+1

-----Original Message-----
From: Tcpinc [mailto:[email protected]] On Behalf Of Tero Kivinen
Sent: Wednesday, March 11, 2015 8:24 AM
To: [email protected]
Subject: [tcpinc] Going forward without protecting TCP headers

In the Honolulu meeting we had long discussion about whether to protect the TCP 
headers or not. There were several people who considered the main idea of 
tcpinc, to be to protect against passive attacks, and did not care that much 
about active attacks, i.e. didn't care for protection of the TCP headers. There 
were also few people in favor of protection of header bits, i.e.
protect against active attacks.

Everybody wanted to protect data for integrity, i.e. MAC of data stream and 
protection against replay. As most people in he meeting did not seem to want to 
have protection against active attacks, it was decided that those people who do 
want protect TCP header, would send email to the list and explain why they want 
it and what features needs to be protected.

I sent out the request for such comments at 2014-11-15:

http://www.ietf.org/mail-archive/web/tcpinc/current/msg00393.html

In my analysis of the email thread, there were two people who said they would 
like to have some TCP features to be protected:

http://www.ietf.org/mail-archive/web/tcpinc/current/msg00396.html
http://www.ietf.org/mail-archive/web/tcpinc/current/msg00403.html

There were more than dozen people discussing this in the meeting, and while 
people expressed opinions supporting the two options, we believe that there is 
more support for going for not protecting the header.
Moreover, we believe that at this stage it is more important to make a decision 
and move forward.

Based on this the tcpinc chairs have decided that we will go with the option of 
NOT protecting the TCP headers.

This means that in Dallas IETF we should work forward based on this decision.
--
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