Hi, does anyone know what the 21760 (0x5500) extension is that IE from Windows 10 send ?
Hex content: 000100020002
(Putting my Microsoft employee hat on...)
I'm not on the team that's working on this, but I asked that team your question. They said this is a prototype implementation of the TLS token binding extension drafts working their way through the IETF token binding working group. They're temporarily using this extension ID until an official ID can be assigned through the IANA. The prototype implementation will continue to evolve as the drafts evolve, so they don't recommend trying to integrate with it at this time.
- Troy Starr [MSFT]
I don't see such.
Also: Transport Layer Security (TLS) Extensions
Web-Pcap https://suche.org/net/5500.pdml.xml of the client hello.
Full-Packet of the Request https://suche.org/net/5500.pcap
Version of IE:
Same with Edge:
My Windows 10 with latest updates doesn't send such.
Interesting i also does not have any updates available.
What is you windows IE Version ?
I have IE prohibited to run, so I took it from iexplore.exe properties.
Hi if i look at the Properties of "C:\Program Files\Internet Explorer\iexplore.exe"
BuildTime: Tue Nov 24 10:14:06 2015
So it looks that they changed something in the last versions. And i am still interested what these new extension should be.
Hi i have one question i am using ne regular channel windows version. And now i hear that the IE contain an tls extension that is
temporary and should not bet used. So why is this in the productive version if not usable? On security relevant parts i am no fan
of undisclosed data parts.
Sorry tlussnig, afraid I don't know the answer to your question. (As I said, I'm not on the team working on this.)
You're welcome to provide feedback using the Windows Feedback app, though.
Hi i know two more extensions in the reserved range:
13172 := NextProtocolNegotiation
30032 := TLS-Channel ID (used in Chrome)
Retrieving data ...