Re: [rtcweb] Traffic should be encrypted. (Re: Let's define the purpose of WebRTC)
Randell Jesup <randell-ietf@jesup.org> Fri, 11 November 2011 18:46 UTC
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From: Randell Jesup <randell-ietf@jesup.org>
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Subject: Re: [rtcweb] Traffic should be encrypted. (Re: Let's define the purpose of WebRTC)
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On 11/11/2011 8:38 AM, Hadriel Kaplan wrote: > On Nov 11, 2011, at 7:02 AM, Roman Shpount wrote: > >> Well, this is a perfect example when specifying mandatory security for wrong reasons is simply being ignored. All the reactions I've seen to this so far were "this is only a SHOULD, let's disregard this for now". Getting security requirements in the standard which are too high too be practical usually produces products which disregard security completely, reaching the exactly opposite effect. I think, in this particular case, the right course of action is to use AVT tones in RTP as the rest of the industry is doing now. > I think using in-band tones in RTP for DTMF instead of 4733 would be a really bad idea. +10. Let's not even discuss that option further. >> Finally, (going slightly off topic here) it would probably be a good idea to make key exchange part of the initial ICE transaction. This way we can use this key exchange as an additional verification of the remote party, and reduce the number of round trips required before the media flow is established. > That's an interesting idea. The extra round trips of DTLS-SRTP, added to those of ICE, have had me worried about clipping when the user answers the call. It's been an advantage of SDES not to worry about that. Anything we can do to minimize clipping and reduce startup RTTs is a *very* good thing. We should start seriously analyzing this as we're getting down to more specifics. And recent privacy breaches have shown that otherwise-good pre-warming of connections and pre-negotiation of codecs may be problematic from a security point of view - exchanging ICE candidates with an incoming OFFER from your abusive ex-boyfriend might tell them where you are (local IP), though it would be possible for people not wanting to disclose their address to *require* a TURN proxy be in use and not offer local IP, limiting the leaked information. This does require proactive selection of safety by the user, a risky proposition. As a possible compromise, you could force TURN for the pre-start of the call and if accepted, renegotiate with real local addresses. Might cause a glitch though if you're not careful. -- Randell Jesup randell-ietf@jesup.org
- [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Cameron Byrne
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC José Luis Millán
- Re: [rtcweb] Let's define the purpose of WebRTC Tim Panton
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Christer Holmberg
- Re: [rtcweb] Let's define the purpose of WebRTC Tim Panton
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Justin Uberti
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC John Elwell
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- [rtcweb] SRTP - mandatory to implement vs mandato… Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Wolfgang Beck
- Re: [rtcweb] Let's define the purpose of WebRTC Stefan Håkansson LK
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Let's define the purpose of WebRTC Jonathan Lennox
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Wolfgang Beck
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Wolfgang Beck
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] SRTP - mandatory to implement vs man… Magnus Westerlund
- Re: [rtcweb] Let's define the purpose of WebRTC Cullen Jennings
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- [rtcweb] SRTP requirement - wiretapping (Re: Let'… Harald Alvestrand
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran Parthasarathi
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Bernard Aboba
- Re: [rtcweb] surveillance in RTCWEB (was wiretapp… Bernard Aboba
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Cameron Byrne
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran Parthasarathi
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Cameron Byrne
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Avasarala, Ranjit
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Avasarala, Ranjit
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran, Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Neil Stratford
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC DRAGE, Keith (Keith)
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Neil Stratford
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Ravindran, Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Tim Panton
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Randell Jesup
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Let's define the purpose of WebRTC Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Christer Holmberg
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran, Parthasarathi
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran, Parthasarathi
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] SRTP - mandatory to implement vs man… Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Randell Jesup
- Re: [rtcweb] SRTP - mandatory to implement vs man… Harald Alvestrand
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- [rtcweb] Traffic should be encrypted. (Re: Let's … Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Roman Shpount
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Roman Shpount
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Eric Rescorla
- Re: [rtcweb] Let's define the purpose of WebRTC Hadriel Kaplan
- Re: [rtcweb] Let's define the purpose of WebRTC Eric Rescorla
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran, Parthasarathi
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Olle E. Johansson
- Re: [rtcweb] Let's define the purpose of WebRTC Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Roman Shpount
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Hadriel Kaplan
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Roman Shpount
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Cullen Jennings
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Eric Rescorla
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Hadriel Kaplan
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Randell Jesup
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Kevin P. Fleming
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Iñaki Baz Castillo
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Hadriel Kaplan
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Iñaki Baz Castillo
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Ravindran, Parthasarathi
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Hadriel Kaplan
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Miguel Casas-Sanchez
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Marc Petit-Huguenin
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Tim Panton
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Iñaki Baz Castillo
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- [rtcweb] Traffic on the list (Re: Traffic should … Harald Alvestrand
- [rtcweb] Fwd: Traffic should be encrypted. (Re: L… Wolfgang Beck
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Hadriel Kaplan
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Christer Holmberg
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Roman Shpount
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Randell Jesup
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Randell Jesup
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Neil Stratford
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Randell Jesup
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Michael Thornburgh
- Re: [rtcweb] Let's define the purpose of WebRTC Matthew Kaufman
- Re: [rtcweb] Let's define the purpose of WebRTC Matthew Kaufman
- [rtcweb] Media Synchronization (Re: Traffic shoul… Matthew Kaufman
- [rtcweb] DTMF (was Re: Traffic should be encrypte… Matthew Kaufman
- Re: [rtcweb] Let's define the purpose of WebRTC Roman Shpount
- [rtcweb] POTS lines to browser (was Re: Fwd: Traf… Matthew Kaufman
- Re: [rtcweb] POTS lines to browser (was Re: Fwd: … Wolfgang Beck
- [rtcweb] Call Security (was Re: Let's define the … Matthew Kaufman
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Tim Panton
- Re: [rtcweb] POTS lines to browser (was Re: Fwd: … Tim Panton
- Re: [rtcweb] POTS lines to browser (was Re: Fwd: … Iñaki Baz Castillo
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] Media Synchronization (Re: Traffic s… Harald Alvestrand
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Tim Panton
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Justin Uberti
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Bernard Aboba
- Re: [rtcweb] Traffic should be encrypted. (Re: Le… Victor Pascual Avila
- Re: [rtcweb] Let's define the purpose of WebRTC Iñaki Baz Castillo
- Re: [rtcweb] SRTP requirement - wiretapping (Re: … Cullen Jennings