Re: [liberationtech] Browser extensions or native application for crypto? Was: Whiteout OpenPGP.js encrypted mail client (Chrome HML5 App)

2014-01-23 Thread Tony Arcieri
On Thu, Jan 23, 2014 at 3:05 AM, Fabio Pietrosanti (naif) < li...@infosecurity.ch> wrote: > Browser extension could be hacked if they are unsafe, trough the use of > XSS-like attack techniques, by triggering an external payload into it > (for example from a website visited by the user). > ...but

Re: [liberationtech] WebRTC - voice authentication to the rescue

2014-01-23 Thread Joseph Lorenzo Hall
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 1/23/14, 3:12 PM, Al Billings wrote: > "One of the interesting aspects of WebRTC is that it has > encryption baked right into it; there's actually no way to send > unencrypted media using a WebRTC implementation. The developing > specifications c

Re: [liberationtech] WebRTC - voice authentication to the rescue

2014-01-23 Thread Al Billings
I know EKR and can get him on board if people have a need (well, I can ask but I’m not sure what his time is like). From: Joseph Lorenzo Hall Joseph Lorenzo Hall Reply: liberationtech liberationtech@lists.stanford.edu Date: January 23, 2014 at 1:27:55 PM To: liberationtech@lists.stanford.edu libe

Re: [liberationtech] WebRTC - voice authentication to the rescue

2014-01-23 Thread shootak...@riseup.net
All WebRTC needs to be as secure as a service like ostel.me is a browser extension implementing ZRTP authentication between you and the callee. This approach does not rely on PKI and does not need a server in between caller and callee. Also the ZRTP authentication string some of you are seei

Re: [liberationtech] WebRTC - voice authentication to the rescue

2014-01-23 Thread Al Billings
"One of the interesting aspects of WebRTC is that it has encryption baked right into it; there's actually no way to send unencrypted media using a WebRTC implementation. The developing specifications currently use DTLS-SRTP keying[1], and that's what both Chrome and Firefox implement.” http://s

Re: [liberationtech] WebRTC - voice authentication to the rescue

2014-01-23 Thread carlo von lynX
On Thu, Jan 23, 2014 at 11:58:28AM -0800, Tony Arcieri wrote: > ZRTP authentication works by negotiating what's called a "short > authentication string" between peers. If there's no MitM, both sides will > see the same string. > > To authenticate, you start a voice/video call. You will see the per

Re: [liberationtech] WebRTC - The next big surveillance machine

2014-01-23 Thread Al Billings
Except implementations are using crypto as an option… From: carlo von lynX carlo von lynX So I expect WebRTC to become the next major problem for the liberation  business as it removes one more reason for people to install actual  free software - just now that free software Skype alternatives are

Re: [liberationtech] WebRTC - The next big surveillance machine

2014-01-23 Thread Tony Arcieri
On Thu, Jan 23, 2014 at 11:52 AM, carlo von lynX < l...@time.to.get.psyced.org> wrote: > > say it not secure. WebRTC is compatible with ZRTP key-authentication > which > > builds in a video-based auth scheme and should stop MITM attacks (last > time > > You can't diffie-hellman yourself out of a M

[liberationtech] WebRTC - The next big surveillance machine

2014-01-23 Thread carlo von lynX
> > Dunno, WebRTC is so prone to MITM. > > I'd rather have something secure. On Tue, Jan 21, 2014 at 09:01:49PM -0500, Lucas Dixon wrote: > What kind of MITM attack are you thinking of? WebRTC doesn't specify a key > authentication protocol, so not sure WebRTC is anything specific enough to The a

Re: [liberationtech] Browser extensions or native application for crypto? Was: Whiteout OpenPGP.js encrypted mail client (Chrome HML5 App)

2014-01-23 Thread Edwin Chu
Comments inline. Edwin On Thu, Jan 23, 2014 at 3:05 AM, Fabio Pietrosanti (naif) < li...@infosecurity.ch> wrote: > Let's try to get bit deeper in the comparison of the effective > vulnerability exposure window of a chrome browser extensions vs. native > application. > > My feeling is that chro

Re: [liberationtech] Browser extensions or native application for crypto? Was: Whiteout OpenPGP.js encrypted mail client (Chrome HML5 App)

2014-01-23 Thread Maxim Kammerer
Operating systems have decades of research into privilege separation between users and processes. Browsers are a nice interface for viewing websites. If you want signed executables and cross-platform support, you can use e.g., Java Web Start (which is what Android apps essentially boil down to). --

Re: [liberationtech] Browser extensions or native application for crypto? Was: Whiteout OpenPGP.js encrypted mail client (Chrome HML5 App)

2014-01-23 Thread Fabio Pietrosanti (naif)
Let's try to get bit deeper in the comparison of the effective vulnerability exposure window of a chrome browser extensions vs. native application. My feeling is that chrome browser extensions are more secure than native applications. > > Il 1/22/14, 9:53 AM, Tony Arcieri ha scritto: > > It's tr