, your ip become public so it gives some information about you and your potential location. If your enemy knows that you are in a specific region for exemple it could become dangerous for you ! On the other hand, it would be more difficult for your enemy to exploit the dump of y

Re: [tor-talk] [Tails-dev] secure and simple network time (hack)

2012-07-20 Thread adrelanos
Jacob Appelbaum: > I think adding an option to verify the leaf certificate's > fingerprint, rather than just the signature alone would be a fine > idea. Yes, then we could ask eff, tpo and similars about their policy to change the certificates. If we pin their certificates, we don't have to trust

[tor-talk] TorBirdy Not Allowing Connections to Servers

2012-07-20 Thread Ethan Lee Vita
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Pop servers (I don't use imap) don't connect while using TorBirdy, nor do SMTP servers. It just sticks at 'Connecting to pop.someserver.org...', not even asking for user password. SMTP comes up with Thunderbird didn't connect to SMTP error. TorBirdy

Re: [tor-talk] TorBirdy Not Allowing Connections to Servers

2012-07-20 Thread Jacob Appelbaum
Ethan Lee Vita: > Pop servers (I don't use imap) don't connect while using TorBirdy, nor > do SMTP servers. It just sticks at 'Connecting to > pop.someserver.org...', not even asking for user password. SMTP comes up > with Thunderbird didn't connect to SMTP error. TorBirdy did work until I > upgrad

Re: [tor-talk] [Tails-dev] secure and simple network time (hack)

2012-07-20 Thread Jacob Appelbaum
adrelanos: > Jacob Appelbaum: >> I think adding an option to verify the leaf certificate's >> fingerprint, rather than just the signature alone would be a fine >> idea. > > Yes, then we could ask eff, tpo and similars about their policy to > change the certificates. If we pin their certificates, w

Re: [tor-talk] [Tails-dev] secure and simple network time (hack)

2012-07-20 Thread adrelanos
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Jacob Appelbaum: > So does that mean you do or do not like DNSSEC? :) Can't say, I didn't dig into that deep enough. > I'd like to see a normal ntp client that runs over Tor safely - can > you show us an example of a way to do that? If so, I'd glad

Re: [tor-talk] TorBirdy Not Allowing Connections to Servers

2012-07-20 Thread Sukhbir Singh
Hi, Ethan Lee Vita: > Could someone share some advice on where to look for a solution? I've > not seen any mention via online searches, this list, or the bug tracker > regarding anyone else having this problem, so I suspect its something on > my end. To add to what Jake said, either try accessing

Re: [tor-talk] Torbirdy and gpg --throw-keyids

2012-07-20 Thread Tim Wilde
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 7/18/2012 6:19 PM, Jacob Appelbaum wrote: > The gpg manpage says the following: > > Do not put the recipient key IDs into encrypted messages. This > helps to hide the receivers of the message and is a limited > countermeasure against traff

Re: [tor-talk] TorBirdy Not Allowing Connections to Servers

2012-07-20 Thread Ethan Lee Vita
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jacob Appelbaum: > Are you trying to use pop3 without SSL/TLS? If so, I think this is > expected behavior - we didn't want anyone to insecurely check > pop/imap/smtp over Tor unless they *really* know what they're doing. I've had SSL/TLS enabled from

Re: [tor-talk] Torbirdy and gpg --throw-keyids

2012-07-20 Thread Tom Ritter
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I agree with Jake. Less information disclosed is better. Under some circumstances I will encrypt a message to recipients not in the email. For example, if I am emailing on behalf of a group, I will encrypt to the group, even if I do not CC/BCC the

Re: [tor-talk] secure and simple network time (hack)

2012-07-20 Thread intrigeri
Hi, adrelanos wrote (18 Jul 2012 18:37:18 GMT) : > To make our life even worse... Sorry... But not using NTP and only > emmiting Tor traffic is also pretty clearly Tails. Because that puts > you in the group of users "Uses Tor, nothing else, but does not use > NTP? How many people act like this?".

Re: [tor-talk] secure and simple network time (hack)

2012-07-20 Thread intrigeri
Hi, Jacob Appelbaum wrote (19 Jul 2012 23:48:48 GMT) : > The key difference with htpdate is that one has a cryptographic > signature. I'll take a subset of possible MITM attackers over fully > trusting something that anyone could MITM. I think this is wrong in the context of Tails. There are a f

Re: [tor-talk] secure and simple network time (hack)

2012-07-20 Thread adrelanos
intrigeri: > Hi, > > adrelanos wrote (18 Jul 2012 18:37:18 GMT) : >> To make our life even worse... Sorry... But not using NTP and only >> emmiting Tor traffic is also pretty clearly Tails. Because that puts >> you in the group of users "Uses Tor, nothing else, but does not use >> NTP? How many pe

Re: [tor-talk] secure and simple network time (hack)

2012-07-20 Thread adrelanos
intrigeri: > There are a few pieces of software called htpdate, and the one Tails > uses only connects to HTTPS servers, and delegates to wget the X.509 > certificates validation: > https://tails.boum.org/contribute/design/Time_syncing/#index3h2 Unfortunately wget (nor any other command line downl

Re: [tor-talk] TorBirdy Not Allowing Connections to Servers

2012-07-20 Thread Sebastian G.
Jacob Appelbaum: > Ethan Lee Vita: >> Pop servers (I don't use imap) don't connect while using TorBirdy, nor >> do SMTP servers. It just sticks at 'Connecting to >> pop.someserver.org...', not even asking for user password. SMTP comes up >> with Thunderbird didn't connect to SMTP error. TorBirdy di