TLS renegotiation MITM

[Steve Dispensa]

Glad to. What's the best git tree? I thought I had the right one based  
on the site.

Thanks.

  -Steve

On Nov 6, 2009, at 5:36 AM, "Simon Josefsson" <simon at josefsson.org>  
wrote:

> Steve Dispensa <dispensa at phonefactor.com> writes:
>
>> Hi,
>>
>> A colleague and I have released details of a new attack against TLS  
>> in the
>> area of renegotiation. Information is here:
>>
>> http://extendedsubset.com/?p=8
>>
>> During the process of running this bug (and its proposed solution) to
>> ground, I implemented a patch to GNUTLS, attached. There are also  
>> two new
>> files that implement the extension that solves the problem.
>>
>> There is lots of background in the above link, but the one missing  
>> part is
>> the Internet Draft that has been tentatively agreed on by most of  
>> the major
>> vendors (pending IETF action, of course). That draft is what I have
>> implemented, and you should see it posted to the TLS IETF list  
>> tomorrow
>> morning.
>>
>> I'd be happy to help in any way I can.
>
> What GnuTLS version is your patch for?  We haven't used a configure.in
> file in a long time.  Would you mind reworking it for GnuTLS 2.8.x
> and/or 2.9.x?  Those are the latest stable and experimental branches.
>
> Once the copyright paper issue has been resolved, we could integrate  
> it.
>
> /Simon