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Get the finished message of TLS handshake
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Christian Koßmann
May 14, 2013, 5:12:55 AM5/14/13
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Hey,
I try to implement a prototype implementation of tls-unique (RFC 5929) in Firefox for a German research group. Therefore I need the finished message of the TLS handshake. After hours of research I found out that this is "most likely" not possible to get the finished message in a Firefox extension. But what about XPCOM components? Is it possible to create an XPCOM component that propagates such implementation details or do I really have to modify the source code of nss? Or is there any other way that I have overlooked?
I looking forward to your answer,
Christian Koßmann
I try to implement a prototype implementation of tls-unique (RFC 5929) in Firefox for a German research group. Therefore I need the finished message of the TLS handshake. After hours of research I found out that this is "most likely" not possible to get the finished message in a Firefox extension. But what about XPCOM components? Is it possible to create an XPCOM component that propagates such implementation details or do I really have to modify the source code of nss? Or is there any other way that I have overlooked?
I looking forward to your answer,
Christian Koßmann
Wan-Teh Chang
May 14, 2013, 3:50:33 PM5/14/13
to Christian Koßmann, dev-se...@lists.mozilla.org
You can try the NSS patches in
https://bugzilla.mozilla.org/show_bug.cgi?id=563276#c1
https://bugzilla.mozilla.org/show_bug.cgi?id=563276#c4
The two patches are independent attempts at an implementation,
so you only need one of the patches.
You can also try the SSL_ExportKeyingMaterial function:
http://mxr.mozilla.org/nss/ident?i=SSL_ExportKeyingMaterial
This implements RFC 5705, Keying Material Exporters for
Transport Layer Security (TLS). It is already in NSS.
Wan-Teh
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